Platinum trilogy ring with pearl and diamonds

Antique trilogy ring in platinum, pearl, and diamonds

Platinum trilogy ring set in a pretty openwork setting with two old-cut diamonds weighing approximately 0.3 carats each, estimated to be GHSI quality, and a button pearl, probably fine, with a diameter of 8.65mm. French work, circa 1910.

Ring size 55, resizing possible
Gross weight: 4.44 grams