1.40 * Carats Natural Colombian Emerald Gemstone

Item Information

Dimensions (mm) 7 x 6 x 4mm
Weight (carats) 1.4 carats
No Treatment

Emerald is a gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6) colored green by trace amounts of chromium and sometimes vanadium.[2] Beryl has a hardness of 7.5–8 on the Mohs scale.[2] Most emeralds are highly included,[3] so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate.

Emeralds, like all colored gemstones, are graded using four basic parameters–the four Cs of connoisseurship: color, clarity, cut and carat weight.   Normally, in the grading of colored gemstones, color is by far the most important criterion. However, in the grading of emeralds, clarity is considered a close second. A fine emerald must possess not only a pure verdant green hue as described below, but also a high degree of transparency to be considered a top gem.[5]

Natural Colombian Emerald Gemstone

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Pricing & Details

Auction ID 931327
Watchers 3 watching
Viewed 558 times
Starts 12th May 2019 12:19pm PDT

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