Bicolor and parti-color gems, with their play of multiple hues, are a popular choice for stunning statement pieces and alternative engagement rings.
Going Grey
Silver-hued varieties of spinel, sapphire and other stones are taking the fashion world by storm.
Zircon Zeitgeist
Not to be confused with cubic zirconia, this natural stone comes in an array of hues and can be just as glamorous as a diamond.
Tantalizing in Tanzania
The nation celebrates its blue-violet Tanzanite, but its vivid spinels and garnets also dazzle.