18k Yellow Gold Engagement ring with 0.5ct Round Diamond E/SI1. A modern statement. The 2mm yellow gold band curves outwards and holds the diamond in a secure invisible bezel setting, making your diamond appear to be floating. This unique yellow gold setting setting is designed to allow more light to fall onto your diamond, resulting in a stunning display of colour and brilliance. This setting is available for round and princess cut diamonds, and can be set with diamonds from 0.25ct to 5ct.