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1Black diamond
Courtesy2
Dinny Hall Opal

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Dinny Hall Opal
Credit: CourtesyOpals make the prettiest engagement rings.
3Pink sapphire
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4Emerald
CourtesyMake an impact with this dazzling emerald.
Emerald ring, POA, Catherine Best
5Pink tourmaline

Made up of five pink tourmaline stones, this beautiful ring is sure to impress both its wearer and admiring eyes.
Pink Tourmaline ring, £3,750, Anna Sheffield
6Pearl
CourtesyMateo's pearl ring is the perfect choice for an understated bride-to-be.
Peral ring, £335, Mateo
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7Grey diamond
CourtesySet in classic gold and surrounded by white diamonds, this ring is simply stunning.
Grey diamond, from £590, Diorah Jewellery on Etsy
8Amethyst

Why stick to one gemstone when you can have several? Cartier's amethyst, sapphire and gold ring is a playful choice.
Amethyst ring, £2,450, Cartier
9Rose Tahitian Pearl
Courtesy of brandThis rose Tahitian pearl ring is modern and unique, set in a square gold ring with a pink sapphire stone.
Tahitian pearl ring, £2,150, Winterson
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10Sapphire
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