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Our stock

A curated stock of natural, untreated precious stones from 2 to 15 carats, each certified by an independent laboratory, to see in private in Geneva or by video call.

Burmese ruby of 7.58 carats set in a ring between two half-moon diamonds — **Burmese ruby, 7.58 ct**Unheated, pigeon's blood, set in a ring with two half-moon diamonds. Certificate: GRS.

Ceylon sapphire of 7.70 carats surrounded by diamonds in a white gold ring — **Ceylon sapphire, 7.70 ct**Cornflower blue, unheated, set in a ring with a surround of diamonds. Certificate: GRS.

Colombian emerald of 8.41 carats in a Van Cleef & Arpels ring between two pear-shaped diamonds — **Colombian emerald, 8.41 ct**Minor oil, emerald cut, in a Van Cleef & Arpels mounting with two pear-shaped diamonds, yellow gold.

Blue sapphire from Sri Lanka of 8.19 carats, octagonal step cut — **Sri Lankan sapphire, 8.19 ct**Blue, unheated, loose. Certificate: GRS.

Mozambique ruby of 3.10 carats, cushion cut — **Mozambique ruby, 3.10 ct**Pigeon's blood, loose. Certificate: GRS.

Colombian emerald of 4.81 carats, sugarloaf cabochon, surrounded by round and marquise diamonds — **Colombian emerald, 4.81 ct**Minor oil, sugarloaf cabochon, surrounded by round and marquise diamonds.

Some examples from our stock.

We keep a curated stock of natural, untreated precious stones from 2 to 15 carats, each certified by an internationally recognised laboratory: loose stones, as well as stones mounted in contemporary, vintage and antique settings. Among them:

Unheated sapphires from Kashmir, Burma, Sri Lanka and Madagascar
Unheated rubies from Burma and Mozambique
Emeralds from Colombia and Zambia
Spinels from Burma and Tanzania
Paraíba tourmalines from Brazil and Mozambique

We also always have a few exceptional stones that we show on request. And if the perfect stone is not in our stock, we can find it at very good prices through our partners around the world.

Come and see them in private in our Geneva office, or ask for a presentation by video call.

Book a viewing Stones on request

Our stock

Meet us in Geneva