Gemology Course - Precious Stones, Diamonds and Minerals

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From 94 C$ /h

With a doctorate in gemology from Claude Bernard University Lyon 1, I offer personalized courses to discover the fascinating world of precious stones, diamonds and minerals.

These courses are aimed at beginners, collectors, jewelry enthusiasts, students as well as professionals wishing to deepen their knowledge.

Topics covered may include:
• Identification of precious and semi-precious stones
• Introduction to diamonds and their valuation
• Differences between natural, synthetic and treated stones
• Minerals and Earth Sciences
• History and culture of gems
• Introduction to the observation and analysis methods used in gemology

The courses are tailored to the level and objectives of each student, using an approach that is scientific, practical and accessible.

Courses available in English and Persian.

Location

Online from France

About Me

I have a doctorate in gemology from Claude Bernard University Lyon 1 and am passionate about Earth sciences, precious stones and the transmission of knowledge.
With over 20 years of experience in gemology, geology, higher education and research, I have worked as a university lecturer, gemology laboratory manager, cultural heritage consultant and gem identification specialist.
My career has allowed me to collaborate with universities, museums, cultural institutions, and professionals in the jewelry sector. I am also a member of the ISO/TC 174 technical committee "Jewellery and Precious Metals".
I place great importance on teaching methods and adapting courses to the needs of each student. My goal is to make gemology accessible, engaging, and exciting, whether you are a beginner, collector, student, or professional.

I teach in French, English, and Persian.

Education

PhD in Gemmology
Claude Bernard University Lyon 1, France (2020)

University Diploma in Gemmology (DUGEM)
Claude Bernard University Lyon 1, France (2018)

Graduate Diamonds (GD)
Gemological Institute of America (GIA), London

Applied Jewelry Professional (AJP)
Gemological Institute of America (GIA)

Colored Stone Grading Laboratory
Gemological Institute of America (GIA)

Pearl Identification and Grading Laboratory
Gemological Institute of America (GIA)

Experience / Qualifications

University lecturer in scientific gemmology
• Head of gemology laboratory for several years
• Former director of the Gemological Development Institute of Iran (GDII)
• Consultant in gemstone identification and appraisal
• Professional gemology trainer for various organizations and institutions
• Experience in the study of museum collections and cultural heritage
• Participation in research projects on historical gems and turquoise
• Member of the ISO/TC 174 technical committee "Jewellery and Precious Metals"
• Interventions in educational workshops for children and adults

Areas of expertise:

Identification of precious and semi-precious stones
Diamonds and evaluation criteria
Minerals and Earth Sciences
Historic gems and cultural heritage
Introduction and advanced training in gemology

Age

Preschool children (4-6 years old)

Children (7-12 years old)

Teenagers (13-17 years old)

Adults (18-64 years old)

Seniors (65+ years old)

Student level

Beginner

Intermediate

Advanced

Duration

45 minutes

60 minutes

The class is taught in

French

English

Persian

Turkish

Skills

Science

Jewelry making

Beadmaking

Availability of a typical week

(GMT -05:00)

New York

Online via webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Mohamed

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(22)

Physics and chemistry are fundamental subjects for success in entrance exams for prestigious universities and selective programs. A solid grasp of the concepts, combined with effective methodology, is essential for achieving good results.

I offer specialized support to prepare for entrance exams to top universities and strengthen your scientific foundations. My goal is to help you fill in any gaps in your knowledge, consolidate your existing skills, and develop rigorous scientific reasoning.

✅ Review of essential concepts in physics, chemistry and mathematics
✅ Methodology for solving exercises and time management
✅ Intensive training with exercises and exam-style questions
✅ Personalized support tailored to your level and goals

As a young researcher passionate about science, I offer you a clear and structured educational approach to help you progress effectively and succeed in your competitions.

📩 Feel free to contact me for more information.

Patricia

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(22)

I am miss Patricia, I am native, French-speaking (🇫🇷) having as an activity outside of my studies tutoring. I teach the French language (FLE) and the English language (ESL). I also have skills to teach learners to repeat in math (📐📏✏🔢), chemistry (👩‍🔬🧑‍🔬🧪📗), biology 🫁🫀🦷🥼🔬 (and/or natural sciences 🌏🍀🪰🪱🦠 🥽), French (🇫🇷) and English (🇬🇧).
If you are a parent and you are actively looking for a tutor to supervise your children (help with homework or rehearsals), I am at your disposal. Having a great experience that I acquired by babysitting and serving in youth groups, I was able to immerse myself in the psychology of young people and children and I have this ability to touch their difficulties. . Learning is not the army or a chore, in addition to being an excellent tutor for them, I can also be this benevolent company that will allow them to unleash their potential.
My announcement concerns learners of the French-speaking system (French, Belgian, Canadian) and the bilingual system (French, English).
Through the first course, I would highlight my skills mentioned above and if you are won over, we can continue together.

Level concerned by my ad:

- primary level (any subject)

- middle school level (English, French, mathematics), biology (and/or natural sciences), chemistry

- high school level (English, biology)

If you are interested in this ad, comment with a plus, or write me a private message and together let's make your children better at school.

Miss Patricia,

Mavi

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I am Mavi, a physics engineer working at an aerospace company.
I have been teaching private lessons at the primary, secondary, high school, and university preparatory levels for 9 years. I teach mathematics, physics, chemistry, and science. I have a good command of the curricula of IB, IGCSE, American, Hong Kong, and international schools.

Additionally, I hold the position of president at the Astronomy Society, where I foster my students' interest in astronomy and science beyond the lessons. I prepare the learning environment by incorporating experiments and exploration, moving away from rote education. I often bring experimental materials to class, aiming to make learning memorable through hands-on experiments.

As an educational mentor, I approach my students as if they were my siblings, valuing creativity. I have a deep passion for mathematics, physics, and science. I am dedicated to helping students understand and learn because life encompasses both SCIENCE and ART. The more people I can inspire to know, understand, and love mathematics, physics, and chemistry, the more proud I am.

Are you curious about how nature works?

Let's explore together!

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Are you an IB Chemistry HL or SL student aiming for a higher grade and greater confidence in exams?

This course provides **structured, exam-focused IB Chemistry tutoring** designed to strengthen your understanding, improve problem-solving skills, and prepare you effectively for IB assessments.

With **10+ years of experience teaching international Chemistry curricula**, I help students move beyond memorizing content and learn how to apply Chemistry accurately to unfamiliar questions and IB-style problems.

### What We Cover

**IB Chemistry HL & SL**

* Complete syllabus coverage and targeted revision
* Concept clarification and deeper understanding
* Stoichiometry and quantitative calculations
* Organic Chemistry and reaction mechanisms
* Energetics and thermochemistry
* Kinetics
* Equilibrium
* Acids, bases and pH
* Redox reactions and electrochemistry
* Data-based and unfamiliar exam questions
* Past-paper practice and mark-scheme analysis
* Common mistakes and examiner expectations
* Exam timing and answer-structuring strategies

### IB Chemistry IA Support

Students can also receive structured guidance with their **Internal Assessment**, including:

* Developing and refining a suitable research question
* Discussing experimental design and methodology
* Data processing and uncertainty analysis
* Interpreting results
* Evaluation and conclusion
* Improving scientific reasoning and communication

IA support focuses on **guidance and feedback**, helping students understand how to develop and evaluate their own work.

### My Teaching Approach

Lessons are **structured, focused and personalized** according to the student's current level and target grade.

Students learn to:

* Understand Chemistry rather than simply memorize it
* Apply concepts to unfamiliar situations
* Solve calculations accurately and systematically
* Interpret graphs, tables and experimental data
* Structure answers according to IB expectations
* Learn from mark schemes and past-paper questions
* Identify and correct recurring mistakes
* Build confidence under exam conditions

Each student receives a **personalized study plan** based on their strengths, weaknesses, upcoming assessments and target grade.

Whether you are struggling with a particular topic, preparing for exams, or aiming to move from a good grade to an excellent one, the lessons are tailored to your specific needs.

Chiwila

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(22)

As a dedicated tutor with extensive experience in preparing students for standardized exams such as the SAT, GMAT, and SSAT, I understand the unique challenges that each of these tests presents. My approach is comprehensive and focuses on building a strong foundation in critical areas such as Mathematics, Quantitative Reasoning, Verbal Skills, and Analytical Writing. Each program I develop is tailored to the specific requirements of the exam, ensuring that students are well-prepared and confident on test day.

Having a deep understanding of the test formats and question types allows me to provide personalized strategies that target each student's individual strengths and weaknesses. I believe that every student has a unique learning style, and my goal is to enhance their test-taking skills while improving their time management. By fostering a supportive learning environment, I aim to boost students' confidence and empower them to achieve top scores.

My tutoring sessions incorporate a variety of effective methods, including real exam questions and timed practice tests. This hands-on approach allows students to familiarize themselves with the types of questions they will encounter, making the actual exam feel less daunting. I teach proven techniques for tackling even the most challenging problems, ensuring that students feel equipped to handle any question that comes their way.

One of the key components of my tutoring is helping students develop effective study habits. I provide guidance on creating a structured study plan that maximizes their preparation time and aligns with their personal goals. This structured approach not only keeps students on track but also helps them build a sense of accountability, which is crucial for success.

In addition to academic preparation, I also focus on the psychological aspects of test-taking. Many students experience anxiety leading up to exams, which can affect their performance. I teach relaxation techniques and mental strategies to help manage stress, allowing students to approach their exams with a calm and focused mindset. By addressing both the academic and emotional challenges of test preparation, I equip students with a well-rounded toolkit for success.

Feedback is an essential part of the learning process, and I make it a priority to provide constructive and actionable insights during our sessions. After each practice test, I conduct a thorough review of the results, highlighting areas for improvement while also acknowledging progress. This continuous feedback loop helps students understand their growth and keeps them motivated throughout their preparation.

My commitment to student success goes beyond just teaching content. I aim to inspire a love for learning and self-improvement in each of my students. Many of my former students have gone on to achieve their academic goals, securing places at prestigious universities and programs. Their success stories are a testament to the effectiveness of my tailored approach and the dedication I bring to each tutoring session.

If you're looking to master the SAT, GMAT, or SSAT with confidence, I invite you to book a session now. Together, we will develop a customized learning plan that suits your individual needs, ensuring that you are not only prepared to face the test but also equipped to excel and reach your highest potential. With my guidance and your commitment, we can achieve outstanding results. Let’s embark on this journey to success together!

Daniela

4.95

(22)

I got 4 A*s in my A levels that I took in June 2025 and I have tutored many students over the past 4 years. I motivate students and help them understand topics through activities of their preference. I tutor children of all ages. This class is intended up until age 15/16 maximum as curricula differ too much past that point. I also offer an A-level specific class.

Michael

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(22)

Expert Science & Chemistry Tutor – IGCSE | A-Level | IB | KS3
Online & In-Person Lessons Available in Madrid.

Are you looking for a dedicated, experienced, and results-driven science tutor to help you or your child excel in school or exams? Whether you're preparing for IGCSE, A-Level, IB, or Coordinated Sciences, I’m here to help you achieve your goals.

✅ Subjects Offered:

Chemistry (IGCSE, A-Level, IB, Edexcel, AQA, Cambridge)

Coordinated Sciences (Double Award)

General Science (KS3 & KS4)

Exam preparation and lab skills (Paper 3/ practical-based support)

🧪 About Me:
I’m a qualified and passionate science teacher with over 10 years of experience teaching in international schools across Spain, the UK, and the Middle East. I currently work at a leading international school in and specialise in Chemistry and Coordinated Sciences.

🌟 What You’ll Get:

Personalized 1:1 support tailored to your learning style

Exam-focused strategies to boost confidence and grades

Simplified explanations of complex topics

Friendly, patient, and engaging lessons

Help with homework, projects, revision, and lab reports

📍 Location:

Online worldwide via Zoom/Google Meet

In-person in Madrid, flexible hours available

🎯 Who is this for?

Students aiming for top grades in science and chemistry

Those who need extra support understanding key concepts

IB or A-Level students needing help with Internal Assessments or lab work

📩 Message me today to book your first lesson or ask any questions. Let’s boost your science skills and exam success together!

Vincent

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Science includes all natural science subjects; PHYSICS, CHEMISTRY, BIOLOGY and MATHEMATICS . PHYSICS deals with MECHANICS of OBJECTS while CHEMISTRY deals with CHEMICAL CHANGES of different REACTIONS.On the other hand BIOLOGY is the study of LIFE PROCESSES and different MATERIALS that SUPPORTS LIFE.Whereas , MATHEMATICS is a subject that explains DIFFERENT CONCEPTS using NUMBERS and VARIABLES.

Dr.Ibrahim

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This course offers an integrated introduction to the core areas of science, including biology, physics, earth science, and environmental science. Students will explore scientific concepts, principles, and methods through hands-on experiments, observations, and problem-solving activities. Emphasis is placed on developing scientific literacy, critical thinking, and an understanding of the scientific method. The course encourages curiosity about the natural world and prepares students to apply scientific knowledge to everyday life and future academic study.

Kelvin

4.95

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Hi, Tutor Kelvin here your Maths Tutor.

MATHS;
Many students fail Maths because of already defeated mindset about Maths and unsharpened analytical skills.
As an experienced Tutor, my aim is to bridge in that gap.That's to make sure no student must ever be troubled with a concept that has a solution .

Topics to be covered in MATHEMATICS are:
•Types of Numbers
•Algebra
•Sets
•Indices
•Fractions
•Functions
•Trigonometry
•Equatioms
•Probability
•Transformations
•Geometry
•Proportions
•Exponential and Decay Curves
•Distance time Graphs
•Mensuration
•Properties of a Circle
•Statistics

Q.Why you will love Maths after the lessons?
1.I will help break down concepts to the level of your understanding.
2.I will make sure that I explain all the steps required per topic.
3.At the end of the day, I could've made sure you know and understand the requirements for each question.This will be achieved by exposing you to final examination papers.
4.I make sure I teach all the topics based on the syllabus.
5.I also share useful study tips to make you excel academically.

NOTE; I am a straight forward Tutor who strives to bring out the best in every student on time.I am always innovative by using interactive mode of Teaching Methodology.

I use well structured notes and past papers.Once I teach my student/s a topic, I make sure the lesson is concluded by attempting Examination Questions together.
In addition, each lesson takes 1 hour (60 minutes) duration.That time , is fair enough to have had all the lesson objectives met.

Booking me for a class guarantees excellent grades.
I look forward to be your Tutor.Don't forget to share your review after the lesson/s.I thank you.
Best regards,
~Kelvin

Fairy

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(22)

Do you find Physics difficult because of the formulas, calculations, or problem-solving? I can help you understand Physics concepts clearly and learn how to approach problems step by step.

I have a Bachelor’s Degree in Secondary Education major in Physical Science and several years of teaching and tutoring experience. I have taught Physics and other Science subjects to secondary and high school students, helping them develop both their conceptual understanding and problem-solving skills.

I can help you with topics such as:
• Motion and kinematics
• Forces and Newton’s Laws
• Work, energy, and power
• Momentum and collisions
• Waves and sound
• Electricity and circuits
• Magnetism
• Heat and thermodynamics
• Light and optics
• Measurements and units
• Physics calculations and problem-solving
• AP, GCSE, IGCSE, IB, A-Level, and high school Physics
• Homework, assignments, and exam preparation

My lessons are personalized, interactive, and focused on understanding rather than memorization. I explain concepts using simple language, diagrams, real-life examples, and step-by-step calculations. We will identify exactly where you are struggling and work on those areas at a pace that is comfortable for you.

For calculation-based questions, I will teach you how to identify the given information, choose the correct formula, substitute the values, calculate the answer, and check whether your answer makes sense. This helps you develop a reliable method that you can use independently during examinations.

We can also work through exam-style questions and practice exercises to improve your accuracy, confidence, and time management.

Whether you need help understanding a difficult topic, completing an assignment, catching up with your class, or preparing for an important examination, I will tailor our lessons to your specific needs and goals.

Let’s make Physics easier, clearer, and more manageable, one concept at a time!

Malek

4.95

(22)

## Mathematik, Physik & Naturwissenschaften – Nachhilfe und Abiturvorbereitung | RWTH Aachen

Ich studio Computer Engineering an der RWTH Aachen und biete individual Nachhilfe in Mathematik, Physik und Naturwissenschaften an – von der Sekundarstufe bis zur Oberstufe und zum Abitur.

**Mein Schwerpunkt liegt auf dem echten Verständnis der Inhalte, statt Formeln und Lösungswege einfach nur auswendig zu lernen.**

Ichläre mathematische and physikalische Zusammenhänge Schritt für Schritt, gehe individul auf das Lerntempo ein und arbeite gezielt an den Stellen, an denen noch Unsicherheiten bestehen.

**Gemeinsam können wir:**
- Actual Unterrichtsthemen verständlich aufarbeiten
- Hauhautgaben und Übungdessusgaben besprechen
- Wissenslücken systematisch schließen
- Uns gezielt auf Klassenarbeiten, Klausuren und das Abitur vorbereiten
- Schwierige Themen durch zusätzliche Aufgaben vertiefen und festigen

**Mathematik:** There are some examples of Algebra, Gleichungen, Funktionen, Geometrie, Trigonometrie, Analysis, Vektorrechnung and other mathematical themes.

**Physik:** Meine Schwerpunkte umfassen Mechanik, Elektrizitätslehre, Energie, technische Anwendungen soweitere schulrelevante Themengebiete.

Durch mein Ingenieurstudium beschäftige ich mich intensive mit höherer Mathematik, Physik und deren technischen Anwendungen. Daher cann ich bei Bedarf auch fortgeschrittene Schülerinnen und Schüler sowie Studienanfänger in mathematischen and physikalischen Grundlagen unterstützen.

**Der Unterricht ist auf Deutsch oder Englisch möglich** and wird individuall an das Level, die Ziele und die Bedürfnisse der Schülerinnen und Schüler angepasst.

Mein Ziel ist es, dass Mathematik und Physik nicht länger wie eine Sammlung zufälliger Formeln wirken, sondern zu logisch verständlichen und nachvollziehbaren Zusammenhängen werden.

Then we have the Grundlagen wirklich versteht, you can also find out more.

Bader

4.95

(22)

French
The law can seem difficult: technical vocabulary, lengthy texts, demanding legal reasoning. My goal is to make it clear and accessible, in the language that suits you best: Arabic, French, or English.

This course is aimed at law students (Bachelor's, Master's), candidates for competitive exams and professionals who want to strengthen their foundations.

You will learn to :

Understanding the fundamental concepts (civil law, criminal law, business law, constitutional law, etc.)
Mastering the methodology: essay, case commentary, practical case
Use legal terminology in all three languages
Prepare effectively for your exams and competitions

Each session is tailored to your level, your program and your goals.

🇬🇧 English
Law can feel hard: technical vocabulary, long texts and demanding legal reasoning. My goal is to make it clear and accessible, in the language that suits you best: Arabic, French or English.

This course is for law students (bachelor's, master's), exam candidates and professionals who want stronger foundations.

You will learn to:

Understand core concepts (civil, criminal, business and constitutional law...)
Master legal method: essays, case comments and case studies
Use legal terminology in all three languages
Prepare effectively for your exams

Each lesson is tailored to your level, your syllabus and your goals.

🇲🇦 Arabic
قد يبدو القانون صعباً: مصطلحات تقنية، نصوص طويلة، وتفكير قانوني دقيق. هدفي هو جعله واضحاً وسهلاً، باللغة التي تناسبك: الفرنسية أو الإنجليزية.

هذا الدرس موجه لطلبة القانون (الإجازة والماستر)، والمترشحين للمباريات، والمهنيين الراغبين في تقوية معارفهم.

ستتعلم:

فهم المدني، الجنائي، قانون الأعمال، الدستوري...)
Use: الحالات العملية
استعمال المصطلحات القانونية باللغات الثلاث
التحضير الجيد للامتحانات والمباريات

كل حصة مكيفة حسب مستواك وبرنامجك وأهدافك.

Shreya

4.95

(22)

I am an IIT grad. Having completed my BTech in Mechanical Engineering, I have a strong STEM background, and hence have cleared the second most toughest competitive examination in the world-JEE Advanced. Since I have a strong knack for teaching Maths and Science to students, I have always managed time for all my students and helped them excel in their studies. I provide online one-to-one classes to ensure full attention. I follow a structured curriculum curated specifically to the board and class that covers the syllabus, includes ample mock tests, and features doubt-clearing sessions for exam preparedness and concept readiness.

Iyanuoluwa

4.95

(22)

Are you looking for a patient, dedicated and supportive tutor who can help you understand difficult topics, improve your academic performance and build confidence in your studies? I am here to help!

I am an undergraduate tutor with 1–3 years of teaching experience, having worked with students both in Nigeria and internationally. I have also worked with the HAT Tutors team in the United Kingdom as an Assistant Tutor, where I gained valuable experience supporting students in their academic development.

I teach Mathematics, Physics, General Science, Verbal Reasoning and Non-Verbal Reasoning. I also support students preparing for examinations such as WAEC, JAMB, GCSE and other general school examinations.

My teaching approach is student-centred, structured and focused on understanding. I believe every student has the ability to improve when given the right guidance, encouragement and learning support.

During my lessons, I break down complex topics into simpler explanations, use relevant examples, provide practice questions and encourage students to ask questions freely. I also adapt my teaching methods to suit each student's learning pace, academic level and individual needs.

Whether you need help with your regular schoolwork, examination preparation, challenging topics or improving your problem-solving skills, I will work with you towards achieving your academic goals.

I offer both online and in-person lessons, providing flexibility and a comfortable learning environment.

**My goal is not just to help you pass examinations, but to help you understand what you are learning, become more confident and develop the skills to succeed independently.**

Let's make learning a rewarding experience!