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American Gems
 
Color   Rich royal blue to navy blue
   
Gem Family   Royal Kings Plain Sapphire® is a member of the corundum family, which includes both ruby and sapphire.
   
Source   This rare sapphire is mined in the Australian state of New South Wales. The Kings Plain Mine is actually an ancient dry riverbed where sapphire was washed centuries ago from deposits in hard rock somewhere in the area. Most sapphire found in these gem gravels ranges from the size from a grain of sand to a pea. Rarely, larger size gems are found. After an area is mined, the land is reclaimed into lush pastures.
   
Clarity   Ranges from no visible inclusions to moderately included.
   
Size Range   Small accent stones to spectacular 2-carat gems.
   
Shapes Available   Royal Kings Plain Sapphire® is exceptionally well cut for corundum, which is so valuable that many producers sacrifice brilliance for weight. Royal Kings Plain Sapphire® is available in a variety of shapes including brilliant and Portuguese rounds, emerald cuts, ovals, princess cuts, and trillions.
   
Enhancement   Royal Kings Plain Sapphire® is enhanced by heat to remove green overtones from the rich blue color. Heat enhancement is stable, routine, and does not require special care.
   
Lore & History   Sapphire comes from the Greek word for blue, sappheiros, and this gem provides the most beautiful blues of the gem kingdom. The ancient Persians believed the earth rests on a giant sapphire. Its reflection, they said, made the sky blue. Sapphire is the original "true blue": the gem of fidelity and of the soul. In ancient times, a gift of a sapphire was a pledge of trust, honesty, purity, and loyalty. This tradition makes sapphire a popular choice for engagement rings.
   
Toughness & Hardness   Sapphire has a hardness of 9 on the Mohs scale and it is quite tough.
   
Care & Cleaning   Sapphire is among the most durable gemstones. In its common form, corundum is even used as an abrasive! Clean your sapphire with warm water, detergent, and a soft brush. Royal Kings Plain Sapphire® can be put in ultrasonic or steam cleaners.
   
Price Range   $100 to $500 per carat. Exceptionally fine gems can command even higher per carat prices.
   
Special Characteristics   At the Kings Plain Mine, miners move ten cubic meters of earth, a car-size chunk of rock, to find 2 carats of Royal Kings Plain Sapphire®.