{"product_id":"rubino-grezzo-1490-ct","title":"Raw Ruby 14.90 ct","description":"\u003cp\u003e The gem appears included when observed with a 10-magnifying glass. The glassy appearance of its surface is caused by the heating treatment in the presence of fluxing materials, such as borax, in which the rough stones are immersed. These fluxes allow the recrystallization and internal fractures of the ruby, but having a lower melting point than the gem, they dissolve to form a glassy patina that remains on the surface of the rough stone and that will be eliminated with cutting. Or by heating treatment in the presence of lead-glass, which fills the fractures of the rough stone and covers its surface.\u003c\/p\u003e","brand":"Nero Gems","offers":[{"title":"Default Title","offer_id":46777656901971,"sku":"RBG0002","price":120.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/7638\/4595\/products\/IMG_20191119_144857-scaled_0618f6aa-b3cf-4709-8f19-6c993e8b352e.jpg?v=1687556809","url":"https:\/\/www.nerocraft.com\/en\/products\/rubino-grezzo-1490-ct","provider":"Nero Craft","version":"1.0","type":"link"}