Tiered platinum and diamond ring

Art Deco platinum ring with stepped diamonds, adorned with a central diamond of 0.30ct.

Material: Platinum
Hallmark: Dog's head
Weight: 9.4 grams
Length: 1.8cm
Width: 1.2 cm
Adjustable finger circumference: 51.5
Carat number: 0.30 ct & 0.40 ct surrounding
Number of stones: 33
Period: 1930