An early 20th century single stone diamond ring, the collet set old brilliant cut diamond weighing 2.50 carats, to polished shoulders, the shank with former Austro-Hungarian Empire 1872-1922 mark, finger size M 1/2, 5g gross Condition Report: The diamond colour estimated K-L, clarity VVS2-VS1, a small pinpoint inclusion and some bearding, the shank has been resized, the setting has some rubbing to the collet from use, but the stone is still secure. Stone measures approximately 9.2mm x 4.9mm Condition Report Disclaimer