Exceptional Ceylon Sapphire Of 15 Carats Without Treatment

EXCEPTIONAL Ceylon sapphire of 15 carats without treatment, change color effect. Style: Vintage Condition: Good condition Material: 18k white gold, sapphire, diamonds Description of the antique: "Ring in 18k white gold, set with a Ceylon sapphire and supported by 6 brilliant-cut diamonds. The imposing blue sapphire slightly purplish natural "color change" in cushion cut. Origin Sri Lanka (formerly Ceylon), 18-carat white gold setting and surrounded by six brilliant-cut diamonds. The three accompanying certificates including an IGI from Antwerp, LFG from Paris and our own certificate indicate an origin from Sri Lanka and certify that it presents no indication of heating or any other treatment.The sapphire is of a remarkable size, it is of great intensity and purity, presenting a luminous and a very beautiful saturation. Its great transparency and its deep blue-violet make it a very lively sapphire. This sapphire is also equipped with a rare optical effect called "color change" or "color change", thus giving it its soft, slightly purplish blue color in daylight and a sublime, marked and deep blue-violet color in incandescent light (most artificial lights). I draw your attention to the exceptional quality of this sapphire, which is quite rare on the market. Size: 56 (scaling possible). GROSS weight: 8.18 gr. Gem size: 13.70 X 12.15 X 8.25 (mm) Estimated gem weight: 15.00 ct. approximately Estimated total diamond weight: 1.20 ct. approximately Diamonds: color: EF clarity: VVS1 Hallmark: 750 Three gemological certificates will be given to the buyer. No delivery possible for this jewellery. To be removed from our gallery.