A Blonde and Her Bag Mrs. Parker Necklace in Chalcedony - Brass Chain. Mrs. Parker Simple Chain With Chalcedony Necklace in Gold or Silver Colored Brass Chain. A semi-precious chalcedony stone set in a 14k gold fill bezel sitting on a gold or silver colored brass chain. These necklaces will vary slightly due to the individual nature of the stones which are semi-precious and unique. Size - 16" Length, 3-3.5mm Stone Chain Hypoallergenic This product is made of metal alloy (silver and copper and other metal alloy) with high quality plating (It will last for a long time without tarnish). Handmade with love in Sausalito, California