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Showing 53 results for "red beryl"
A round, bright red gem displayed on a dark gray background. Article
The Red Hot Gems of Summer

These red, pink and orange hued gems evoke passion and excitement – and are surefire accessories for sultry summer days.

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4.29 ct color-treated Fancy brown-pink diamond
Treated Pink Type IIa Diamond Colored by Red Luminescence

A type IIa color-treated diamond was graded as Fancy brown-pink under daylight conditions and Fancy purplish gray under incandescent lighting, a color change that resulted from HPHT annealing and irradiation.

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Two Treated-Color Synthetic Red Diamonds Seen in the Trade

Two dark brownish red faceted stones, recently submitted to the GIA Gem Trade Laboratory for standard origin-of-color reports, were found to be treated synthetic diamonds.

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Treated-Color Pink-To-Red Diamonds from Lucent Diamonds Inc.

Using a multi-step process, Lucent Diamonds has developed a new treatment process for certain natural diamonds that creates colors from pink-purple through red to orangy brown.

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Three Notable Fancy-Color Diamonds: Purplish Red, Purple-Pink, and Reddish Purple

The description and properties of three fancy-color diamonds auctioned at Christie's.

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Fancy Color Diamond Article
Fancy Color Diamond Description

Fancy color diamonds come in almost any color you can imagine. Red, green, purple, and orange are generally the most rare, followed by pink and blue. Yellows and browns are the most common fancy colors, but they’re generally less valuable than the rarer colors.

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Spring 1993 G&G Lab Notes

This section, from the Spring 1993 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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Fall 1998 G&G Lab Notes

This section, from the Fall 1998 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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Fall 1990 G&G Lab Notes

This section, from the Fall 1990 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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Spring 1987 G&G Lab Notes

This section, from the Spring 1987 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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