Need an estimated retail value of your Zultanite® gemstone or jewelry? We recommend the following laboratories for all Zultanite® appraisals.
Labtrade Gemological Laboratory (LGL)
The LGL was founded to serve the jewelry industry by providing diamond reports using grading standards developed in the mid-1950s. Since 1996, LGL has been dedicated to ensuring the public trust in gems and jewelry by upholding the highest standards of integrity, science and professionalism.
LGL is one of the top independent diamond, gemstone and jewelry certification and appraisal services in the United States. Renowned for its quality,
LGL has an unsurpassed reputation for reliability, integrity and fast service.
LGL offers high quality certificates and appraisals at the most affordable and competitive prices in the market today. LGL’s diamond certificate, appraisal report, and gemological authentication are considered the world’s premier value for gemological credentials.
LGL is listed in the Rapaport Global Guide to Gemological Laboratories as one of the top laboratories in the USA. Labtrade Gemological Laboratory is a neutral organization and does not endorse or recommend any commercial product, company or individual.
The LGL can accept items for appraisal by secure courier and provide internet accessible certificate verification and account status. LGL appraisals are recognized by all insurance companies.
Labtrade Gemological Laboratory
Gemological Appraisal Laboratory of America, Inc. (GAL)
The GAL is a reputable independent gemstone and jewelry appraisal service located in the heart of New York City’s diamond district. For over 25 years, the GAL has offered both the jewelry trade and consumers’ accurate and reliable diamond and gemstone identification and certification to validate their gemstone purchases.
Employing GIA (Gemological Institute of America) graduate gemologists, the GAL laboratory is equipped with state-of-the-art technology and provides one of the fastest services of any major gemological laboratory. They are charter members of GIA Alumni Association, associate members of International Society of Appraisers (ISA) and senior members of the National Association of Jewelry Appraisers (NAJA).
The GAL can accept items for appraisal by secure courier and provide internet accessible certificate verification and account status. GAL appraisals are recognized by all insurance companies.