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.
This is my second purchase and if it's as great as my first then they will become my gemstone retailer. If my customer's are happy then I am happy then GemSelect will get the extra business. I loved all the items. I do wish that smaller opal facets were available. The Opal facets I received although great were a bit to orange for my customer. I wished they were a bit more opal like. I did have Moonstone's to offer ...
Shipping is faster than anything bought and shipped here in the states. Mine came in 3 days and could be tracked all the way. I did return a gem but had no problems with delivery or refund thank goodness. Customer service was excellent with all my requests. Wanted eyes on to see actual color of gems and Gem Select were extremely helpful. Have used them twice. Very happy both times. Will use again.