18K / 750 Yellow Gold Necklace with Akoya Pearl, Freshwater Pearl, and Colored Tourmalines Gold hallmark: 750 Length: 45 cm Weight: 28.76 g • 1 Akoya pearl, 9.5 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) • 2 freshwater pearls, 4 mm Ø • 168 rondelle-cut colored tourmalines, 2 × 6 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, UPS, FedEx, or Correos Express. Transit time: Spain: 24 h Europe: approx. 48–72 h Worldwide / outside EU: approx. 48–72 h