Bridge Ring in platinum, diamonds, ruby, emerald and sapphire

MATERIAL: platinum, diamond, ruby DESCRIPTION: bridge ring in the center with a octagonal-cut ruby, an emerald and a sapphire on the base and side parts entirely embellished with brilliant-cut diamonds, bears the mark of platinum MEASURES: ring 6 WEIGHT: ruby, emerald and sapphire 0.70 ct each, diamonds ct 1.50, G color, VS purity, 15.0 g