What is The Black Spinel Gemstone

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Ever spotted a black gemstone and thought ‘that would be the ideal look for my latest collection of rings’? We’ve got just the thing for your latest designs. Black gemstones have made a resurgence in popularity, and, although you may have used deeply coloured rubies and sapphires before, you might not have come across naturally occurring black spinel gemstones. Get to know … [Read more...]

Introducing Our Swarovski® Gemstone Range…

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The team at Cooksongold is pleased to share our exciting new range of Swarovski Genuine Gemstones and Created Stones! The established Swarovski brand solidifies the expert and high quality requirements that are so important to Cooksongold’s stock, allowing us to help you create beautiful jewellery, time and time again. Discover more about our new range of Swarovski Genuine … [Read more...]

Gemstone Focus: What is amber and how is it formed?

Natural Amber, Round Cabochon (61AB BPMA) Amber is probably one of the most easily recognisable ‘gemstones’ in existence – and I use the term ‘gemstone’ very loosely, because amber is in fact not a stone at all but an organic plant resin which has become fossilised over millions of years. The distinctive warm yellow/orange colour of the raw amber stone is quite unlike any … [Read more...]

Gemstone Focus: Cubic Zirconia

What is cubic zirconia (CZ)? Cubic Zirconia, or CZ as it is widely known, is a man-made diamond substitute which displays many of the desirable features of a diamond without the expensive price tag. The CZ diamond was first developed in the 1970s and has since gone on to be exceedingly popular with consumers wanting a little bit of sparkle. White CZ Stones CZs are actually … [Read more...]