Bidspirit auction | Vintage 1.21ct Natural Diamond and

Vintage 1.21ct Natural Diamond and Pm900 (Platinum/Palladium) Solitaire Ring - This is a solitaire engagement ring featuring a round brilliant-cut natural diamond. The center stone is held in a traditional six-prong Tiffany-style mounting. The diamond exhibits significant internal characteristics, including visible carbon spots and feathers throughout the table and pavilion. The ring is constructed from solid platinum with a rounded shank. The interior of the band is stamped with the diamond weight 1.21 and a 900 mark within a diamond-shaped cartouche, indicating 90% platinum purity. A rectangular stamp containing the letters Pm is also present, alongside a circular mark containing a stylized geometric device. The metal surface shows a textured, worn finish from extended use. Ring Size: size 5.5