Sapphire is a gemstone, a variety of the mineral corundum, an aluminium oxide It is typically ... Blue sapphires with up to 15% violet or purple are generally said to be of fine quality. ..... Neal; The production and identification of artificial precious stones in Annual Report of the Board of Regents of the Smithsonian Institution, ...
Apr 13, 2015 ... Purple Sapphires are the least well known sapphire varieties and the ... Take A Look At Our Identification Chart For Indications Of Treatments ...
For example, green Sapphire was called "Oriental Emerald". The practice of applying the name of a different gemstone to identify the sapphire was misleading, ...
Everything you ever wanted to know about sapphire gems. ... Colorless, white, gray, blue, blue-green, green, violet, purple, orange, yellow, yellow-green, .... See our article on identifying the origins of corundum gemstones for more information.
Sapphire, a member of the corundum family of gems, exhibits a broad color range. Impurities in clear corundum tint the naturally colorless stone yellow, green, ...
In antiquity, any blue stone such as lazurite, was called Sapphire. .... orange, red- orangy, orangy-pink, pink-purple, hot pink, and padparadscha colour are beryllium treated. ... Herve Nicolas Lazzarelli, Blue Chart Gem Identification ( 2010).
These precious stones can dazzle onlookers as they have the ability to naturally change color as lighting ... Identification: Natural Unheated Purple Sapphire.
Dec 23, 2006 ... Read about sapphire gems and jewelry at Gemselect. ... color-specific names, such as yellow sapphire, green sapphire or purple sapphire. ... Identifying Sapphire; Sapphire Origin; Buying Sapphire; Sapphire Gemological ...
Nov 29, 2013 ... Color Change Sapphire Gem Information, learn about color change sapphire ... Typically, most color change sapphire shifts from blue under natural daylight to a violet-purple ... Identifying Color Change Sapphire Back to Top.
Sapphire is one of the Big 3 of jewelry colored gemstones—the other two are ruby ... Pink sapphires range from red to purple with weak to vivid color saturation ...