You might have seen some of his popular jewelry designs -- the quarter moon, the elaborate scenes on the flip side of belt buckles, the curling alligator.

FORBES: Crafty

The Danish company with manufacturing facilities in Thailand is known for its widely popular charm jewelry.

FORBES: Pandora Names New CEO

He said the Year of the Pig has significance in the Chinese calendar, and noted that type of jewelry was popular in Asian cultures, but little other information had yet been gleaned from the jewelry.

WSJ: Suburban NY police probe remains found near shore

Mexico, for example, is a country that's big on traditions, where arty jewelry that denotes a religious belief is popular.

FORBES: Global Bling

Walker suspects the pendant belonged to someone aboard the ValuJet flight because Celtic jewelry was scarce in the 1970s and didn't become popular until the 1990s.

WSJ: Man hunting for pythons finds mysterious jewelry