This beautiful aquamarine necklace features a magnificent porpoise swimming in the deep blue sea on a hard-fired enamel and relic coin style 25mm medallion. This enamel porpoise necklace hangs on an 18” cayman green cord and even has an extender for customizing sizing.

Plus, not only does every piece of Guy Harvey Jewelry come with a numbered certificate of authenticity so you can rest assured it's the real deal, your purchase also triggers a donation to the non-profit Guy Harvey Ocean Foundation.