National
Gemological Laboratory

Italian

Laboratory

Gemmologico

NGL IDENTIFIES, CLASSIFIES and VALUES: Diamonds, Colored Gems, Pearls, Corals, Opals and any other precious stone.

Selected works:

Your diamond
true or synthetic?

Find out with us

Is your color stone natural, treated or imitation?

Find out with us

Perfect Match
for Every Occasion

coordinate with other pieces from the collection for a classic look.

NGL

works both on loose stones and on jewels and mounted stones

Ancient Jewelry Collection

Light in weight   ·   14 Karat gold   ·   Opal

Arquiteqtura Jewelry Collection

Adjustable   ·   18 Karat gold   ·   Hand-crafted

Exuberant Jewelry Collection

19 Karat gold   ·   Pink Opal   ·   Made with love

NGL

upon request we issue a certificate which will report the nature and salient characteristics of the examined stone.