The Jewelry Appraisal and Gemological Institute provides a full range of expanding services including Cardcerts, appraisals, insurance evaluation, diamond reports and other services.

6Day Average Turnaround
3695Thousands of Appraisals

JAGi was founded over two years ago by Moris Adato, Graduate Gemologist and successful pawnbroker. Moris understood there is a vast amount of unrealized wealth, sales and profits for every pawnbroker in their gemstone and jewelry inventory. However, there was no ethical and verifiable authority to create credentials critical to the sale of items both in-store and online. With today’s jewelry sales demanding certification and appraisal from an ethical source especially online, Moris founded Cal Gem Labs to service pawnbroker needs. With the expansion of the lab grown diamond market and other simulated and synthetic gemstones, the need for a certified report has never been more urgent. JAGi is fast becoming a full service laboratory adhering to GIA standards and utilizing the latest measurement and detection technology. All jewelry, gemstones and diamonds are examined, graded and appraised by GIA Graduate Gemologists.

key details about our companyWhat Makes Us Different?

Full-Service Lab

Jewelry gemstone, diamond appraisals and certificates, parcel sorting, cleaning, repair, Rolex certification, GIA Concierge service and more…


Our GIA graduate gemologists have evaluated tens of thousands of items and have a combined experience of over 75 years.


We adhere to the highest standards of integrity and professionalism to serve you the right way. See what others have said below.


Our convenient, business card-sized CardCerts contain the information needed to certify the value of your jewelry for insurance, estate and resale purposes. 

Fast Turnaround

We will send you your item back within 10-14 business days from the day it was received, or you will receive a 10% discount off your order. 

Latest Tech

Our mission is to provide accuracy and legitimacy using the latest technology found in the gemology and appraisal industry.

TestimonialsWhat They Are Saying