925 sterling silver diamond cut heart stud earrings with an ornate filigree design and a gorgeous faceted solitaire round black onyx stone. These earrings measure 1/2 inch wide by 1/2 inch tall each. Onyx is a variety of chalcedony. For millennia, artisans have carved intricate cameos from black-and-white onyx. Solid black onyxes, faceted or cabbed, are also popular jewelry stones. It is the birthstone for December.
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