18K / 750 Yellow Gold Necklace with Akoya Pearl, Freshwater Pearls, and Colored Tourmalines Gold hallmark: 750 Length: 45 cm Weight: 16.77 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, 4.7 mm Ø • 2 freshwater pearls, 3.8 mm Ø • 2 freshwater pearls, 3 mm Ø • 140 rondelle-cut colored tourmalines, 3 × 5 mm These types of gemstone are commonly treated to enhance color. This fact has not been examined for these specific stones. SHIPPING: Insured shipping via UPS, DHL, FedEx, or Correos Express. Transit time: Spain: 24 h Europe: approx. 48–72 h Worldwide / outside EU: approx. 48–72 h