A diamond ring, early 20th century, set with a circular-cut diamond weighing approximately 2.00

A diamond ring, early 20th century, set with a circular-cut diamond weighing approximately 2.00 carats, to shoulders pavé-set with single-cut diamonds, mounted in platinum, size O1/2

In our specialists' opinion, the diamond measuring approximately 8.1 x 8.1 x 5.1mm is approximately G colour, SI2 clarity (colourless crystal below table), medium blue fluorescence. Shank with evidence of resizing. Overall a very attractive ring in good condition, gross weight 4.5 grams.