An onyx and diamond navette ring. The ring set with a centra...

Estimate

£400 - £600

An onyx and diamond navette ring. The ring set with a central round brilliant cut diamond within a marquise cut onyx slice to diamond set border and decorative foliate design shank. The ring head verso also having an engraved foliate design. Surface tests indicate gold. Maker's mark for Rozendaal, Gebr from Hoorn, The Netherlands to the ring shank. Size N. Head measures 3cm x 1.4cm. Weighs 5.0g. All weights, measurements and sizes are approximate.