A late 19th century ruby and diamond cluster ring, the ruby weighing approximately 2.75cts, set

A late 19th century ruby and diamond cluster ring, the ruby weighing approximately 2.75cts, set within a surround of old cushion-shaped diamonds in silver and gold collet setting, size P Accompanied by GCS report number 782-1395 dated 30th March 2022 stating that ruby weighs 2.75cts approximately, origin: Burma, no indications of heating