Antique Art Nouveau Tourmaline Peridot and Seed Pearl Lavalier Necklace in 18k Yellow Gold (c. 1905)

Beautiful antique lavalier necklace in 18k yellow gold featuring bright olive green peridot & pink-violet tourmaline stones, and seed pearls dating to the "Art Nouveau" period (circa 1890). The necklace is on a 1.34mm chain and has a 15k yellow gold push clasp.   ID: NEC654 Peridot: One (1) prong set, cushion cut peridot stone measuring approximately 5.09mm x 4.53mm x 4.04mm.  Two (2) prong set, pear cut peridot stones measuring approximately 6.9mm (L) x 4.28mm (W) 2.8mm (D)  Violet Tourmaline: Three (3) prong set, round cut tourmaline measuring 4.4-4.5mm and 3.4-3.6mm each in diameter Seed Pearls: Fifty-six (56) seed pearls ranging from 2.3-2.6mm to 0.85mm each in diameter Metal: 18k yellow gold, 15k yellow gold clasp Length: 15 1/4"  Drop Length: 2 1/4"  Weight: 9.57g Chain Width: 1.34mm Markings: '18CT' '15CT'