Natural Aquamarine Pendant Necklace, Aquamarine Simple Style Necklace Platinum. This necklace contains natural Aquamarine Gemstones measuring 3x4mm (9 Gemstones Total) This necklace is 925 Sterling Silver and Platinum Plated, also available in Gold or Rose Gold Plating. This item includes a velvet gift box and a certificate of authenticity with purchase. This item is made to order, please allow up to 10-15 days for processing and delivery of this item.