Fancy colored diamond and diamond ring, circa 1920

The twin stone mounting set with an old European-cut diamond of fancy dark brown-yellow color weighing 3.70 carats and a round diamond weighing 3.45 carats,  within an openwork mounting of platinum decorated with small single-cut diamonds.

Accompanied by GIA reports no. 15640527 stating that the 3.70 carat diamond is Fancy Dark Brown-Yellow, Natural Color, SI1 clarity, and no. 15646888 stating that the 3.45 carat diamond is I color, VS2 clarity.