Certified Sapphire, Royal Blue Natural Unheated Sapphire, and Diamond Ring, set in an excellent quality hand-made mount in platinum with English/British hallmarked London 2016, Platinum 950, sponsor mark "ALDN" for Asprey London. 
High jewellery statement ring, centering royal blue colour, cushion shape sapphire, surrounded by melee round brilliant cut diamonds and two trillion cut diamonds on shoulders which shines and glistening. 
1 x  Sapphire weight 5.54 cts  (the fantastic cut gives the appearance of larger stone) with GRS certificate, natural unheated sapphire, with the most beautiful high saturated royal blue colour, eye-clean clarity, Madagascar origin
2 x trillion cut diamonds, approximate weight 1.50 cts each 
56 x round brilliant cut diamonds approximate total weight 0.90 cts, assessed colour G/H, assessed clarity VS
Princess Diana's sapphire engagement ring made its way to Kate Middleton for her engagement to Prince William—but the Windsors aren't the only VIPs known for sporting this spectacular stone. Sapphires have been celebrated throughout history as the stone of royalty. Once thought to have strong medicinal and protective powers, sapphires symbolize good luck and are associated with wisdom, fidelity, and Old World romance.
In its most classic form, this regal stone is a rich blue; but for the more daring bride, there are many other colorful fancy sapphires to choose from. While sapphires don't retract as much light as diamonds, they are extremely hard and durable; they're also the traditional gift for the 45th wedding anniversary—which inspired this list of 45 stellar sapphires to swoon over.
Details:
CREATOR-Asprey International Limited
IN THE STYLE OF-Modern
PLACE OF ORIGIN-United Kingdom
DATE OF MANUFACTURE-2016
PERIOD-2010-
METAL-Platinum
STONE-White Diamond,Blue Sapphire
STONE CUT-Cushion Cut
CONDITION-Excellent-See Condition Descriptions
DIMENSIONS-W 0.84 in. x D 0.31 in.W 21.1 mm x D 7.7 mm
LENGTH-0.64 in. (16.1 mm)
WEIGHT-9.6 g
SELLER LOCATION-London, GB
REFERENCE NUMBER-LU116815527121