Tanzanian Windsor Sapphire (Brown Sapphire) 1.137ct Loose Stone with Gemstone Identification Report

Sapphire, a well-known gemstone. Mineralogically, it is the same corundum as ruby, but all corundum that is not red is called sapphire. It is also known for its diverse color variations, including blue, pink, yellow, and green. This is a sapphire from Windsor, Tanzania. Windsor sapphires are not widely circulated in the market and are known among gem collectors as a unique origin. Tanzania is also known as one of the world's leading gem-producing countries, producing many beautiful gemstones such as spinel and tanzanite, and also yields attractive sapphire crystals.

This Windsor sapphire has a translucent reddish-brown color. Although inclusions are noticeable due to the maximum 44x magnification, they are not noticeable to the naked eye. An appraisal certificate is included.

・Type: Loose stone (natural stone)
・Stone name: Windsor Sapphire from Tanzania
・Weight: 1.137ct
・Size: 6.7×5.2mm
・Shape: Oval cut
・Scratches/Chips: S
・Inclusions: S-A+
・Notes: Typically, heating has been performed.
　*Sapphire is generally a heat-treated gemstone, but this product has not been definitively determined to be heated through standard inspections such as microscopes. High-level inspections by a gemological laboratory are required to definitively determine whether it is heated or unheated.
・Accessories: Appraisal certificate (JTL (Jewel Trading Laboratory)), loose stone case (clear case with zip if it doesn't fit)

▷Jewelry customization available
If you would like jewelry customization, please order from the link below along with your desired setting.
・【Choose your stone】Simple order
・【Choose your stone】Semi-custom order
※If you would like an image of the stone on a setting, would like to discuss a full custom order, or have any other questions, please feel free to contact us here.
※Rough stones are not eligible. Also, some stones may not be supported.

※While we strive to ensure that the photos show the exact same color as the actual product, due to the lighting conditions during shooting and the monitor environment you are using, the actual product may look slightly different. In addition, some photos may be taken using a penlight.

※For products with UV fluorescence photos, they are taken using a 365nm wavelength black light. If you use a light with a different wavelength (e.g., around 395nm), the fluorescence may appear weak or be difficult to confirm. The black light we use is here.

※For information on scratches/chips, treatments, and inclusions, please see here.

※For other frequently asked questions, please see here.


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