Two Rings in 18ct Gold One 18ct white gold ring set with 4 oval rubies with good pinkish red colour with each having an approximate weight 0.30CT. flanking the rubies are 22= 0.22CT single cut diamond. total weight: 5.1 grams. Size: P. One 18ct yellow gold ring set with 1=0.96CT oval blue black coloured sapphire surrounded by 12=0.03CT H colour SI clarity. Weight: 8.2 grams. Size: P.