A vintage sterling silver chain necklace with a gemstone pendant. The faceted round garnet stone is framed with an Art Deco style filigree ornament made of marcasite. The chain has a 925 Italy hallmark on the lock. Weight: 4 grams. All marked and unmarked gold and silver jewelry, including those bundled with marked pieces, have been tested using a Niton DXL XRF Analyzer which is an X-ray style tester which is used by most gold processing facilities, gold recyclers, refiners and/or mining operations in the industry. ll Precious and Semi-Precious Stones Have Been Tested with a Presidium Duotester. Though this is a professional instrument, we are not certified gemologists and cannot guarantee the authenticity of any gemstone unless stated in the description. Gemstones are measured with a Presidium Duo II and does not distinguish between natural and synthetic gems and or materials. Vintage Art Deco Silver Jewelry Necklaces Pendants For Women.