Containing one oval double cabochon ruby measuring 15.85 x 11.27 x 9.06 mm, and pear shaped, tapered baguette, and round brilliant cut diamonds weighing approximately 2.75 carats total. Mounted in platinum. Ring size 6 1/2. 
Stamp: IRID.PLAT 50997. 
Gross weight: 9.20 dwt.

GIA, 2023, Report No. 2233028522, Natural Corundum, Ruby, Burma (Myanmar), No Indications of Heating

Accompanied by an Oscar Heyman letter of authentication.