4.50 Carat Green Prasiolite and .20 ct. t.w. White Topaz Ring in Sterling Silver. Size 5

STERLING SILVER: Also known as "Standard Silver," sterling silver is silver alloyed with other metals to increase the hardness and durability. Generally, sterling is 92.5% silver and 7.5% other metals. Some sterling silver jewelry is plated with 14kt-18kt gold and referred to as "vermeil," or "gold over sterling."

PRASIOLITE: A warm- to yellow-green variety of quartz. It is a rare gemstone in nature and often the color comes from the process of heat treatment. It is sometimes referred to as green amethyst or lime citrine.

ASSCHER: A variation of the classic emerald-cut gemstone with a square shape, cutoff corners, and large step cut facets.

TOPAZ: Available in a stunning selection of shades, the topaz's sky blue hue is one of the most popular colors for jewelry designs. Once thought to offer protection, today topaz is favored for its durability and affordability. Yellow topaz is the birthstone for November while blue topaz is for December.

BAGUETTE: An elongated rectangle step-cut. Typically used for smaller diamonds, but can be found in other gemstone as well.