Jewelry Shop › Lake Superior Agate Necklace Image 1 of 1 Lake Superior Agate Necklace $65.00 Sold Out Beautiful Siler Lake Superior Necklace with Lake Superior Agate cabochon. Made by Northern Raven Studio. Sold Out Added! Beautiful Siler Lake Superior Necklace with Lake Superior Agate cabochon. Made by Northern Raven Studio. Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More