From Brooke's Supernova Collection, one of a kind 18k Gold Boulder Opal Sun Ray Engraved Necklace with Purple Garnet Halo and White Diamond accents.                  18k Gold Georgian Style Bezel Boulder Opal Necklace with Puprle Garnet Halo and White Diamond accents with hand engraving. - Metal: 18k yellow gold - Center Stone: Boulder Opal, 2.07 ct - Accent Stones: Purple Garnet 0.19 ct, Diamonds, 0.075 ct - Setting Measurements: 21 mm × 19 mm - Design: Georgian-style bezel setting with hand engraving - Necklace type: One of a kind