Boulder Opal Silver Necklace Galaxy Natural Australian Gemstone gift christmas

18K yellow gold plated silver necklace with natural Boulder Opal with blue, green and red opalescence opal origin - Australia weight of the necklace - 4.37 grams necklace height - ...

Silver pendant with natural Boulder Opal gemstone origin - Australia opal measurements - 0.16 x 0.43 x 0.83 in / 4 x 11 x 21 mm opal weight - 19.45 carats pendant length - 1.3 in / 3...

Boulder Opal and Diamond White Gold Pendant Necklace. This Boulder Opal and Diamond Pendant Necklace is made in 14k white gold. A freeform, bright and colorful Boulder Opal with fl...

Black opals from the Lightning Ridge mines in Australia are the rarest and most valuable opals on earth. And Lightning Ridge black opals that display a vivid red flash are the most valuable opals of all. This pendant is a perfect example of why these rare, precious opals are so coveted. With a superb cut and gleaming high polish, this solid (not a double or a triplet) Australian black opal from the Lightning Ridge mines has an organic, loosely triangular form and weighs approximately 2.42 carats. The gem flashes brilliant, vivid red, yellow, turquoise, purple and cobalt blue. The natural beauty of the stone has been maximized to its most magnificent potential by a skilled lapidary artist. Set within a custom 18k yellow gold frame -that exposes the rear of the opal, so that you can see with your own eyes that this is a solid black opal- and featuring a bail set with a .03ct VS brilliant round diamond. A 20" .4mm solid 18K Italian gold chain...