The Cluster Ring is a collection of the most beautiful diamonds and celebrates the harmony and the beauty of imperfection. This is the ring you can use as the perfect engagement ring or a gift just for yourself – it will be a faithful companion and make every day a little more glamourous. 18 K gold and 8 diamonds à 1x0.20ct, 2x0.03ct, 2x0.02ct, 2x0.01ct. Measurements: The band is 1.3 mm wide, the crown is 5.7 mm wide. This ring is made by hand with much love and care in the Rivour & Guya studio in the Black Forest, Germany. The gold used in all Rivour & Guya rings is ecologically river gold from Germany, mixed with recycled gold (Mass Balance Principle). The diamonds used in Rivour & Guya are of a very high quality. The diamonds are at least the G color and SI clarity and they all come from Canada (Deviak and Ekati mine) and are cut exclusively in RJC certified manufactories.