Investment Grade

The Rarest Stones.

Beyond our collections, we procure investment-grade loose stones for collectors who require specific provenance, cut, and character. Each stone is accompanied by full certification and historical documentation.

Investment-grade gemstones
5ct+

Colombian Emerald

Extremely Rare

Muzo and Chivor mine emeralds with exceptional depth of colour. Each stone accompanied by full GIA or SSEF certification.

3ct+

Burmese Ruby

Exceptionally Rare

Mogok Valley rubies with pigeon's blood saturation. The most sought-after ruby in the world. Provenance documentation included.

5ct+

Kashmir Sapphire

Virtually Unobtainable

Kashmir sapphires with velvety cornflower blue. Among the rarest gemstones on Earth. Each piece comes with historical provenance.

5ct+

Type IIa Diamond

Extremely Rare

Flawless Type IIa diamonds with exceptional light return. The rarest diamond category, representing less than 2% of all diamonds mined.

Provenance

Every Stone Has a History.

We do not simply source stones. We trace them. From the mine to the market, from the cutter to the collector — every investment-grade stone in our archive carries full provenance documentation.

This is not a marketing claim. It is a requirement. Every stone must be authenticated by GIA, SSEF, or an equivalent independent laboratory before it enters our collection.

What We Provide

  • Full GIA or SSEF certification
  • Historical provenance documentation
  • Mine-of-origin verification
  • Independent appraisal
  • Lifetime authentication guarantee