Platinum, diamond and Burma ruby ring

DESCRIPTION: ring decorated in the center with an oval ruby flanked by two triangle-cut diamonds WEIGHT: diamonds ct 0.60, H, VS, ruby ct 3.40, the ruby is accompanied by a gemological certificate from Gemmological Certification Services n. 81211-05 issued on 11/6/2021 which certifies that the ruby comes from Myanmar (Burma) and shows no traces of heating