Emerald Colombia Round Cut .57ct

$299.00

Availability: 1 in stock

SKU 210000005166 Category

Stunning .57 ct Emerald from Colombia,

VIDEO emerald round .57

Certificate:…………None
Chemical Formula:…….Be3Al2Si6O18
Shape, Cut:………….Round
Size:……………….5.28 x 3.40mm
Weight:………………57ct
Color:………………Green
Hardness:……………7.5 – 8
Refractive Index:…….1.57 – 1.58
Transparency:………..Transparent TO Translusent
Double Refraction:……..006
Mineral Class:……….Beryl (Emerald)

Emerald, the green variety of Beryl, is the most famous and valuable green gemstone. Its beautiful green color, combined with durability and rarity, make it one of the most expensive gemstones. Deep green is the most desired color in Emeralds. In general the paler the color of an Emerald, the lesser its value. Very pale colored stones are not called Emeralds but rather “Green Beryl”. They are sometimes heat treated, which causes their color to turn blue and transform into Aquamarine.

Emeralds are notorious for their flaws. Flawless stones are very uncommon, and are noted for their great value. Some actually prefer Emeralds with minute flaws over flawless Emeralds, as this proves authenticity. Flaws are often hidden by treating the Emeralds with oil or synthetic lubricants, and this is a common practice in the industry. Though Colombian Emeralds have traditionally been the highest quality Emeralds with the finest green color, a new source of Emerald from the African country of Zambia has been producing deep green Emeralds with fewer flaws.

Weight5 oz

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