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Black Onyx Rings
Onyx, sard, and sardonyx are all varieties of chalcedony (microcrystaline quartz). Onyx comes in brown,
white, grey, and black. Sard is a reddish-brown variety. Sardonyx is a blend of sard and onyx with the red bands of sard and
the white bands of onyx. Onyx, Sard and Sardonyx all have a hardness rating of 7. Onyx is very similar to agate. Onyx
has straight bands of brown, white or black; agate has curved lines of many colors.
Since ancient times, Onyx has been dyed to improve it's color. Black Onyx sold
today is most often clear agate that has been dyed black.
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Very nice commercially cut 8x10 oval cab set in a serrated bezel and mounted on a size 7, hammered sterling
silver band.
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Attractive commercially cut 6x8 oval, bezel mounted and set on a size 9 hammered sterling silver ring.
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Petite 4x6 commercially cut oval set on a size 10 hammered sterling silver band. Exquisite little ring!
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Very nice 8x10 oval of black onyx that I mounted in silver with a little embellishment and mounted on a very cool handmade
size 8 split shank ring.
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Amazing 14 mm round cabochon with a mirror-like finish mounted on a fancy hand-made size 8 split shank pure sterling
silver ring. I had a really hard time taking a photo of this incredible cab because it kept reflecting any light source in
the room!
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