Hanna Tevanian
Netanya
Summary
Experienced gemologist with over 9 years of expertise in diamond grading and sorting. Proficient in the evaluation of gemstones, with a strong understanding of grading standards, diagnosing mineral inclusions, and identifying synthetic stones. Skilled in using advanced gemological equipment such as microscopes, Sarine machines, refractometers, and other diagnostic tools. Deep knowledge of diamond cutting and optical features, along with a commitment to maintaining high industry standards.
Overview
9
9
years of professional experience
Work History
Gemologist
EGL Laboratory
01.2020 - Current
- EGL Laboratory | Gemologist
- Evaluated diamonds using the 4C system (Clarity, Cut, Color, Carat).
- Operated Raman, FTIR, and UV-Vis 500 machines, scanning samples and interpreting the resulting spectra and graphs.
- Checked colored gemstones and diamonds in jewelry, using a loupe, refractometer, and microscope to confirm their quality and authenticity.
- Used the Sarine machine to scan diamonds and create precise models for certification.
- Additionally, drew diamond inclusions for certificates and made diagrams to confirm the quality of the stones.
Gemologist
Diamond13
01.2017 - 09.2019
- I was responsible for ordering diamonds for the factory, as well as grading, sorting, and preparing gemological certificates for each product. I managed a department of 7 jewelers who handled the setting of diamonds and other gemstones. Additionally, I oversaw the management and inventory of diamond, gold, and silver stocks, ensuring accurate counting and organization. I also conducted quality control of finished products to maintain high standards. I traveled to the diamond exchange in Antwerp to handpick and sort diamonds for production, participated in contract negotiations, and was involved in signing agreements.
Gemologist
ArtGems (Private Gemological Institution)
01.2016 - 01.2017
- A private gemological institution focused on grading and selling diamonds. My role involved grading diamonds and preparing gemological certificates. Additionally, the company collaborated with Pandora Jewelry, where we provided laboratory assessments of damaged products for insurance purposes.
- Measured and graded diamonds on basis of clarity, symmetry, color and polish.
Education
IT Master`s Degree - Master of Data Science Ana Data Analytics
WOOLF/Neoversity
Ukraine, Kyiv09.2025
Course - UI/UX DESIGN
GoIT
Ukraine, Kyiv06.2024
Gemology Course – Documentation, Grading and Evaluation Of Diamonds -
The Center of Gemological Studies Eli Dori And Hadas Dori Bar Moshe
Israel, Tel-Aviv11.2019
Theoretical and practical identification and grading of diamonds -
State Gemological Center of Ukraine
Ukraine, Kyiv10.2016
Bachelor degree specialty of Management -
Kiev National University of Technology And Design
Ukraine, Kyiv 06.2016
Secondary Education -
School N296
Ukraine, Kyiv06.2012
Skills
- Diamonds Grading and sorting (clarity, color, proportions, polishing, cutting)
- Grading of Diamonds and Gemstones in Jewelry
- Grading with loupe and microscope, 'Sarine', Refractometer and other gemological equipment
- Operated Raman, FTIR, and UV-Vis 500 spectrometers
- Confident PC user (Office, out lock, internet)
- Quality control of jewelry products
Languages
Ukrainian (Native), English (Advanced), Hebrew (Basic), Russian (Proficient)
Native language
Personal Qualities
- Stress resistance
- Fast learner
- Responsibility
- Teamwork skills
- Attentiveness
Timeline
Gemologist
EGL Laboratory
01.2020 - Current
Gemologist
Diamond13
01.2017 - 09.2019
Gemologist
ArtGems (Private Gemological Institution)
01.2016 - 01.2017
IT Master`s Degree - Master of Data Science Ana Data Analytics
WOOLF/Neoversity
Course - UI/UX DESIGN
GoIT
Gemology Course – Documentation, Grading and Evaluation Of Diamonds -
The Center of Gemological Studies Eli Dori And Hadas Dori Bar Moshe
Theoretical and practical identification and grading of diamonds -
State Gemological Center of Ukraine
Bachelor degree specialty of Management -
Kiev National University of Technology And Design
Secondary Education -
School N296
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