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Paraiba tourmaline is captivating with its exquisite hue, distinct from the blue of the sea or the sky. In Japan, it is defined as "copper-containing, blue to green tourmaline (regardless of origin)." It is a gemstone that enjoys enduring popularity.
Batalha, CuO: 2.3%, MnO: 0.6%
・Type: Loose stone (natural stone)
・Gemstone name: Brazilian Paraiba Tourmaline (Paraiba Tourmaline)
・Weight: 0.068ct
・Size: 2.6×2.6mm
・Shape: Round cut
・Scratches/Chips: S-A+
・Inclusions: A+
・Remarks: Usually heated.
*Paraiba tourmaline is generally a heated gemstone. Due to current identification technology, it is difficult to distinguish between heated and unheated stones, so the treatment is noted as "Usually heated."
・Accessories: Sorting (Japan Gem Jewellery Association), Karatz quality guarantee, loose stone case (clear zip-lock case if it doesn't fit)
※ While we strive to ensure that the photos accurately represent the actual color, there may be slight differences due to lighting conditions during photography or your monitor environment. Additionally, some photos may be taken using a penlight.
※ For products with UV fluorescence photos, we use a 365nm black light. If you use a light with a different wavelength (e.g., around 395nm), the fluorescence may appear weak or 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.
karatz_item_id: 12562736
・Type: Loose stone (natural stone)
・Gemstone name: Brazilian Paraiba Tourmaline (Paraiba Tourmaline)
・Weight: 0.068ct
・Size: 2.6×2.6mm
・Shape: Round cut
・Scratches/Chips: S-A+
・Inclusions: A+
・Remarks: Usually heated.
*Paraiba tourmaline is generally a heated gemstone. Due to current identification technology, it is difficult to distinguish between heated and unheated stones, so the treatment is noted as "Usually heated."
・Accessories: Sorting (Japan Gem Jewellery Association), Karatz quality guarantee, loose stone case (clear zip-lock case if it doesn't fit)
※ While we strive to ensure that the photos accurately represent the actual color, there may be slight differences due to lighting conditions during photography or your monitor environment. Additionally, some photos may be taken using a penlight.
※ For products with UV fluorescence photos, we use a 365nm black light. If you use a light with a different wavelength (e.g., around 395nm), the fluorescence may appear weak or 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.
karatz_item_id: 12562736
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Brazilian Paraiba Tourmaline 0.068ct loose stone
Sale price¥61,800
Regular price



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