Sourcing Rare Gems
Earth-mined, individually selected, and evaluated in the Pieter Andries Diamond and Gem Laboratory, accredited by the American Gem Society.
Natural Gems & Diamonds
Every diamond and every gemstone Pieter Andries sets is earth-mined. The maison works in nature's gemstones because rarity is beauty. A gemstone the earth made once cannot be reproduced.
The difference matters at every level — in performance, in value, in what the piece carries forward. A piece set with a natural gemstone is the only piece of its kind in the world.
Conflict-Free Is the Starting Standard
Our collection is curated through our established partners, cultivated over 60 years, and we hold to conflict-free, Kimberley Process–compliant, ethically mined sourcing as a foundation. Where origin documentation accompanies a gemstone, we retain it; where a gemstone's origin cannot be established, our own due diligence and decades of relationships stand behind it.
See the Gemstones in Person
We hold a curated collection of earth-mined, scientifically cut gemstones in our Southlake showroom. Book a private appointment in The Diamond Room to view the gemstones, or begin a Commission to have one sourced for you.
BOOK A PRIVATE APPOINTMENT