gold ring with a turning heart

An 18 carat yellow gold Boucheron bolt dome ring with in the middle a convertible heart with on one side brilliant-cut diamonds (app. 0.33 ct in total) and on the other side a heart-shaped cabochon stone Chalcedon signed and numbered: Boucheron B560-13042.

weight: 13.29 grams
ring size: 17.25 mm / 7 US
width: 11.9 – 5.5 mm