Isabel Cha
Brooklyn
Summary
Extremely driven and motivated professional working in the diamond and colored stones industry with a deep passion for beautiful stones and jewelry. Exposure to hundreds of thousands of carats of diamonds and gemstones. Exceptional attention to detail, high level of efficiency, rapid and eager learning of new skills and processes. Adaptable and flexible attitude. Ability to recognize and gauge the quality and value of diamonds, colored stones, and finished pieces.
Overview
16
16
years of professional experience
1
1
Certification
Work History
Processing Manager
Rapaport Diamond Corp
07.2023 - 11.2025
- Managed and oversaw all daily operations of the Processing department in preparation for the monthly auctions, including intake, shipping, weighing, recording, labeling, merchandising, grading, synthetic testing, sorting, and cataloging of diamonds.
- Created all sorting breakdowns.
- Communicated issues, recommendations, and requests for supplier approval to the supply team account managers.
- Worked directly with the COO on any issues that arose in the process of preparing for the auctions.
- Ensured adherence to the deadlines dictated by the monthly auction start dates.
- Managed 3 to 6 employees directly under my supervision to ensure accuracy and efficiency of work.
- Worked with outside services for recutting, boiling, and certification of goods at the GIA.
- Coordinated shipping the auctions to teams in Dubai and Israel.
- Reviewed and approved all invoices related to auctions preparation, viewing, and shipping.
- Worked closely with the IT team on developing a new program for the inventory and cataloging of the goods in auction each month.
- Created all catalogs for all auctions every month for thousands of single stones and hundreds of lots of melee.
Diamond Processing Associate
Rapaport Diamond Corp
09.2022 - 07.2023
- Received, weighed, recorded, and graded merchandise in the form of single diamonds and lots of melee diamonds.
- Maintained a high level of efficiency and accuracy.
- Communicated with processing manager any notes, issues, and recommendations for the goods.
- Transferred all goods into clearly labeled processing receptacles and place them in order.
- Handled thousands of carats of diamonds of varying qualities each day.
Staff Researcher
Danbury Equity
01.2018 - 01.2022
- Conducted research on potential fields of investment, including but not limited to biotechnology, food technology, and agriculture on behalf of the Principal.
Staff Gemologist and Sales Advisor
Vettri Gems
01.2016 - 01.2017
- Managed all daily showroom and office duties, maintained and handled a large inventory of various colored stones. Handled all order requests. Wrote most outgoing memorandums and followed up on any open memos. Provided client service and nurtured existing business relationships. Formed new relationships with major wholesalers. Provided gemological testing in private lab when appropriate. Reached sales goals and completed orders in a timely fashion.
Operations Manager
Birchbox
01.2012 - 01.2013
- Managed product stock and delivery, coordinating with team members and clients through web-based software across multiple platforms. Provided content writers with personal opinions on blog design and product knowledge and promotion.
Sales Associate
Sephora
01.2012 - 01.2013
- Led and coordinated one division of the entire sales team during peak earning seasons. Interacted personally with clients on sales floor.
Beauty Specialist
Ricky's NYC
01.2010 - 01.2012
- Managed all personalized, ongoing interactions for repeat clients and clients in need of more than basic retail assistance. Ensured client satisfaction in store, and followed up repeatedly when needed. Went above and beyond employee duties to care for clientele.
Education
Graduate Gemologist - Gemology
Gemological Institute of America
New York, NY11.2016
Bachelor of Arts - English
New York University
New York, NY01.2014
Skills
- High level of knowledge of the global diamond market and current market pricing for single stones and melee
- Fast and precise diamond grading skills using both 10x loupe and gemological microscope up to 64x Accurate identification of colored stones and grading of colored stones
- Valuation of mounted stones in finished pieces of jewelry from antique, vintage, and contemporary time periods
- Valuation of jewelry pieces from antique, vintage, and contemporary time periods
- Proficient in Microsoft Office
Certification
GIA Graduate Gemologist
Languages
English
Native or Bilingual
Chinese (Mandarin)
Native or Bilingual
Timeline
Processing Manager
Rapaport Diamond Corp
07.2023 - 11.2025
Diamond Processing Associate
Rapaport Diamond Corp
09.2022 - 07.2023
Staff Researcher
Danbury Equity
01.2018 - 01.2022
Staff Gemologist and Sales Advisor
Vettri Gems
01.2016 - 01.2017
Operations Manager
Birchbox
01.2012 - 01.2013
Sales Associate
Sephora
01.2012 - 01.2013
Beauty Specialist
Ricky's NYC
01.2010 - 01.2012
Graduate Gemologist - Gemology
Gemological Institute of America
Bachelor of Arts - English
New York University