29. An antique ring with diamonds

An antique ring with diamonds
Late 19th century
The ring with an oval motif and set with four old-cut diamonds, each weighing approx. 0.30 carat, in a diamond setting. With case, marked: Nico Heijkoop, Zeist
Below Dutch legal alloy
gross approx. weight 3.6 grams
Weight diamond approx. 1.20 carat
Ring size 18 1/4

Estimate
€ 500 - 700
Hammer amount
€ 750