Amethyst
Various shades of purple, from red to brown. Since amethysts are not especially rare, they tend to be very affordable.
Emerald
Various shades of green from yellow to blue. This is a gem of royalty. Emeralds can cost as much as, if not more than, many diamonds.
Garnet
Old-fashioned stones ranging from yellow-orange to brown to true red to purple. These are not so rare and are another affordable stone.
Ruby
A precious stone that ranges in color from blue to orange to true red.
Sapphire
Various shades of blue, from light to true to green. A traditional side stone on many diamond rings.
Topaz
The look: Various hues, including pink, blue, yellow, orange, and brown. Best for: A cocktail ring at your bachelorette party.
