Vintage Angel Castelo 18K Onyx Diamond Spinner Ring

Vintage Angel Castelo kinetic spinner ring crafted in 18K gold, featuring a central bowl component onyx disk with a moving brilliant-cut diamond creating a floating effect. Surrounding the onyx, a halo of brilliant-cut white diamonds creating a contrasting frame. This piece, dated 1976, is a striking example of American Castelo's kinetic ring collection.
Diamonds:
Center Diamond: 0.25 ct. Clarity: SI2, Color: H
17 Side Diamonds: 0.42 ctw. Clarity: SI1-I1, Color: G-H
Measurements:
Front: 17mm in circumference
Band: 2 mm
Weight: 12.2 g
Size: 7.75 (Sizable)
Marked: 18K 1976 and the maker's mark