Untreated

4 mm Princess-cut sapphire. A beautiful sea blue, untreated from Queensland, Australia.

Untreated sapphire in a long cushion cut. Lovely layered greens and dark green shades that shift with movement. Queensland, Australia origin.

Untreated sapphire from Queensland, Australia. Princess cut, 3.75 mm, with green and teal parti colouring.

Selection of untreated Princess-cut sapphires from Queensland, Australia. Each approx. 2.5 mm. Colours range from light green to teal to deep blue.

A very cool, fancy cut sapphire slice from a mine in Queensland, Australia. This piece has some clear, angular colour banding, beautifully highligh...

This gemstone has a slightly elongated, emerald cut with a fairly uniform, deep green colour. The stone comes from an artisanal mine in Australia a...

A gorgeous, green sapphire from Australia, that shows flashes of yellow. This gem would make a fabulous central stone in any ring.

A small, Australian sapphire, responsibly sourced from an artisanal mine in Queensland. At just over half a carat, this is a very pretty and afford...

A spectacular, oval, green sapphire from Australia. This awesome stone deserves a stunning design to show it off.

A beautifully cut, Australian zircon from Queensland. This gemstone has so much sparkle and life.

A responsibly sourced, dark blue sapphire from an artisanal mine in Queensland, Australia. The cut is slightly asymmetrical.

A dark green sapphire from Australia. This stone has a chip on the girdle and the cut is not perfectly symmetrical. Both of these things could be h...

This sapphire has a strong green colour and an unusual cut, making it ideal for a distinctive ring.

A large, pink zircon from Queensland, Australia. This stone has not been treated in any way.

Blue, "roval" sapphires from an artisanal mine in Sri Lanka. The cut sits between a round and oval form. Measuring approximately 6x5mm, these untre...

Responsibly sourced from Queensland, Australia, this untreated yellow and gold zircon weighs 2.00 carats and is cut into a cushion shape measuring ...

Responsibly sourced from Queensland, Australia, this untreated pink zircon weighs 1.90 carats and is cut into a cushion shape measuring 6.7 x 6.7 m...

Spinels in baguette, radiant, and Square cuts, featuring lovely pink hues. Sizes range from 4 to 4.5 mm.

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

An unheated, Sri Lankan, purple sapphire, responsibly sourced from an artisanal gem mine near Pelmadulla in the main gem mining region around the c...

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.

An almost 6-carat oval peridot with a powerful, intense green. Rich saturation.

A pretty pear-shape tourmaline in autumnal hues.

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

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,...

A medium blue, oval sapphire from an artisanal mine in Pohorabawa, Sri Lanka. This stone has quite a few inclusions and some colour zoning, which h...

A set of round rubies from the Rubyfair project in red to red-purple hues.Each stone measures approximately 5mm and weighs around 0.6 carats.

A stunning untreated purple spinel in a marquise cut with a nice ratio.Measuring approximately 9.5 x 6mm and weighing 1.74 carats, this stone has d...

A gorgeous oval spinel in rich raspberry tones with an even, well-balanced colour.Measuring approximately 8.2 x 6.2mm.