This stunning Lightning Ridge Black Opal is set in an 18k yellow gold bezel on a sterling silver backplate. The opal measures 22 mm by 12 mm. It is accented with a 4 mm Pink Tourmaline set in 18k yellow gold. Chain not included. Opal Jewelry With Gemstone Accents For Formal Occasions, Formal Opal Jewelry With Gemstone Accents, Unique Oval Gold Gemstones, Gold Tanzanite Jewelry With Bezel Setting, Elegant Opal Jewelry With Bezel Setting, Luxury Opal Cabochon Jewelry, Elegant Ethiopian Opal Jewelry With Gemstone Accents, One Of A Kind Oval Yellow Gold Jewelry, Gold Jewelry With Gemstone Accents And Oval Cabochon