{"product_id":"12564527","title":"[Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_15] Ethiopian Paraiba Tourmaline 0.430ct Loose Stone (CuO: 2.334%, MnO: 0.642%) GIA \u0026 Composition Analysis Report included","description":"\u003cp\u003e\u003cspan\u003eTo apply for the lottery sale, please click \u003ca href=\"https:\/\/store.karatz.jp\/blogs\/news\/lottery20261004\" rel=\"noopener\" target=\"_blank\"\u003ehere\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e*Available for purchase during the October campaign.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eParaiba tourmaline is prized for its captivating blue to green hues. It is characterized by a unique coloration derived from its copper content and was first discovered in Paraíba, Brazil, in the 1980s. Since then, copper-bearing tourmaline has also been mined in Africa, and in recent years, stones from Ethiopia have garnered significant attention.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an Ethiopian Paraiba tourmaline sourced in Hong Kong. Rather than focusing solely on clarity, I chose this piece for the vibrant blue-green color and neon glow that define Paraiba tourmaline.\u003cbr\u003eWhile inclusions are present, stones of a similar color with higher clarity can command prices three times higher in the local market. This stone was selected for its balance of aesthetic beauty and value.\u003cbr\u003eCompositional analysis shows 2.334% CuO (copper oxide) and 0.642% MnO (manganese oxide). This is a loose stone that can be appreciated not only for its visual beauty but also for the elements that create its color. It comes with a GIA identification report and a compositional analysis document obtained by our company.\u003cbr\u003e*Some analysis data is hidden on the product page. You can check the detailed results in the analysis document provided to the purchaser.\u003cbr\u003e\u003cbr\u003e・Type: Loose stone (natural)\u003cbr\u003e・Stone name: Ethiopian \u003ca href=\"https:\/\/store.karatz.jp\/collections\/paraiba_tourmaline\"\u003eParaiba Tourmaline\u003c\/a\u003e\u003cbr\u003e・Weight: 0.430ct\u003cbr\u003e・Size: 5.9×4.5mm\u003cbr\u003e・Shape: Pear shape\u003cbr\u003e・Scratches\/Chips: S\u003cbr\u003e・Inclusions: A\u003cbr\u003e・Notes: Typically heated and impregnated.\u003cbr\u003e　*Paraiba tourmaline is generally a gemstone that undergoes heating and impregnation.\u003cbr\u003e・Accessories: Identification report (GIA), loose stone case (or a zippered clear case if it does not fit).\u003cbr\u003e\u003cbr\u003e▷Jewelry Customization Available\u003cbr\u003eIf you would like to have this stone set into jewelry, please order it along with your preferred setting from the links below.\u003cbr\u003e・\u003ca href=\"https:\/\/store.karatz.jp\/collections\/ordermade\"\u003e[Select by Stone] Simple Order\u003c\/a\u003e\u003cbr\u003e・\u003ca href=\"https:\/\/store.karatz.jp\/collections\/karatz_semiorder\"\u003e[Select by Stone] Semi-Order\u003c\/a\u003e\u003cbr\u003eIf you would like a mock-up photo of the stone in a setting, wish to consult on a full-custom design, or have any other questions, please feel free to contact us \u003ca href=\"https:\/\/store.karatz.jp\/pages\/inquiry\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e※Rough stones are not eligible for customization. Some other stones may also be ineligible.\u003cbr\u003e\u003cbr\u003e※ We strive to ensure that the photos reflect the actual colors of the product as accurately as possible; however, appearance may vary slightly due to lighting conditions during photography or your monitor settings. Some photos may have been taken using a penlight.\u003cbr\u003e\u003cbr\u003e※ For products 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 harder to detect. The blacklight we use can be found \u003ca href=\"https:\/\/store.karatz.jp\/products\/90000077\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e※ For more information regarding scratches, chips, treatments, and inclusions, please see \u003ca href=\"https:\/\/note.com\/karatz\/n\/n5319af0b99c8\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e※ For other frequently asked questions, please see \u003ca href=\"https:\/\/store.karatz.jp\/pages\/faq\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003ekaratz_item_id: 12564527\u003c\/p\u003e","brand":"カラッツSTORE","offers":[{"title":"Default Title","offer_id":50646338011329,"sku":"12564527","price":248000.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0565\/5802\/6945\/files\/P9252024_005776c9-962a-4d05-8192-afc9b2542532.jpg?v=1790832025","url":"https:\/\/store.karatz.jp\/en\/products\/12564527","provider":"カラッツSTORE","version":"1.0","type":"link"}