The Rarest Gemstone of All... Ruby is all about passion - penetrating the heart with color and fire like no other gemstone. Unmatched in legend and seldom rivaled in beauty, it combines the energy of light with the power of fire into a single breathtaking scarlet colored gem. Recognized as the worlds most valued gemstone for centuries, ruby holds the undisputed title as the "King of Gems."
Ruby possesses a color like no other red gemstone. At its finest, the purity of its burning crimson hue inspires us with love and desire. Rubies come in a variety of colors ranging from purplish red to orangey red. Ruby belongs to the same mineral family as sapphire, but if a gem is too light in tone or too purple or orange in hue, it is called a fancy sapphire and not a ruby. The most sought-after rubies are pure red or red with a very slight pinkish undertone. Very fine quality rubies, especially in sizes over 3 carats, are incredibly rare and valuable - much rarer than top quality colorless diamonds.
Birthstone
Ruby is the birthstone for July.
Origins
Some of the finest rubies in the world are mined in Myanmar. Other important sources include Kenya, Pakistan, Sri Lanka, Tanzania, Thailand and Vietnam.
Treatments
Ruby is routinely heat treated to improve its appearance. Heat enhanced rubies are extremely stable. Some rubies may have a glasslike residue left in surface-reaching fissures after they are heated. This glasslike material is not stable, and care should be exercised during the cleaning process.
Care
Rubies are both a hard and durable and can be cleaned using an ultrasonic cleaning machine, any commercial jewelry cleaner or plain soap and water using a soft brush. Rubies with a glasslike residue in surface-reaching fractures should not be cleaned with an ultrasonic or steam machine. Be sure to rinse and dry your jewelry thoroughly after cleaning.
Photo: Robert Weldon, Copyright Professional Jeweler Magazine
Editors Note: This article is © 2002-2013 Jewelers of America Inc.
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