Other Gemstones

Unheated sapphire, rare gemstones, paraiba tourmaline, unheated tanzanite, and large gems. See gemstones differently. Bespoke jewelry design services.
Our selection is very precise, small but coveted.We are not gem dealers. What you see here is a selection of a selection of a selection!
We offer mostly unheated gems for sale. Many are at least 5 carat, meaning they are regarded as investment gems if they satisfy gemological criteria.
We consistently select our gemstones thinking, how will an imaginative mind set this into a memorable piece of jewellery? Before we include a stone for sale here, we always know how we’d like to set it.
We are an ideal choice if you are looking for an interesting stone, and a setting intuitive to that stone.
We curate only natural stones. Every design is built by hand.

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A pair of natural cat's eye chrysoberyl gems weighing 8.8ct and 8.66ct.

The 8.8ct is a cat's eye alexandrite, a variant of its chrysoberyl other half, changing from honey brown to purple brown under incandescent light.

21.79ct Colombian emeralds in a 10-piece lot.

These emeralds have minor or moderate oiling, with good color and lustre, and hence excellent fire.

The lot is considered clean for emeralds.

50 pieces natural tsavorite green garnet weighing 50.85ctw.

These green garnets are that specific garnet known as tsavorites, a green distinct from emeralds, dark enough to be vivid, and to some eyes, with a blueish-green tinge.

A super size rubellite tourmaline at 78.53ct for your imagination.

This rubellite is so much like a Balas Ruby, or spinel, with its palette of red and magenta. The stone is precisely the color of dark red grapes, except vivid.

SIJS, Rare gemstones for sale, untreated aquamarine gemstone, aquamarine gemstone loose, Santa Maria aquamarine, big aquamarine stone, big gemstones for sale

Natural 78.95ct aquamarine for collector and jeweller.

This has been tested to be unheated. Many aquamarines are heated for a deeper blue.

15.25ct natural peach morganite measuring 14.4mm x 17.9mm x 9.89mm.

A soft coloured earth-mined gem, this is not pink but truly peach. It is not faint but truly pastel. If you look at enough morganites, you will know.

Rare heart cut natural alexandrite showing a good color change.

At 7.02ct, this wholly natural alexandrite displays a medium to strong color shift, depending on how vivid the incandescent lighting is.

8.3ct grossular garnet in a soft mint green.

A stone that does not surface often, the mint green grossular garnet is of the tsavorite species.

4 Type A lavender jadeite cabochons weighing a total of 28.71ctw.

The four high quality cabochons are selected for their potential to work into a set of lavender jade jewelry, comprising a ring, pendant and a pair of earrings. The cabochons for the ring and pendant could be switched, depending if you prefer a bigger ring or pendant necklace.

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