The chain is silver plated and has a little pattern to it. Little crystals make up the constellation and are embedded in the hoop that holds the round medallion silver toned pendant charm. The chain is approximately 18 1/2 inches long. See photo with dime for size. Stunning Necklace! It is new and comes without tags in a little pouch. Bundle with other items in my closet for a special discount! Other listings: gold hoops silver beaded acetate drop cubic zirconia CZ rhinestone crystal bling boho bohemian diamond glam glittery sparkly sea shell pearl heart moon stars wine party link necklace pave hammered textured dangly dangle posts multi stud flower floral leaf layered paperclip large extra large medium small tiny big thick thin double triple multi wide thin twisted baby dipped stone shell disc stretch convertible chain starburst crystal drop silver ball filigree leaf lightweight mosaic earring trio set jeweled bejeweled jewel toned spring summer winter fall gifts present boutique linear bangle eternity ring tear drop cut carat anniversary fine coin vintage bridal solitaire wedding platinum natural tassel oval circle square round antique pear teardrop princess radiant aqua party halo sterling charm medallion statement new gem bar plated versatile chic everyday halo crystal gems stones delicate light weight earth planet star sun astronomy astrology lover gift for planets moon sky celestial moon pendant sky Pluto Saturn Mars Uranus shooting Venus moon science