18K / 750 Yellow Gold Necklace with Akoya Pearls, Freshwater Pearls, and Sapphire Gold hallmark: 750 Length: 47 mm Weight: 13.11 g • 1 Akoya pearl, 9.3 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) • 106 freshwater pearls, 4 mm Ø • 10 rondelle-cut blue sapphires, 3 × 4.5 mm 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)