Classic Oval Light Blue Sapphire Pendant in 9ct White Gold Trifels Castle in Rhenish Franconia. A stunning pendant crafted from 9ct white gold, set with a single oval shaped blue Kanchanaburi sapphire gemstone. This pendant comes with a matching 9ct white gold chain. sapphire jewellery, particularly blue sapphires are steeped in royal tradition. Lady Dianas and now Kate Middletons Ceylon sapphire engagement ring is one of the most popular sapphire jewellery pieces in the royal collection. sapphire Information: Number of Stones: 1 Stone Shape: Oval Stone Size: 7mm x 5mm Carat Weight: 1. 11ct Natural Created: Natural sapphire Country of Origin: Thailand