The 18kt Gold Ring 10. 18ct Blue Topaz by Lesunja Fine Jewellery. This glamorous ring features deep blue topaz, surrounded by sparkling bright diamonds. This ring sits elegantly on the finger, adding sparkle and shape to the hand. The perfect ring for everyday. Details: Jet Set Miami / 10. 18ct London Blue Topaz / 68 Diamonds About the Designer: Switzerland brand, Lesunja Fine Jewellery creates wearable art made from gold, gemstones and diamonds. Regularly seen at New York Fashion Week, Lesunja combines traditional Swiss craftsmanship with today’s cutting-edge technology. To find out more about the designer, please visit Lesunja Fine Jewellery.