18K / 750 Yellow Gold Necklace with Akoya Pearl, Freshwater Pearls, Aquamarine, and Colored Tourmalines Gold hallmark: 750 Length: 45.5 cm Weight: 13.72 g • 1 Akoya pearl of 9.1 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) • 4 freshwater pearls, 4 mm Ø • 142 rondelle-cut colored tourmalines, 2.5 × 5 mm • 10 rondelle-cut aquamarines, 2.5 × 5 mm These types of gemstones are commonly treated to enhance their color. This has not been tested for these specific stones. Ships in a jewelry box 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)