Early 2000’s “vintage” 10K white gold open-heart pendant with a halo of small melee diamonds. (No chain included) * Metal: 10K white gold * Estimated gold weight: likely 1.5–3 grams * Estimated total diamond weight: roughly 0.10–0.25 carats The “10KS” stamp is commonly used on some vintage and estate jewelry to indicate 10-karat gold (sometimes with a manufacturer’s mark).