1800's Imperial Russian 1.50ct Mine-cut SI2-I1/G-H Diamond Solitaire in Solid 72 Yellow Gold Band (Makers' Mark "L" & Comes W/Russian Grading Certificate)- This stunning museum quality piece is made of solid 72 yellow gold (Pre-Revolution Russian standard for 18K gold), and boasts a massive 1.50ct Mine-Cut Diamond Solitaire. The ring was made for a Russian Aristocrat, and the date stamp on the band suggests that the piece was originally owned by royalty. These high-end pieces from this period, and part of the world are incredibly hard to find. Pieces like this can fetch over $50,000 when they are sold at auction, as it is very rare to find a date stamped, solid 72 gold piece with a genuine, period correct mine-cut diamond solitaire of this quality. Ring sz. 7.5 (9.57 Grams) IN ORIGINAL BOX