How do I tell if Mikimoto pearls are real?

To tell if Mikimoto pearls are real, look for the brand's hallmark. Depending on the piece, you may see an outline of an oyster or the full brand name. On necklaces and bracelets, the mark is on the back of the clasp. Earrings show it along the post, while pendants bear the name on the back of their bails. On 1stDibs, find a collection of expertly vetted Mikimoto pearl jewelry.