Get this Blue Topaz Ring, Earring and Pendant Necklace Set, normally $79.99, for $29.99 at My Jewelry Box. With free shipping, that's the best deal for this December birthstone set by $6. You can also get the same set with amethyst stones for this same price with this link, another price low. You'll get a pendant with a matching 18" chain, earrings, and a ring all set in sterling silver, totaling 4 carats. There is no sales tax (except NY).