Web Results

en.wikipedia.org/wiki/Sapphire

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, ...

www.minerals.net/gemstone/sapphire_gemstone.aspx

For example, green Sapphire was called "Oriental Emerald". The practice of applying the name of a different gemstone to identify the sapphire was misleading, ...

www.thenaturalsapphirecompany.com/blog/purple-sapphires-tips-for-buying-the-perfect-purple-engagement-ring

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 ...

www.thenaturalsapphirecompany.com/t-education_sapphires

One way to identify a crystal species is by taking a refractive index test. ... Sapphires are mined heavily in gem producing countries, by traditional and ... more than 15% secondary color tones within the stone such as yellow, green or purple.

www.gemselect.com/gem-info/sapphire/sapphire-info.php

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 ...

www.gia.edu/sapphire-quality-factor

Sapphire is one of the Big 3 of jewelry colored gemstones—the other two are ruby ... Purple sapphires are similar in color but darker and always have purple as ...

www.gemsociety.org/article/sapphire-jewelry-and-gemstone-information

Everything you ever wanted to know about sapphire gems. ... Colorless, white, gray, blue, blue-green, green, violet, purple, orange, yellow, yellow-green, brown, golden amber, .... Inclusions can also help identify the source of a sapphire.

www.gemsociety.org/article/sapphire-buying-guide

Loupe clean sapphires require microscopic examination in order to identify the nature and ... A top color 1-carat purple sapphire may cost as much as $570.

www.leaf.tv/articles/difference-between-purple-sapphire-amethyst

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, ...

www.gemdat.org/gem-3529.html

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).