Vintage Platinum 1.17ct Diamond Art Deco Engagement Ring

A gorgeous vintage Platinum & Diamond Art Deco style engagement ring, comprising of a beautiful .83ct Brilliant Cut Diamond - Clarity= SI1 - Colour= G. Prong set in a raised, open back gallery. Lovely tapered Platinum shoulders with lovely Millegrain detail and inset with a further 10 graduated Brilliant Cut Diamonds and a further 4 brilliant Cut Diamonds set beneath the shoulders- Total Diamond Weight= 1.17ct - Leading to a plain Platinum shank. Ring size= J, can be resized. Hallmarked for Sheffield - 950 (Platinum). Circa 1980.