Nicole Wegman started Ring Concierge, a fine jewelry business specializing in bespoke engagement rings, in 2013 by posting and selling diamonds on Instagram. The biggest misconception Wegman sees when ...

Whether you own a diamond that’s sitting pretty on your left ring finger, nestled in a tennis bracelet or pronged on a pair of earrings, you want to know it’s good quality. But it’s hard to be sure.

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