What Is Jade Gemstone | Jade Stone - GIA
Jade has its cultural roots in the smoke-dimmed caves and huts that sheltered prehistoric humans. Around the world, Stone Age workers shaped this toughest of gems into weapons, tools, ornaments, and ritual objects.
Jade Description - GIA
Modern gemologists use the word “jade” as a generic term for both nephrite and jadeite. These minerals have been linked throughout history.
Jadeite Jade Quality Factors - GIA
Other highly valued jade varieties include “kingfisher jade,” with a green color that’s only slightly less vivid than Imperial; “apple jade,” which is an intense yellowish green; and “moss-in-snow jade,” which is translucent white with bright green veining, patches, or spots.
What Is Jade Gemstone | Jade Stone - GIA
Jade is an umbrella term for two gem materials: jadeite and nephrite. Both can be shaped into exquisite carvings or decorative objects.
The Evolution of Chinese Jade Carving Craftsmanship | Gems
1986年3月1日 · Three types of automated CNC engraving and milling machines are mainly used for jade carving: three-shaft, four-shaft, and five-shaft. The number of shafts represents the degree of processing freedom and in turn the quality of the resulting curved surface details.
Black Nephrite Jade from Guangxi, Southern China | Gems
2014年10月31日 · Characterizes black nephrite from a deposit in the Guangxi region that appears to be part of a large-scale jade formation belt in southern China. Gem Encyclopedia Birthstones
Jade Buying Guide - GIA 4Cs
2014年3月17日 · Find out these obscure facts and more with our exclusive Jade Buying Guide, which we’ve created as an infographic for our readers’ convenience. It’s packed with practical tips and quality factors to consider during the buying process, as well as answers to a few commonly asked questions we’ve heard bandied about over the years.
Guatemalan Jadeite Jade: Rough and Finished - GIA
2024年5月3日 · As Guatemalan jadeite jade gains popularity among both Western and Asian consumers, more gem artists are using this material to show their creativity. World-renowned sculptor Georg Schmerholz brought an outstanding collection of …
Japanese Jadeite: History, Characteristics, and Comparison with
Some of the world’s earliest jadeite jade artifacts emerged from the Olmec, Maya, and Aztec civilizations of modern-day Mexico and Guatemala, which flourished from about 1200 BC until the Spanish conquest in the 16th century (Foshag and Leslie, 1955; Umehara, 1971; Taube, 2004).
GIA Gem Encyclopedia | Complete List Of Gemstones
“Jade” is a generic term for nephrite, jadeite, and under certain conditions green omphacite. In China, a pierced jade disk is a symbol of heaven.
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