Jewelry can make an outfit sparkle, though only exposure to dangerous amounts of radiation can make it truly glow. Stay safe while looking sharp with this Groupon: for $49, you get $200 worth of designer jewelry from SweepStreet.

The bauble buffs at SweepStreet stock their virtual shelves with a rotating trove of name-brand jewelry from designers such as David Yurman, Judith Ripka, and John Hardy. Every piece is discounted at 40%–60% off the retail price, and new items are added to the mix every day. A Gucci sterling-silver black-onyx ring ($170) wraps one lucky digit in a simple chrome design, and the silver O-shaped pendant from Adami & Martucci ($55.50) dangles demurely from necks. A Judith Ripka cushion-stone blue quartz ring ($240) gives fingers their own power shoulders adorned with textured sterling-silver detailing, and a pair of Rebecca hoop earrings ($132.50) circumscribes a chain link pattern with sterling silver. Alternatively, the mint-green quartz of Judith Ripka's delicate large heart-stone enhancer ($500) beautifully complements a pair of Scott Kay sterling-silver citrine earrings ($325).