About Us
Who is Universal Gemological Laboratory?
An independent firm that identifies, appraises, and evaluates gemstones and jewelry — for the jewelry trade and the public.
Independent, always
The lab with nothing to sell you.
UGL performs identification, appraisal, and evaluation services for the jewelry trade and the public. Because we do not buy or sell jewelry, every grade and every dollar figure is an unbiased, expert opinion — nothing more, nothing less.
Consumer appraisals are performed in front of you, while you watch. Your piece never leaves your sight, and you leave knowing exactly what you have.
What we do
Services performed at the lab.
- Pre-purchase evaluation
- Post-purchase confirmation
- Appraisal for insurance purposes
- Diamond certification
- Appraisal for liquidation
- Tax appraisal services
- Colored stone identification
- Diamond mapping of inclusions
Credentials
The letters behind every report.
Our staff holds the credentials that matter in gemology and appraisal practice.
Our clients
Trusted by the trade and the public alike.
- Banks
- Diamond wholesalers
- Online sellers
- Retail stores
- TV jewelry sellers
- The retail-buying public
By appointment · Babylon, NY
Know exactly what you have.
Appraisals are performed in front of you, by appointment, by GIA graduate gemologists. One call books it.