Intricate platinum filigree surrounding eleven diamonds. The center diamond weighs 0.65 ct, the two smaller weigh approximately 0.25 cts each and there's another .08 cts surrounding those. There are six tiny trapezoid cut natural sapphires.
The largest old mine cut diamond measures an I color and VS2 clarity on the GIA grading scale, the other smaller diamonds are well cut and matched to the center, ranging from H-I color, and from VS-SI clarity.
The ring is stamped inside "PLATINUM" and it is a size 4.75. The overall weight is 4.3 grams and it is in excellent condition. It probably dates to the very early 1920s.