18K / 750 Yellow Gold Earrings with Akoya Pearls, Freshwater Pearls, Sapphire, and Tanzanite 18 k yellow gold (not stamped, tested positive for 18 k) Length: 44 mm Weight: 4.52 g • 2 Akoya pearls, 7.5 mm Ø Pearl type: Saltwater Akoya pearl (Pinctada martensi oyster) Shape: Round Origin: Japan Color: White Luster: Super high luster Nacre: Thick Surface: Smooth and clean (see photos) • 8 freshwater pearls, 3 mm Ø • 10 faceted rondelle-cut tanzanites, 3.5 × 5 mm • 10 faceted blue shappire beads, 2 mm Ø These types of gemstones are commonly treated to enhance their color. This has not been tested for these specific stones. Shipping Insured shipping via UPS, DHL, FedEx, or Correos Express. Estimated transit time: • Spain: 24 h • Europe: approx. 48–72 h • Worldwide / outside EU: 72 h (delivery times may vary by destination)