Hot right now and ideal for the holidays, our obsession with geode-inspired jewelry began with Forty Five Ten featured designer, Kimberly McDonald. Launched in 2006, her collection showcases the crystalline formations with raw gems and precious metals (shown above).   Dallas is scooping up McDonald’s pieces left and right, but the Kabbalah Bracelet in red is still in stock and among our faves. Each is a unique, one-of-a-kind work of art ($3,520, below).   Inspired, though experiencing a bit of sticker shock, our continuing quest for geodes then resulted in a stunning and more gently-priced option via Metropark. By Dara Ettinger, we love these Kerri Geode Earrings ($145, below). From Earth Relics Jewelry Company, a striking oblong pendant ($32, below) adds an electroformed edge of 18k gold plate. Another Dara Ettinger design, the Sharon Geode Slice Cocktail Ring ($155, below) is available from Max & Chloe. An adjustable band makes it an ideal gift option – that is, if you can resist keeping it for yourself.     Finally, Couture Candy features Heather Gardner’s Gold Wrapped Geode Earrings in tan ($173, below). This trend shows staying power into 2013, combining natural instincts with the current boom in statement-making jewels. Whether you choose an investment piece or a fun impulse purchase, geodes make beautiful ornaments for holiday and beyond.     (Photo credits, from top: 1. FortyFiveTen.com, 2. FortyFiveTen.com, 3. MetroparkUSA.com, 4. EarthRelics.com, 5. MaxandChloe.com, 6. CoutureCandy.com)