This natural Multicolor Black Opal originates from Ethiopia and its weight is about 2.5 carats. The measurements are 13.01mm x 8.32mm x 4.76mm (length x width x depth). The shape/cut-style of this Black Opal is Oval Cabochon. This 2.6ct Black Opal gem is available to order and can be shipped anywhere in the world.
Smoke treatment is a relatively old method of stone treatment that has just recently been reinvented. The process involves wrapping opals into silver foil strips and slowly heating them, allowing the buildup of smoke inside the foil. Carbon formed by the smoke, penetrates deep into the opal stone and stains the original color with deeper and darker tones. Smoke treatment is intended to give the opal brighter play of color, because the bright colors contrast better on darker backgrounds. More about treatments
About Black Opal
Black Opal is considered the most valuable of opal varieties. Black Opal contains traces of iron oxide and carbon elements not found in other common opals. These combined elements give black opal the unique color properties it is famed for. Black Opal is mainly found in Lightning Ridge of NSW, Australia. In 2008, New South Wales declared Black Opal as its Official State Gemstone.
Ethiopia is also known to produce treated black opal. The Ethiopian black opal is treated with a smoking process that darkens the color of the opal. The treatment enhances the play of color, rivaling some of Lightning Ridge’s opals. The treated Ethiopian Black Opal is a great value because it sells for much less than Australian Black Opal.
Items ordered were fantastic but, I received a note with the order about shipping. Am I being charged more for shipping? I realize the items were shipped from Thailand but if there are extra shipping charges please inform me beforehand.
I ordered a beautiful opal from Gemselect but what I recieved in my mailbox was an envelope torn open with only the packing slip inside. My first thought was theives but after talking to my post office I learned that the envelope and stone were destroyed in one of their machines and the mail carrier just put the package with no explaination in my box. I wasn't quite sure what to do at this point; I needed the stone quickly but couldn't afford to simply order a new one and I didn't know who...
My wife and I love Gemselect. We have bought Spinels, and Kyanite. The stones arrived sooner than expected and matched perfectly the description. A little back ground , My wife is a G.I.A/G.G. with 15yrs plus in the industry. She has worked at Cartier's (Madrid Spain) along with 3 highend retail stores in So. California. She was blown away by the prices when I found this great company. Highly Recommend. Sincerely, Mr. Richard...
I'm very pleased with the stone I received from Gem Select. The price is right, it came very quickly, and was packaged well. It even came in a small bag that listed the weight, quality etc. My only complaint is the inefficient way I had to find the specific bank for my credit card. Kind of old-school, but what the heck. The stone is beautiful and the website super easy to navigate. I recommend this company,