To secure their glistening baubles from sneaky pearl divers, oysters hide all their necklaces in treasure chests disguised as sleeping sharks. Sport the attractive spoils of shark defiance with today’s Groupon: for $79, you get an 18-inch pearl necklace in a choice of eight colours from My Pacific Pearls (a $450 value).

My Pacific Pearls gathers pearls from the Pacific region that go on to live above-sea-level lives as opulent necklaces, earrings, and other classic and contemporary pieces. The Maria-Theresa Reef Collection's 18-inch princess-style necklaces carry 9- to 10-millimetre pearls and come in eight naturally-acquired colours, including classic white, Tahitian black aubergine, Tahitian black peacock, peach, gray, pink, golden, and multicolour. A 14-karat white-gold clasp unites the land's precious fabric with the sea's, and after a long day of neck draping, a complimentary satin or velour pouch securely tucks necklaces in with a kiss and a bedtime story. The pearls, which hail from oyster villages that stretch from the South Pacific to the Celebes Sea, link to form a bauble whose versatile length is intended to complement necklines. Each necklace comes with high ratings for luster, nacre, surface, shape, and pearl matching.

With this Groupon, customers also receive two $50 vouchers toward future purchases of any item $100 or more among the wide array of jewellery on the My Pacific Pearls website. As with actual princesses, each princess necklace comes with care instructions and a certificate of authenticity and valuation.