Purple Tanzanite Statement Necklace, Platinum Plated Tanzanite Collar Necklace. The gemstones on this necklace are natural Tanzanite from Brazil and measure 3mm x 5mm. The side stones are high quality cubic zirconia's. This necklace is solid 925 sterling silver and available in three color options: Silver (Platinum Plated), Rose Gold Color, or Gold Color. Please message me with your choice of metal color or include within your order notes. 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.