The 18kt Rose Gold Innervisions Hoop Earrings With Blue Sapphire & Diamonds by Joke Quick. One-of-a-kind hoop earrings in 18kt rose gold set with blue sapphire and pave upside down set natural coloured blue brilliant-cut diamonds. The pave set Natural coloured blue diamonds are natural diamonds which are colour treated, the colour is permanent unless the stones are subject to temperatures above 450°/850°F. Video available on request. About The Designer: Belgian designer Joke Quick discovered her passion for jewellery as a young girl. Influenced by colour and contrast, she has created a stunning range of rings, earrings, and necklaces that exude beauty and class. To find out more about the designer please visit Joke Quick.