This antique cushion cut ring is delicately set in this simple antique mounting. This diamond is hand cut and most likely cut in the 19th century. The mounting was most likely made in the early 20th century. The cheneer tubing and construction of this piece looks like an Art Deco ring set with an older stone. The diamond is held by 8 prongs.
 
Diamond
Weight: 1 = 0.78 cts estimated weight
Cut: old mine cut
Color: I
Clarity: I1/2
Measurements: 5.22 x 4.96 x 3.88 mm
Width: 6.4 mm -1.5 mm wide / 5.6 mm high off finger
Metal: 18k white gold
Markings: none Finger Size: 6.25 (inquire about sizing)
Circa: 1920's
Weight: 2.1 grams
Condition: 7 (ring has not been polished, stone has been checked, prongs are secure)