Wellendorff Thank You For. Diamond Ring (607327). 18kt yellow gold ring with 2 individual rotating rings; a solitaire (0.25ct, TW, IF/VVS) ring on spinning base with a band of closely set diamonds and a red enamel heart. Total diamonds 0.652ct. Wellendorff jewellery is made in Germany and exhibits a patented enamel technique of high durability. Ring width 3.5mm. Ring size 6.25 (European size 52).