The total weight of the rubies in the earrings is 15.00 carats. The earrings are set in platinum, which is a highly durable and prestigious metal, often used in high-end jewelry for its strength and hypoallergenic properties. There are 2 stones, each being a cabochon ruby with a combined carat weight of 15 carats . This indicates the total weight for the two rubies in the earrings. This refers to 64 round brilliant diamonds, with an estimated combined carat weight of 4.40 carats. These diamonds are likely smaller and are used to accentuate the rubies in the design.