Your investment Puka shells or the old fashioned wave pendants your grandmother bought in Hawaii. Today, the hottest trend inHawaiian jewelry within wood �€“ KOA wood, to be exact. Koa grows only in Hawaii and possesses beautiful swirling grain patterns unseen in a other wood.Koa from the Big Island of Hawaii is commonly employed to create beautiful personal accessories and even koa jewelry worn by trendy natives, Kama�€