This is a gorgeous, delicate, antique Art Deco necklace. I believe the stones to be cut glass or perhaps crystal but I dont know for sure. The clasp works but doesnt always line up so could use some adjusting. It is approximately 15 inches in length and all stones are there, none are missing.
The clasp is stamped platinon but no other markings. Platinon is a rare metal alloy invented to imitate platinum. Jeweler John Wall of Birmingham UK produced and featured jewelry made of platinon at the British Industries Fair in 1922 and 1929, marketing it as The Reputable Platinum Imitation - Finest Finish - Untarnishable. It was used for a brief period of time to produce high quality pieces of costume jewelry which are now increasingly difficult to find. The metal most closely resembles the color of sterling silver with a natural patina or a soft gunmetal color, however, it does not tarnish.
The item "Antique Bezel Art Deco Cut Glass Paste necklace Platinon Stamped" is in sale since Sunday, August 18, 2019. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Costume\Art Nouveau/Art Deco 1895-1935\Necklaces & Pendants". The seller is "oxford-road-vintage" and is located in Palo Alto, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Belize, Turks and caicos islands, Bermuda, Viet nam, Uruguay, Russian federation.