{"product_id":"gia-certified-5-35-carat-cushion-cut-burma-sapphire-vintage-ring","title":"GIA Certified 5.35 Carat Cushion Cut Burma Sapphire Vintage Ring","description":"\u003cdiv\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eGIA certified 5.35 carat cushion cut Burma sapphire ring in 18K white gold with 1.50 carat diamonds featuring no heat treatment and vintage halo setting. Royal blue sapphire from Myanmar with nearly flawless antique French square cut diamond side stones flanked by baguette cut diamonds and round cut diamond halo, size 4.75, adjustable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eItem Type: Vintage Engagement Ring\u003c\/li\u003e\n\u003cli\u003eMetal: 18K White Gold\u003c\/li\u003e\n\u003cli\u003eSize: 4.75 (adjustable with sizing beads)\u003c\/li\u003e\n\u003cli\u003eWeight: 6.76 grams\u003c\/li\u003e\n\u003cli\u003eSetting Style: Vintage Halo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCenter Stone Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Natural Sapphire\u003c\/li\u003e\n\u003cli\u003eCarat: 5.35 Carat\u003c\/li\u003e\n\u003cli\u003eShape: Cushion Cut\u003c\/li\u003e\n\u003cli\u003eColor: Deep Blue (Royal Blue)\u003c\/li\u003e\n\u003cli\u003eOrigin: Burma (Myanmar)\u003c\/li\u003e\n\u003cli\u003eTreatment: No Heat\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e: GIA Report 5231479482\u003c\/p\u003e\n\u003cp\u003eGIA Comments: The color appearance of this stone is described in the trade as \"Royal Blue.\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSide Stone Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFrench Square Cut Diamonds (2pcs)\u003c\/li\u003e\n\u003cli\u003eBaguette Diamonds (2pcs)\u003c\/li\u003e\n\u003cli\u003eRound Diamond Halo: Surrounding the center stone\u003c\/li\u003e\n\u003cli\u003eTotal Diamond Weight: 1.50 Carats (approximate)\u003c\/li\u003e\n\u003cli\u003eColor: F-G\u003c\/li\u003e\n\u003cli\u003eClarity: VS1-VS2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRing Size: 4.75 (with sizing beads, adjustable)\u003c\/li\u003e\n\u003cli\u003eCenter Stone: 9.90 x 8.86 x 6.09mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 6.76 grams\u003c\/li\u003e\n\u003cli\u003eCarat Weight: 5.35ct sapphire + 1.50ct diamonds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis exceptional 5.35 carat Burma sapphire represents the absolute pinnacle of Sapphire quality, exhibiting the legendary \"Royal Blue\" saturation that defines top-grade gems. The color distribution demonstrates remarkable uniformity across the cushion's faceted surface, with no visible color zoning or secondary hue. The saturation reaches an optimal 85-90% intensity, creating the coveted \"Roya Blue\" appearance that Burma sapphires are renowned for. Crystal clarity is loupe-clean with minute silk inclusions that actually enhance the stone's lustrous properties by creating internal light diffusion. The brilliance factor is exceptional, with each facet junction creating crisp light return and scintillation patterns typical of perfectly proportioned cushion cuts. Most significantly, the complete absence of heat treatment preserves the sapphire's natural crystal structure, resulting in superior hardness, enhanced pleochroism, and the distinctive fluorescent properties that separate unheated Burma stones from all other origins. And at over 5 carats, this is quite an exceptional gem.\u003c\/p\u003e\n\u003cp\u003eThis vintage 18K white gold setting features nearly flawless antique French square cut diamond side stones flanked by precision-cut baguettes, creating sophisticated geometric progression toward the round diamond halo that encircles the sapphire. The secure four-prong mounting showcases the cushion-cut sapphire while allowing maximum light penetration. At 6.76 grams, the substantial construction ensures lasting durability while maintaining refined proportions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ASSAY","offers":[{"title":"Default Title","offer_id":45316121493694,"sku":"POTC2218R","price":596351.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0508\/5724\/6910\/files\/GIA-Certified-5_35-Carat-Cushion-Cut-Burma-Sapphire-Vintage-Ring-Ring.jpg?v=1756158929","url":"https:\/\/ae.assayjewelers.com\/zh-tw\/products\/gia-certified-5-35-carat-cushion-cut-burma-sapphire-vintage-ring","provider":"ASSAY","version":"1.0","type":"link"}