Stuller, Inc.

Diamond & Gemstone Technology Specialist

Job Locations US-LA-Lafayette
Posted Date 3 months ago(6/9/2020 11:54 AM)
Req No.
Graduate Gemologist/GIA
Work Hours


The role of the Diamond & Gemstone Technology Specialist, under the supervision of the Diamond Buying Director, is the lead gemological authority for the company.  This position’s primary role is identifying the authenticity of diamonds and gemstones using both traditional gemological instruments as well as advanced spectrometers (Raman, PL, FTIR and UV-Vis-NIR) and reporting conclusions. This individual will also be responsible for the normal operation, maintenance and training of all gemological and other Diamond & Gemstone related instruments and equipment. 


  • Graduate Gemologist (GIA)
  • FGA (Gem-A) preferred
  • Advanced training in the separation of laboratory grown diamonds from natural mined diamonds
  • Minimum of 5 years work experience in gemological laboratory
  • Successful demonstration of archival methodology
  • Ability to share new learnings and knowledge with other team members


  • Supervising the process of screenings and referrals of diamonds for undisclosed lab grown, natural diamonds (ULGD) and their origin
  • Efficiently operating all gemological instrumentation (both traditional and advanced spectrometers) to assess and identify various species of gemstones, origins and treatments
  • Monitor new samples of gemstones as they come to the market, research and determine the unique identifying features that will assist in conclusive identification
  • Develops and maintains gemologically sound, written Standard Operating Procedures for the use of equipment and maintains equipment
  • Serve as the lead trainer for all gemological instruments used by company personnel. Available for consultation as needed by company associates
  • Train, develop and monitor techniques for associates and customers on use of camera used to record stones, safe and proper operations of GemScribe machine, lab grown vs. natural and gemological tools
  • Proofreading and editing text used in diamond and gemstone marketing to make sure it is gemologically accurate
  • Assist with testing gems and new gemological instrument submissions from vendors, and items sent back by customers
  • Maintain a continuing education curriculum in the field of gemology to stay abreast of the latest available research on new discoveries and advances from all recognized sources (GIA, Gem-A, De Beers, etc.)
  • Monitor new instruments for such things as lab grown diamond screening, testing and measuring devices as they are introduced into the market. Develop a working knowledge of appropriate devices
  • Develop, archive and maintain a Stuller Gem Lab “Knowledge Base”, accessible to all appropriate Stuller associates
  • Consistent delivery of accurate testing conclusions from all traditional gemological instruments


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