The ammonite in these earrings is cut from one fossil, so they are an identical match. The ammonites are about 18x22mm. They are wire wrapped in a free form style with 14k gold filled wire. The handmade shepherd's hook ear wires are also 14k gold fill.
Madagascar ammonites are between 200 and 600 million years old.
Also pictured is the matching pendant, sold separately. http://www.etsy.com/listing/58417713/avalon-pendant-ammonite
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