Art Deco Diamond Marquise Cluster Ring persian JG&S maker's mark

JG&S maker's mark

I just googled "anatomy of a key" and it was somewhat illuminating - I would have only hit on one of those three descriptors

currently remains vacant)

this superb signet ring is a marvel of Victorian design and craftsmanship

and a pair of diamond-set leaves in the middle

Art Deco Diamond Marquise Cluster Ring persian JG&S maker's markDATE: Art Deco, c. 1920 Stunning Art Deco marquise cluster ring dating from the 1920s. Its set with transitional and single cut diamonds over a carat total in fine millegrain platinum bezel mounts, the three larger stones arranged longways down the finger with open space between them and the rest of the head to give the impression theyre floating. Its crafted in 15 karat gold and platinum, with ornate almost Victorian style shoulder accents and a fine