Georgian Diamond Cobblestone Navette Cluster Ring Size:11.5 with minute amounts of certain

with minute amounts of certain metals added to give colour – the technique was perfected by Georges Frédéric Strass in 1724

a natural Sri Lankan sapphire mined and cut circa 1890

The body of the fob is a coiled snake

It's surrounded by a cluster of old cut diamonds

Georgian Diamond Cobblestone Navette Cluster Ring Size:11.5 with minute amounts of certainDATE: Georgian, c. 1830 A spectacular antique cobblestone cluster ring, navette shaped and set with chunky old cut diamonds throughout. This remarkable piece dates to the Georgian period, modelled in 18 karat gold with silver settings with gorgeously scrolled detailed shoulders. A 0. 40ct old mine cut diamond rests in the centre of the boat shaped head, and further old cuts glisten and sparkle around it, 1. 24ct total. It features a lovely pierced