A diamond and enamel ‘Hibiscus’ band ring, by Wellendorff, the design incorporating a meandering vine inlay against a lilac enamel lattice background, with diamond signature highlight ‘Diamond W’, the inner band rotating, two colour precious metal, the shank stamped ‘750’, signed ‘Wellendorff Germany’ and numbered ‘50’, with signed box, ring size K½ (leading edge). £400-£500

Wellendorff is a third generation family jewellers, founded in Pforzheim, Germany in 1893 by Ernst Alexander and Julie Wellendorff.