Vintage Diamond Emerald Target Cluster Platinum Ring

This vintage Art Deco style diamond and emerald cluster ring, featuring a 1.20 carat old European cut diamond to a target surround of calibre cut emeralds, estimated to weigh 0.15 carats, with another border of old mine brilliant cut diamonds, all to a millegrain setting. There are more diamonds set to the split shoulders, all to a platinum mount.

Condition: Very good condition
Country of origin: unknown
Style: Art Deco
Period: ca. 1930
Material: Platinum (touchstone tested)
Extra information: Although the ring looks like it was made before WWII, it is very well possible that it was made in the second half of the 20th Century.
Diamonds: One old European cut diamond with an estimated weight of 1.20ct. (colour and clarity: J/K, i) and 30 old mine brilliant cut diamonds with an estimated weight of 0.45ct. (colour and clarity: G/I, si/i).
Precious stones: 20 emeralds with an estimated weight of 0.15ct.
Hallmarks: No trace.
Dimensions: top of ring 1.39 cm x 1.47 cm
Weight: 3.80 gram
Ring size Continental: 55 & 17½ , Size US 7¼ , Size UK: O