Loft Green and Silver Toned Necklace with Extender

Loft Green and Silver Toned Necklace with Extender. Greenish faceted stones with a four strand silver toned chain on sides and back. Stones almost have a plaid look to them as the light touches them. Signed Loft. Unknown material type of stones and metal, stones feel like plastic to me on the front but almost more like glass in back, possibly mirror back with plastic over to give dimension, but I cannot be sure. The chains have 4 somewhat twisted strands that gather at lobster claw clasp. There is an extender to adjust length. Nice preowned condition. Possibly some very light marks typical of preowned jewelry but none that I noticed. Clasp works well. See photos for condition and measurements.