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sapphire, precious stone. A transparent blue corundum, it is classified among the most valuable of gems. Sapphires are found chiefly in Madagascar, Sri Lanka, and Myanmar and also in Thailand, Tanzania, Australia, Cambodia, and in the United States (in Montana). The sapphires from Kashmir, which is no longer a significant source of the gems, are of a beautiful cornflower blue and are highly valued. The Sri Lankan and Madagascan varieties are paler; those from Montana have a metallic luster; those from Myanmar are a dark royal blue; and the Australian sapphires are of a dark blue shade approaching black. The terms yellow sapphire, purple sapphire, and green sapphire are used alternatively with Oriental topaz, Oriental amethyst, and Oriental emerald for other varieties of corundum. Like rubies of similar structure, some sapphires display a six-pointed star when cut to a cabochon (round-topped) shape and exposed to direct sunlight. Such star sapphires are usually obtained from Sri Lanka. Natural sapphires may be heat-treated to enhance their color. Synthetic sapphires are made by the fusion of aluminum oxide, with titanium oxide added as a coloring agent.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a variety of the mineral corundum (A1203), characterized by its dark or light blue color, which is caused by the simultaneous presence of the impurities Ti and Fe. Sapphire is a precious stone of order I. Star sapphire is characterized by as-terism in the form of a six-rayed star, which is brought about by microinclusions of rutile.

Sapphire deposits are mainly placers and usually contain rubies. Sapphires are found in the Southern Urals in the USSR and in Thailand, Sri Lanka, and India.

Synthetic sapphires that are used in the jewelry industry are obtained in the same manner as corundum. White sapphire is a synthetic colorless corundum that contains less than 0.001 percent impurities and has many specific physical properties that make it very useful in microelectronics, quantum electronics, high-resolution optics, and audio-optics.


Rubin i sapfir. Moscow, 1974.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

What does it mean when you dream about a sapphire?

A precious stone of penetrating cobalt blue, the sapphire is associated with protection (e.g., by the archangel Michael).

The Dream Encyclopedia, Second Edition © 2009 Visible Ink Press®. All rights reserved.


Any of the gem varieties of the mineral corundum, especially the blue variety, except those that have medium to dark tones of red that characterize ruby; hardness is 9 on Mohs scale, and specific gravity is near 4.00.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


September. [Am. Gem Symbolism: Kunz, 319–320]


emblem of sexual purity. [Gem Symbolism: Kunz, 370]
Allusions—Cultural, Literary, Biblical, and Historical: A Thematic Dictionary. Copyright 2008 The Gale Group, Inc. All rights reserved.


a. any precious corundum gemstone that is not red, esp the highly valued transparent blue variety. A synthetic form is used in electronics and precision apparatus. Formula: Al2O3
b. (as modifier): a sapphire ring
2. the blue colour of sapphire
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Showing off her yellow sapphire ring on 'The View', the 41-year-old comedic actress explained that over the weekend, the singer was in another room when her son, who's autistic, kept running back and forth from the room, handing her the cards saying 'Will', 'You' and 'Marry' one after the other, the Mirror reported.
The talk show host announced her engagement with beau Donnie Wahlberg on her today's episode of "The View." She showed off her huge yellow sapphire ring while getting a luxurious manicure done in the Sally Hansen Studio in New York.
Jupiter rules Thursday, symbolised by yellow sapphire ( pukhraj) -- she shows up in yellow or saffron.
White and chocolate diamond necklace, $7,500; 18k gold vine sprout bracelet, $1,850; yellow sapphire bracelet, $12,450; and chocolate diamond curved bracelet, $9,050, Queens' Wreath Jewels.
Right-hand rings: Louis Feraud 18k white gold flower ring with diamonds and yellow sapphire. $1,375: 18k white gold flower ring with diamonds, $1,760: and 18k white gold ring with 7+ ct fancy-cut pink tourmaline, enhanced with diamonds.
Pave diamond 18k white gold "Curve" necklace and earrings, $9,385 and $12,300; pave diamond white gold ring and bangle, $10,950 and $17,800: pave, black diamond 18k white gold bangle, $15,200, and yellow sapphire bangle in yellow gold, $7,800 Queens' Wreath Jewels.
18k rose and white gold diamond octopus pin with ruby eyes; 18k white gold pink tourmaline, yellow sapphire and pink opal ring; 18k white gold sapphire and blue topaz ring.
" Last 2017, Lais wore the $2-million Champagne Nights Fantasy Bra with 6,000 yellow diamonds, yellow sapphires, blue topaz, and 18-karat gold, at the Victoria's Secret Fashion Show.
I capture those green and yellow sapphires with a hilt of diamond.
A reference to his favourite hunting animal, tiger's head in yellow sapphires and black rhodium coated gold adorns the writing instrument's barrel.
The bra and knickers are made up of 6,500 precious gems including diamonds, blue topaz, yellow sapphires and pink quartz, set in 18-carat gold - and took 685 hours to make.
Designed exclusively for the brand by jeweller Mouawad, the bling bra and matching belt are adorned with 4,200 rubies, diamonds and blue and yellow sapphires, all set in 18-carat gold.