An Art-Deco platinum diamond engagement ring. Circa 1920.
Antique Collection
1 old mine-cut diamond: 1.21 carat
GIA: 2211908871 / I color, VS1 clarity
20 round diamonds: 0.20 carats
2 marquise brilliant-cut diamonds: 0.10 carats
G-I color, VS1-SI1 clarity
**1.51 total diamond weight
