{"product_id":"gia-certified-oval-black-opal-18k-gold-pendant-and-pin","title":"GIA Certified Oval Black Opal 18K Gold Pendant and Pin","description":"\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eGIA-certified natural black opal in matrix with vivid play of color is mounted in 18K yellow gold as a combination brooch and pendant, featuring an oval double-cabochon center with a treated black body color and a substantial 6.51-gram construction.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePendant measures 32.3 x 19.3mm overall.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cstrong style=\"color: rgb(0, 0, 0);\"\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eItem Type: Black Opal Combination Brooch and Pendant\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eMetal: 18K Yellow Gold\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTotal Weight: 6.51 grams gross\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eOverall Pendant Measurements: 32.3 x 19.3mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCenter Stone Measurements: 27.00 x 15.50 x 5.45mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCenter Stone Shape: Oval\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCutting Style: Double Cabochon\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eColor: Black\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTransparency: Opaque\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePhenomenon: Displaying Play of Color\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTreatment: Treated Black\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCertificate: GIA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCertificate Number: 2241075266\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReport Date: September 22, 2026\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cstrong style=\"color: rgb(0, 0, 0);\"\u003eAbout The Setting:\u003c\/strong\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe 18K yellow gold mounting presents the large oval opal as the focal point of a versatile combination brooch and pendant design. The warm gold frame follows the elongated oval contour of the center stone, creating a clean border that emphasizes the dark body color while complementing the flashes of spectral color visible across the opal's surface. At 32.3 x 19.3mm overall, the piece has a substantial yet wearable scale, while the combination brooch and pendant construction gives it versatility as both a decorative jewelry accent and a pendant.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cstrong style=\"color: rgb(0, 0, 0);\"\u003eAbout The Stone:\u003c\/strong\u003e\u003c\/div\u003e\u003cdiv\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe center stone is identified by GIA as \u003c\/span\u003e\u003cstrong style=\"color: rgb(0, 0, 0);\"\u003eNatural Opal in Matrix\u003c\/strong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e, displaying a black body color with opaque transparency and a visible \u003c\/span\u003e\u003cstrong style=\"color: rgb(0, 0, 0);\"\u003eplay-of-color phenomenon\u003c\/strong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e. Its oval double-cabochon cut measures \u003c\/span\u003e\u003cstrong style=\"color: rgb(0, 0, 0);\"\u003e27.00 x 15.50 x 5.45mm\u003c\/strong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e, providing a broad surface that allows the multicolored flashes to become the primary visual feature of the piece. GIA reports the stone as \u003c\/span\u003e\u003cstrong style=\"color: rgb(0, 0, 0);\"\u003etreated black\u003c\/strong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e, while its natural opal-in-matrix identity distinguishes it from ordinary solid-color black decorative material. The combination of the dark body tone, polished cabochon surface, and shifting play of color gives the pendant a dramatic appearance against the warm 18K yellow gold setting.\u003c\/span\u003e\n\u003c\/div\u003e","brand":"ASSAY","offers":[{"title":"Default Title","offer_id":49260745719998,"sku":"POTC2732P","price":58125.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0508\/5724\/6910\/files\/GIA-Certified-Oval-Black-Opal-18K-Gold-Pendant-and-Pin-PinBrooch.jpg?v=1791649014","url":"https:\/\/assayjewelers.com\/fr-hk\/products\/gia-certified-oval-black-opal-18k-gold-pendant-and-pin","provider":"ASSAY","version":"1.0","type":"link"}