Art Deco 2.12ct M/SI1 Old Mine Brilliant Cut Diamond Engagement Ring art deco made in Portugal in the

made in Portugal in the 1950s

inner and outer boxes

themselves

with patent number and serial number matching the diamond certificate

leaving a further 0

Art Deco 2.12ct M/SI1 Old Mine Brilliant Cut Diamond Engagement Ring art deco made in Portugal in theA wonderful Antique Art Deco Diamond Engagement Ring, which we date to approximately 1920. Set with a wonderful 2. 12ct Old Mine Cut Diamond which has been certified by GIA as M SI1. Although graded as an M colour, the diamond faces up white. Old Mine Cut Diamonds are rare and prized for their fire over their brilliance; this fire is achieved through the relatively high crown by comparison to modern brilliant cut diamonds. You can see in our video