- Ancient Circles
 - Laytonville - Celtic design, mythological images, sacred geometry from ancient cultures in brass, bronze and sterling silver jewellery. - Chatham Created Gems
- San Francisco - Emeralds, rubies, sapphires, and alexandrites.
- Mountain Lily Gems
- El Sobrante - Sells custom cut coloured gemstones from documented mine sources.
- NJWintrup
- San Francisco - 14K gold, platinum and sterling silver jewellery featuring various themes. Also custom work, restoration and repair.
- Shahasp Designs
- San Francisco - Creates jewellery melding antiquity with a hip '90's aesthetic including head-pieces and waist-chains.
- Smith Jewelers
- Danville - For one of a kind, custom designs. Specialising in fine, ideal cut diamonds and gemstones for over 22 years. Member of the American Gem Society.
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