◂ BACK TO GEM ENCYCLOPEDIA
Ruby
Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire.
See Gem As
Tools
Research
Books: Jewels of Ancient Nubia
Review of Yvonne J. Markowitz and Denise Doxey's Jewels of Ancient Nubia.
Coated Lawsonite Pseudomorphs Presented as Chromian Lawsonite
Samples composed of lawsonite pseudomorphs were coated to make them appear deep green and imitate chromian lawsonite crystals.
Flame-Fusion Synthetic Ruby Boule with Flux Synthetic Ruby Overgrowth
This synthetic ruby specimen features two growth methods within the same crystal.
Books: Ruby & Sapphire: A Collector’s Guide
Review of Richard Hughes’s Ruby & Sapphire: A Collector’s Guide.
Flux-Grown Synthetic Ruby with Hydrothermal Synthetic Seed Crystal
An unusual synthetic ruby, combining a hydrothermal ruby seed and flux ruby overgrowth, is examined at the Carlsbad lab.
Mogok Expedition Series, Part 3: The Market and the Stones
An inside look at Mogok's gem markets and cutting industry.
Mogok Series, Part 2: The Expedition, the Mines, and the People
An expedition to Mogok, Myanmar, documenting the current state of their ruby mining, markets, and cutting industries. This exotic land, known as the "Valley of Rubies," is one of the world’s most famous gemstone sources.
Mogok Expedition Series, Part 1: The Valley of Rubies
An expedition to the Mogok area of Myanmar documenting the current state of their ruby mining, markets, and cutting industries. This exotic land, known as the "Valley of Rubies," is one of the world’s most famous gemstone sources.
Update on Gemstone Mining in Luc Yen, Vietnam
Explores the emergence of the Luc Yen area as a producer of corundum, spinel, tourmaline, and other colored stones.
Rubies from the Montepuez Area
In October 2013, GIA’s Bangkok laboratory produced a study of the samples collected during the September 2012 expedition.
Winter 2012 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.
Summer 2012 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.
