Exceptional Art Deco Platinum Three Diamonds Ring 
DECO THREE-DIAMONDS PLATINUM RING,  
1.50 Carats in three center diamonds, plus 18 accent diamonds interspersed and in  interlaced-ribbon motif  
 
(Total  21 diamonds,  1.65 carats) 
 
Quality, sophistication of design, and four digit number inside, all suggest production by CARTIER. 
 
Primary Diamonds :  three “old European cut” round brilliants of fine near ideal proportions, VS clarity, F-G color, center estimated .74 carats between between pair .38-.39ct each; total 1.50 carats 
Accent Diamonds :  18, single cut, graduated, total estimated . 15 carat  
 
Circa :  1920's   
Identifying marks :  “1103” 
Finger size :  5-3/4 
Quality :   fine and original 
 
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