Grade AAA - antique cushion Black Onyx 8.00 x 6.00 mm to 10.00 x 8.00 mm

This Natural Black Onyx Gemstone in the AAA Grade, Displays a Velvety Black Color with Even Color (as image shows). This loose Black Onyx gemstone has been cut and polished to a high lapidary standard with a very good cut, symmetry and polish. Black Onyx gemstones are usually sourced from India and China and are traditionally dyed to improve color saturation and evenness.
NOTE: Be sure to select the RIGHT gemstone/diamond by millimeter size only. Selecting your gemstone/diamond by carat weight is NOT ACCURATE. The best way to select the right size gemstone/diamond is to use our size chart image or consult with a local jeweler to measure your setting or gemstone.
CLICK HERE FOR A SIZE CHART TO PRINT OUT (*Please set your PDF viewer to 100% for accurate results)
(*Please set your PDF viewer to 100% for accurate results)
Please contact us if you have any questions.
NOTE: The carat weights of the Grade AAA Onyx Antique Cushion calibrated gemstones listed here are only approximate weights. The actual carat weight of the Antique Cushion Onyx you receive can be more or less than the listed carat weight. Calibrated Antique Cushion shaped Onyx Gemstones are based on dimensions, not carat weight.
NOTE: The image is highly magnified and enlarged. All imperfections that might be seen in the image, are in most cases not visible to the eye when viewed in normal lighting conditions.
NOTE: Calibrated standard sized gemstones/diamonds are very carefully graded by our grading experts, so that every Grade AAA Onyx is very similar and virtually identical in color, clarity and cut. The image you see is not the actual gemstone you will receive, but one chosen by professional grading experts.