Montana Sapphire (Yogo) 2mm/0.038ct Loose

Montana sapphires began when Dr. J.F. Kunz, a vice president of Tiffany & Co., proved that blue rough stones found in Yogo Valley, Montana, were sapphires. There are several deposits, but this one is from Yogo, which can be said to be the birthplace of Montana sapphires. Yogo mainly produces blue to violet sapphires. The mine is now closed, so it is a rare stone with no new production.

This is a 2mm Yogo sapphire that was purchased directly from a Montana sapphire mine owner in the United States. Yogo sapphire is a particularly rare Montana sapphire. It is a high-quality loose stone with high transparency.

Type: Loose (natural stone)
Stone name: Montana sapphire (from Yogo)
Weight: 0.038ct
・Size: 2.0×2.0mm
Shape: Round cut
・Scratches/chips: S
Inclusions: S
Note: Heating is in progress.
*Sapphires are generally gemstones that have been heated.
・Accessories: Caratz quality guarantee, loose case (if it does not fit, a clear zip case)

▷For more information about Yogo sapphires,
What is Yogo Sapphire? What are the differences with Montana Sapphires, their value, and how can they be identified?


*We try to make the colors in the photos as close as possible to the actual product, but they may look slightly different from the actual product depending on the lighting conditions at the time of shooting and the monitor environment you are using. Also, some photos may have been taken using a penlight.

*For information on scratches, chips, treatments, and inclusions, please click here .

*For other frequently asked questions, please click here .


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