4mm Black Spinel Diamond Cut Cube Gemstone Necklace with Clasp – Limited Editions
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Easily add a charm or pendant to this necklace and you are ready to go! This gemstone necklace is finished for you. It is 16.25" long, including base metal clasp, and has a 2" extender.
Spinel is a hard vitreous magnesium aluminum oxide, and comes in a range of other colors, but those varieties are transparent. Black Spinel not only has the dark color, but it is opaque as well, rendering its black especially deep and mysterious. Sometimes called the "Black Prince's Ruby" for its role in the English crown. It has been mistaken for ruby and sapphire at times, but can be distinguished by its structure and its lower relative hardness.