The 18kt White Gold Hexagon Sapphire & Diamond Necklace by Ri Noor. This handcrafted hexagon sapphire and trillion-cut diamond necklace is set on an 18kt white gold fitting. The quality of each element is immediately evident. The sapphire is particularly stunning, with its subtle fade from white to azure blue. About The Designer: Ri Noor jewellery is built around gemstones. Baltimore-based designer Shibani Shinde Patil, works holistically, creating purpose-built settings that perfectly amplify the qualities of each stone. The results are refined, elegant and ultimately timeless. To find out more about the designer, please visit Ri Noor.