[Deadline: Sun, Oct 4, 10 AM: Lottery Sale ②_12] Brazilian Paraiba Tourmaline 0.669ct Loose Stone (CuO: 1.16%, MnO: 4.27%) CGL Certified

Click here to enter the lottery sale.
*Available for purchase during the October campaign.

Paraiba tourmaline is captivating for its unique hue, distinct from both the blue of the sea and the blue of the sky. In Japan, "copper-bearing blue to green tourmaline" is referred to as Paraiba tourmaline, regardless of its origin.
This piece is a Paraiba tourmaline from the Batalha Mine in Brazil. It features a vivid, bright blue color with high transparency. When it catches the light, a fresh, aquatic blue spreads across the stone, showcasing the beautiful coloration unique to Paraiba tourmaline. It contains 1.16% CuO (copper oxide) and 4.27% MnO (manganese oxide). This is a stone that can be appreciated not just for its color, but also for these specific chemical characteristics.
A grading report and analysis report from the Central Gem Laboratory (CGL) are included.

・Type: Loose stone (natural stone)
・Stone Name: Brazilian Paraiba Tourmaline (Paraiba Tourmaline)
・Weight: 0.669ct
・Size: 6.2×4.6 mm
・Shape: Oval cut
・Scratches/Chips: S
・Inclusions: A+
・Notes: Typically heated.
　*Paraiba tourmaline is a gemstone that is generally heated. Since current grading technology makes it difficult to distinguish between heated and unheated, it is described as "typically heated."
・Accessories: Grading report (Central Gem Laboratory (with analysis report)), loose stone case (or a clear zip bag if the stone does not fit)

▷Jewelry processing available
If you would like jewelry processing, please place an order with your preferred setting from the links below.
・[Select by Stone] Simple Order
・[Select by Stone] Semi-Order
*If you would like an image of the stone set in a frame, would like to consult about a full custom order, or have any other questions, please feel free to contact us here.
*Rough stones are not eligible. Some stones may also be ineligible for processing.

* While we strive to ensure that the colors in our photos match the actual items, they may appear slightly different depending on lighting conditions during photography or your monitor settings. Some photos may also be taken using a penlight.

* For items with UV fluorescence photos, we use a 365nm wavelength blacklight. If you use a light with a different wavelength (e.g., around 395nm), the fluorescence may appear weaker or be difficult to verify. The blacklight we use can be found here.

* Please see here for information on scratches, chips, treatments, and inclusions.

* Please see here for other frequently asked questions.
* If paying by credit card, a security company may contact you to verify your identity.



karatz_item_id: 12563477