{"product_id":"black-boulder-opal-1017-bobl","title":"Black Boulder Opal – Striking Blue \u0026 Green Broad Flash (5.1ct)","description":"\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003eThe Nightcloud Ember - A dark, mysterious black boulder opal with rolling blue‑green space‑cloud flashes drifting across its surface, the electric fire glowing like cosmic light swirling through a deep midnight sky.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003eThis striking black boulder opal shows intense blue and green broad flash across its polished freeform surface, glowing vividly against the natural dark host rock.\u003c\/p\u003e\n\u003cp\u003eWith brightness 5, the colour play is exceptionally strong - the kind of electric blue that lights up even in low light. The black base enhances the contrast, giving the flashes a deep, dramatic look that collectors love.\u003c\/p\u003e\n\u003cp\u003eAt 5.1ct, it’s a compact but powerful stone, perfect for a high‑impact ring, pendant, or a collector’s display. Still attached to its natural ironstone host, it carries the authentic character of Queensland’s black boulder opal fields.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpal Type:\u003c\/strong\u003e Black Boulder Opal \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Seam\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Blue, Green \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Broad Flash\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Freeform \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Polished \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e B5 (of 5)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone Dimensions:\u003c\/strong\u003e 15 × 8 × 3 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.02 g (approx. 5.1 ct) \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting:\u003c\/strong\u003e None (loose stone) \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource:\u003c\/strong\u003e Miner‑direct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin: \u003c\/strong\u003eLightning Ridge Opal Fields Australia\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Georgie's Gem Studio","offers":[{"title":"Default Title","offer_id":57545191915902,"sku":"1017‑BOBL","price":289.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/6764\/8638\/files\/20260625_170901.jpg?v=1782753201","url":"https:\/\/georgiesgemstudio.co.uk\/products\/black-boulder-opal-1017-bobl","provider":"Georgie's Gem Studio","version":"1.0","type":"link"}