This is a lovely 1950's pearl and sapphire dome ring. Composed of eight 3 mm cultured pearls and twelve 2.5 natural blue sapphires. We have gone over all the prongs and find the stones to be secure. Weighing 5.5 Penny weights (8.4 grams) of 14k yellow gold. The stamp is deep and not clear to read but we have tested the metal, in our shop, and determined it be at least 14k if not 18k. The dome is 1 inch by 1 inch. Size 6 and can sized if needed. Truly a beautiful piece sure to please.