The earliest examples of cloisonné were found in Mycenae in southern Greece, a civilization that had already come and gone by the 12th century BC.

In a nondescript Vietnamese workshop, Philippe Le is reviving the intricate, fire-forged art that is cloisonné enamel dials.

A tiny vase purchased from a U.K. thrift store for £2.50 ($3.20) by an eagle-eyed couple turned out to be a rare Japanese artifact that could sell for more than £10,000 ($13,000) when it heads to ...