Solid 18K Gold Diamond Stud Earrings Solid 18K gold (2g) ≈ $150 melt value Real diamonds (~0.40ct total) ≈ $150–300 value Total estimated worth: $300–450+ Selling for $350 ✨ Details: Gold Purity: 750 (18 karat gold) Weight: 2 grams (total for the pair) Diamond Carat Weight: 0.40 total carat weight (based on “040” stamp) Diamond Details: Small round brilliant cut, approximate total of 0.40 ct Condition: like new Markings: Stamped “750 040”