Here are some sites we're fond of:
Sapphire & Sage - Renaissance Jewelry and Accessories
Hand-created Medieval and Renaissance Era reproductions for weddings, handfastings, reenactments and faires - specializing in period-inspired jewelry design, including girdle belts, necklaces, bodice jewelry, brooches, circlets, collars, rings, period rosaries/paternosters, beaded trim, loose pearls and stones, and more. Custom orders welcomed.