An unusual Diamond signet ringA fine and unusual early 20th century signet style ring, crafted in rich 18 carat yellow gold. The ring is set centrally with an old brilliant cut white diamond, measuring approximately 3mm (estimated 0. 10 carats), securely star set into the surface. The design tapers elegantly from the shank to a subtle point at the top, giving it a distinctive and refined profile. The shank maintains a substantial and consistent width of approximately 10mm,