Unlike many gem minerals, opal does not have a crystalline structure. It is formed by small spherical particles of silica gel, chemically combined with 6-10% water. It is found as veins in rocks or as “grape shape” masses in cavities of rocks. Opal has a hardness of 5.5 to 6.5 Moh’s scale, placing it in the softer range of gemstones.
This exquisite 18k yellow gold ring highlights an oval Black Opal weighing 2.09ct. mined in Australia at Lightning Ridge. A dark blue base with vivid flashes of yellow-green-orange and purple fill out the entire gem.
The wave motif gold ring shank contains .47ct. of ideal cut round diamonds of high clarity and color, that surround the opal in a semi-bezel style mounting.
Fine Gem Black Opal, 2.09 carat with evenly disbursed color set in hand-fabricated 18k ring with .47 ct. VS, E Diamonds
One of a kind, Janet Deleuse
$6,500.00, to purchase: http://www.shopdeleuse.com/products/opal-ring