1930's Sapphire & Diamond Openwork Cluster Ring torpedo There is a lock mechanism

There is a lock mechanism

clearly by a jeweller at the very top of their game

It's flanked to either side by three old cut diamonds in stepped shoulder accents

London 1869

I'm not entirely sure what the message is here

1930's Sapphire & Diamond Openwork Cluster Ring torpedo There is a lock mechanismDATE: Art Deco, c. 1930 A simply stunning Art Deco period cluster ring, of openwork design and set with the classic combination of sapphire and diamonds. The large round head is bordered with gorgeous French cut sapphires, each one rich and vibrant in colour. A diamond daisy is set in the centre (0. 70ct total), with open worked sections and a diamond cluster surround. It features fine diamond set shoulders, and its modelled in platinum throughout.