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A vibrant yellow sapphire in an almost princess-style cut.Measuring 5.1 x 3.9mm, this untreated stone weighs just over half a carat and has bright,...

An unusual baguette-cut sapphire from Sri Lanka with interesting internal inclusions.Measuring 10 x 3.3mm.

Intense red ruby with some inclusions, 1.26 carats. Perfect for a solitaire ring, or to be paired with side stones.

Baguette step cut ruby, 0.81 carats, lovely red colour.

Pink sapphire or ruby, emerald cut with a slightly subdued red colour and lovely character. Even tone throughout, weighing 0.79 carats.

Emerald shape garnet in a radiant cut with berry undertones. Really lovely colour.

Fancy cut, asymmetric shape, would pair well with similarly coloured stones in a design. Step cut, 2.30 carats.

Very geometric parallelogram shape in a raspberry hue.

Umber garnet with a very nice shape, lovely step cut, and vivid red undertones. Would look great as a centre stone for a solitaire ring.

Emerald cut garnet, very deep blood-red colour with lovely flashes of vibrant red.

Lovely geometric rhodolite garnet in a step cut, very modern shape, 1.69 carats.

Strong fancy cut shape, loosely based on a shield rhodolite garnet. Just under 2.5 carats, an asymmetric geometric shape with raspberry undertones ...

Geometric fancy cut, would work well lined up with other garnets of similar colour for a ring.

Emerald cut garnet, deep red claret colour, sleek shape and well proportioned.

Emerald cut with a smaller table than usual, very deep, dark red colour with a gothic look. Would do well as a centre stone.

Emerald cut garnet with very deep red blood tones, would look lovely as a solitaire ring.

Strong shield shape with intense red flashes, lovely robust form.

Princess cut peridot from Fuli Gems in China. These stones are approximately 5mm each. They have an intense green colour and would sit beautifully ...

These sapphires from Malawi have quite a shallow profile and a deep blue colour. They were responsibly sourced from an artisanal gem mine.

A large, emerald cut, blue/green sapphire that was responsibly sourced from an artisanal gem mine in the Chimwadzulu area in Malawi.

This is an ethically sourced and fully traceable sapphire from the Chimwadzulu mine in Malawi. It has a little damage on two corners that can easil...

A beautifully graduated ametrine (amethyst-citrine blend), this 11.13-carat gem shifts from soft yellow at one end to a pale purple at the other.

A large 10-carat quartz with dramatic colour zoning: amethyst purple on one side blending into a yellowish-clear band.

Large emerald-cut lemon quartz with a gentle yellow hue. Bright and sunny in tone.

Lovely blue sapphires from Malawi. Total carat weight: 0.82ct

An intense natural green tourmaline in baguette cut, just over 3 carats. Bold lines and saturated colour.

A fancy-cut garnet from the Moyo Project in Tanzania.