Candy necklaces and ring pops look great, but many prefer the nuanced mouthfeel and clean finish of precious gems and metals. Show off sophisticated taste with the help of today's Groupon: for $49, you get $125 worth of interchangeable jewelry at Charlotte Ehinger-Schwarz on South Main Street.

Charlotte Ehinger-Schwarz jewelry is a mix-and-match jewelry system hand-crafted in Germany by the Charlotte Ehinger-Schwartz jewelry atelier. Each ring, earring, or neckring can interchangeably host any of the stones or jewels in the Charlotte Ehinger-Schwarz collection, giving accessories the numerous constructions of a Lego set with substantially more glamour. Using a high level of engineering ingenuity, base pieces simply detach from their decorations with a small tweezer-like tool; new jewels simply click into place. A Charlotte Ehinger-Schwarz jewelry starter set ($175) begins the rearranging with a ring and pendant in stainless steel. Both can be garnished with the included onyx bead, carnelian bead, ebony disc, or a freshwater pearl set in sterling silver. Stack masterpieces on other jewelry canvases such as a white ceramic ring with a pink pearl ($370) or a white leather cuff ($130), both pictured with various stone centerpieces.

Stone discs and accents from the 2010 collection further individualize each piece, requiring an equation with exponents to tabulate the possible permutations for accessorized accessories. Find inspiration from the combinations of the month to create an elaborate piece to wear on your morning jog. Then morph your accessories for a quick jaunt home to ensure that your ringtone isn't the only gem with variety.

All items must be purchased in-store and are subject to availability.