A.S Gems

Depending on the conditions in which it formed, opal may be transparent, translucent, or opaque, and the background color may be white, black, or nearly any color of the visual spectrum. Black opal is considered the rarest, while white, gray, and green opals are the most common.

Opal is an amorphous form of silica, chemically similar to quartz, but containing 3% to 21% water within its mineral structure. Gem grade opals usually have 6% to 10% water content. Opal is a sedimentary stone. Under the proper conditions, water percolates through the earth, becoming rich in dissolved silicates.

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Opal AAA quality all size available  top quality cabochon quality according price 

Opal, a crystalline gem mineral, takes form through the solidification of gelatinous or liquid silica within cracks and voids, often created by decaying organic matter, wood, crustaceans, and bones. Its highest value resides in its “black” forms, embodying a significant water content.

Glossy opal gemstones are known for their captivating play of color, often displaying a range of vibrant hues like blue, green, red, and yellow when viewed from different angles. Opals have a unique internal structure that diffracts light, creating this colorful effect, known as "opalescence."