Varying hues of orange, tan, black, and cream colors. Polished to a vitreous (shiny) lustre. Flat, JB-Weld steel epoxy backing for stability; beveled edge for ease of setting. You will receive the exact gemstone shown in photos.
Weight: 16.00 carats
Length: 23.27 mm
Width: 16.21 mm
Height: 5.58 mm
Trade Name(s): Flowering Tube Onyx
Origin: unknown
Enhancement(s): ASBL (backed)
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American Gem Trade Association Gemstone Enhancement Codes
Enhancement: Any treatment process other than cutting and polishing that improves the appearance (color/clarity/phenomena), durability, or availability of a gemstone.
(ASBL) Assembled
Products made of multiple layers or combinations of manufactured and/or natural material fused, bonded or otherwise joined together to
increase stability and/or imitate the appearance of a natural gemstone, create a unique design or generate unusual color combinations.
NOTE: “ASBL” coded stones require special care! Avoid household chemicals, cosmetics, abrasives, and sudden shocks.