Art Deco 18ct Yellow Gold and Platinum Ruby and Diamond Cluster Style Ring

1 Ruby, diameter: 3.3mm, weight: 0.15ct
8 Diamonds, diameter: 2.2mm, total weight: 0.18ct

Hallmarks: 18ct PLAT, weight: 1.9 grams, diameter: 9.3mm, height: 3.5mm, size: N