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Natural gemstones

Gemstonesin full colour

Sapphires, rubies, emeralds, aquamarines and other gemstones, selected for colour, clarity and cut. For every stone we state its origin and any treatment.

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Cut blue sapphires
Sapphire · Ruby · Emerald

Varieties

Stones that give jewellery its colour

Blue sapphires
Sapphire: corundum, hardness 9
Emerald crystal
Emerald: green beryl
Cut ruby held in tweezers
Ruby: red corundum, hardness 9
Ring with a ruby and diamonds
Ruby in jewellery
Cut blue stones
Cut blue stones
Orange gemstone in tweezers
Every stone inspected
Sapphire held in tweezers

Origin and treatment

Everything you need to know about the stone

For every stone we state the variety, the country of origin where known and any treatment. GIA or IGI reports are available for more valuable stones.

Sapphire
Sri Lanka, Madagascar
Emerald
Colombia, Zambia
Ruby
Mozambique, Myanmar
Aquamarine
Brazil

FAQ

Gemstones

Do you state treatments?

Always. Heating of sapphires and rubies or oiling of emeralds are common, but they affect value, so we state them clearly.

Do you offer stones without a certificate?

Yes, for smaller stones and serial jewellery production, with the variety and origin clearly stated.

Contact

Looking for a particular stone?

For questions about diamonds, gemstones, a partnership or custom jewellery, get in touch directly. We will be glad to help.