{"product_id":"topaze-naturel-bleu-london-taille-brillant-rond-6-mm","title":"Natural London Blue Topaz Round Brilliant Cut 6 mm","description":"\u003cul\u003e\n\n\u003cli\u003eType: Topaz\u003c\/li\u003e\n\n\u003cli\u003eOrigin: \u003cspan\u003eBrazil\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003eShape: \u003cspan\u003eRound brilliant\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003eStone weight: Approximately 0.90 ct\u003c\/li\u003e\n\n\u003cli\u003eColor: London Blue\u003c\/li\u003e\n\n\u003cli\u003eDimensions: 6 mm\u003c\/li\u003e\n\n\u003cli\u003eQuality and treatment: irradiated. *\u003c\/li\u003e\n\n\u003cli\u003eBirth month: December\u003c\/li\u003e\n\n\u003cli\u003eHardness: 8\u003c\/li\u003e\n\n\u003cli\u003eRefractive index: \u003cspan\u003e1.619-1.627\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003eDensity: 3.53\u003c\/li\u003e\n\n\u003cli\u003eCare: Avoid sudden temperature changes. Gently rub with a soft brush and warm soapy water.\u003c\/li\u003e\n\n\u003cli\u003eUltrasonic sensitivity: High, never use\u003c\/li\u003e\n\n\u003cli\u003eSteam sensitivity: High, never use\u003c\/li\u003e\n\n\u003cli\u003eChemical sensitivity: \u003cmeta charset=\"UTF-8\"\u003e \u003cspan\u003eCertain acids, including hydrofluoric acid\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003eHeat sensitivity: Moderate to low - May cause a color change.\u003c\/li\u003e\n\n\u003cli\u003eThe image is for illustrative purposes only\u003c\/li\u003e\n\n\u003cli\u003eSold individually\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003eThis stone can be incorporated into a custom project according to your preferences. We work directly with independent lapidaries and suppliers using a respectful and transparent approach. Each stone is carefully selected to ensure reliable quality while supporting responsible practices.\u003c\/p\u003e\n\u003cp\u003eNote on treatment:\u003cbr\u003eThis stone has been treated by irradiation, a common process used to modify or intensify its color. This treatment consists of exposing the stone to controlled radiation (such as electrons or gamma rays), sometimes followed by heating. The result is generally stable and permanent, but it must be mentioned to ensure complete transparency. It is advisable to avoid high-temperature cleaning or excessive heat sources, which could affect the color.\u003c\/p\u003e","brand":"Mathieu Blanchard","offers":[{"title":"Default Title","offer_id":46535129137400,"sku":"PTOM14286S-6","price":58.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0471\/7199\/3767\/files\/topaze-naturel-bleu-london-taille-brillant-rond-6-mm-mathieu-blanchard-ptom14286s-topaze-naturel-bleu-london-taille-brillant-rond-6-mm-mathieu-blanchard-joaillerie-1176000683.png?v=1751309470","url":"https:\/\/mathieublanchardjewelry.com\/en\/products\/natural-topaz-london-blue-round-brilliant-cut-6-mm","provider":"Mathieu Blanchard Joaillerie","version":"1.0","type":"link"}