[DOC] [TLE] Ruby and Sapphire: Gems of the Mineral Corundum - Geology.com [PAR] Red and blue are just two of the many colors found in gem corundums. ... 
sapphire, and fancy sapphire: Gem-quality corundum is a highly prized and 
valuable... [DOC] [TLE] Corundum: Use as a Gemstone, Abrasive, Refractory - Geology.com [PAR] Red corundum is a ruby, blue is a sapphire, any other color is a fancy sapphire. ... 
sapphire, and fancy sapphire: Gem-quality corundum is a highly prized and... [DOC] [TLE] Sapphire: The gemstone Sapphire information and pictures [PAR] Detailed gem and jewelry information guide about the corundum blue gemstone 
... asterism are known as "Star Sapphire", and these can be highly prized. [DOC] [TLE] How Rare Is That Gem? - International Gem Society [PAR] Rarity is one of the most prized qualities of gemstones. ... The most common of 
the gem grade corundum is blue sapphire. ... Hot pink sapphires and the pinkish 
orange variety know as padparasha do demand a high price in the market place. [DOC] [TLE] What is a blue gem called? | Reference.com [PAR] Blue gems come in many different varieties and colors, with sapphire being the 
most classic and highly prized blue gemstone from the mineral corundum. [DOC] [TLE] What are some different kinds of gemstones? | Reference.com [PAR] Blue gems come in many different varieties and colors, with sapphire being the 
most classic and highly prized blue gemstone from the mineral corundum. All.. [DOC] [TLE] gemstone | mineral | Britannica.com [PAR] Gemstone, any of various minerals highly prized for beauty, durability, and rarity. 
A few noncrystalline ... sapphire, blue; variable other than red. diamond... [DOC] [TLE] Padparadscha Sapphire - This very rare color of sapphire (orange ... [PAR] ... rare color of sapphire (orange / pink / peach) is highly prized by gem collectors. 
... blue to violetish blue Genuine sapphires, part of the Corundum gem family. [DOC] [TLE] Rubies & SapphiresSparkling Reminders of God's Judgment ... [PAR] Apr 1, 2010 ... What took place inside the earth to form these gems and then transport them to 
the surface? ... Some rubies and sapphires are found in high-grade metamorphic 
rocks, ... Flawless, highly prized deep red rubies are seldom larger than three ... 
The world record paid at auction for a blue sapphire is U.S. $3... [DOC] [TLE] Gemstone - New World Encyclopedia [PAR] Emerald (green), aquamarine (blue), bixbite (red), goshenite (colorless), heliodor 
... Diamond is highly prized as a gemstone because it is the hardest naturally ... 
Synthetic corundum stones, including ruby and sapphire, are quite common and
... [DOC] [TLE] Technicals - David Birnbaum / Rarest Gems and Jewels [PAR] Richly colored stones, called fancies, are rare and highly prized. Fancy colors 
include golden-yellow, blue, green, pink, and amber. ... A gem can be called a 
ruby only if it is corundum of a red or purple- red hue and medium to dark in 
shade. [DOC] [TLE] NOVA - Official Website | A Primer of Gemstones - PBS [PAR] Feb 1, 2000 ... Here, see 20 of the world's most prized gemstones, together with the properties 
that ... Aquamarine can range in color from pale to deep blue, and its color fades 
with ... Harder than all other gemstones save diamond and corundum, .... the 
rainbow iridescence that has been highly prized since Roman times. [DOC] [TLE] Sapphire & Ruby - Lambert Industries [PAR] Rubies and Sapphires Are One of the Most Prized Gems ... In terms of beauty, a 
well cut fine quality ruby or sapphire possesses both exquisite color as well as 
brilliance. Beauty ... Sapphires of a color other than blue are called fancy 
sapphires. ... A combination of a good star & a good body color is rare and highly 
prized. [DOC] [TLE] Corundum - Tradeshop [PAR] Medium to dark red stones are known as ruby; other colors, sapphire. Optics -- 
R.I. ... Perhaps the most prized of gemstones in either transparent faceted form or 
chatoyant star rubies. One of ... One of the most popular gemstones in its blue

Question: Highly prized blue corundum gems
Answer: sapphires