[Item 12563752] Tanzania Color-Change Winza Sapphire, 0.621ct Loose

Sapphire, a famous gemstone known to all. Mineralogically, it is the same corundum as ruby, but all corundum that is not red is called sapphire. It is also known for having a wide variety of colors, including blue, pink, yellow, and green. This is a sapphire from Winza, Tanzania. Winza sapphires are not widely distributed in the market, making them a known origin among gem collectors. Tanzania is also known as one of the world's leading gem-producing countries, yielding many beautiful gemstones such as spinel and tanzanite, and its sapphires also produce attractive crystals.

・Type: Loose stone (natural stone)
・Gem name: Color-change Winza Sapphire
・Weight: 0.621ct
・Size: 4.6×4.5mm
・Shape: Emerald Cut
・Scratches/Chips: S
・Inclusions: -
・Remarks: Usually heated.
　*While sapphires are generally heated, this particular item was not conclusively determined to be heated based on standard inspections such as microscopy. Advanced testing by a gemological institute is required to definitively determine whether it is heated or unheated.
・Accessories: Identification report (JTL (Jewel Trading Laboratory)), loose stone case (if it doesn't fit, a clear zip case)

▷Jewelry Customization Available
If you would like to customize your jewelry, please order from the link below along with your desired setting.
・【Choose from stones】Simple Order
・【Choose from stones】Semi-Order
*If you would like an image of the stone on a setting, want 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 eligible.

※ We strive to ensure that the photos are the same color as the actual product, but due to lighting conditions during shooting and your monitor environment, the actual product may look slightly different. Also, some photos may be taken using a penlight.

※ For products with UV fluorescence photos, we use a 365nm blacklight for shooting. If you use a light with a different wavelength (e.g., around 395nm), the fluorescence may appear weak or be difficult to confirm. The blacklight we use can be found here.

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

※ For other frequently asked questions, please see here.


karatz_item_id: 12563752