A 21ct Natural Opal Pendant
Lot No. ：CCJD-OP-190510
Feature：A beautiful opal*, sapphires and diamonds pendant, size 26x38x16mm.
Weight：21ct/opal, 7.25ct/sapphires, 0.56ct/diamonds, 14.8g/18k white gold.
* Opal is the national gemstone of Australia. Opal was rare and very valuable in antiquity. In Europe it was a gem prized by royalty. Precious opal displays play-of-color (iridescence), common opal does not. The internal structure of precious opal causes it to diffract light, resulting in play-of-color. 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 to be the rarest, whereas white, gray and green are the most common.
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