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A deep red-pink, berry-coloured oval garnet from the Moyo Project in Tanzania.Measuring approximately 12 x 8.7mm and weighing just over 5 carats, t...

Absolutely stunning gothic / 1920s-esque, Tanzanian garnet with lots of red flashes. The stone has a beautiful, vintage cut and would look very imp...

At over 6.5 carats, this stone has vibrant magenta flashes, well cut and proportioned. Somewhere between an oval and cushion cut.

A pretty pear-shape tourmaline in autumnal hues.

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

A pretty amethyst heart. Great size for a pendant.

A great stone for a cocktail ring or pendant. This gem is from the Moyo Project. The shape is a symmetrical down the longest length - like a shield...

A round, bright yellow citrine from the Moyo Project

A statement piece, this stunning golden-brown stone is just shy of 12 carats. Oval-cut and full of depth, it would make a great cocktail ring.

Pair-cut green tourmaline with lovely proportions and even, rich saturation.

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

A pretty, marquise cut, red garnet which was responsibly mined by a member of the Tanzanian Women Miners' Association (TAWOMA) in the Tanga region ...

A bold purple amethyst in a step-cut geometric shape.

A stunning, marquise garnet with a deep pink / raspberry hue, which was responsibly mined by a member of the Tanzanian Women Miners' Association (T...

At over 5 carats, this oval green sapphire from an artisanal mine in the Tanga region of north-eastern Tanzania is both big and beautiful. This out...