Sterling Silver Two-Tiered Genuine Peridot Gemstone Filigree Necklace. Each Peridot is surrounded by 4 accent White Topaz gemstones. The Necklace measures 18 1/2 inches in length but can be adjusted across a range down to 16 1/2 inches in length. The pendant portion measures approx. 1 1/4 inches H x..