Birthstones are a thoughtful way to celebrate someone you love. Our guide is endorsed by the American Gem Society. Find your stone below or shop the collection.
JANUARY
GARNET
Deep red and richly saturated, garnet is one of the most durable colored stones and has been prized as a gemstone for thousands of years.
FEBRUARY
AMETHYST
Purple quartz ranging from pale lilac to deep violet, amethyst has been prized since antiquity for its rich color and clarity.
MARCH
AQUAMARINE
Named for the color of the sea, aquamarine is a cool blue-green stone long given as a wedding day gift.
APRIL
DIAMOND
The hardest natural substance on earth, a well-cut diamond produces unmatched fire and brilliance. Underwoods selects only from the top 5% of diamond quality available.
MAY
EMERALD
Rich green and deeply saturated, emerald has been among the most prized colored stones for millennia.
JUNE
PEARL / ALEXANDRITE / MOONSTONE
Three distinctive stones. Alexandrite shifts from green to reddish-purple with the light. Underwoods sources pearls directly from Kobe, Japan. Moonstone has a blue-white shimmer that moves as you do.
JULY
RUBY
Among the rarest and most valuable colored gemstones in the world, a fine ruby's deep red color comes from chromium.
AUGUST
PERIDOT / SPINEL
Peridot forms in only one color, a vivid yellow-green caused by iron. Spinel, added to the official list in 2016, comes in a wide range of colors, including vibrant reds and blues.
SEPTEMBER
SAPPHIRE
Most associated with deep blue, sapphires occur in nearly every color except red. Fine blue sapphires are among the most sought-after colored gemstones in the world.
OCTOBER
TOURMALINE / OPAL
Tourmaline occurs in a wider range of colors than almost any other gemstone, from deep red to vivid green to neon blue. Opal shows an iridescent play of color that shifts with the angle of light.
NOVEMBER
TOPAZ
Imperial Topaz is a warm orange-pink and among the rarest topaz varieties. Citrine is warm yellow to orange quartz, prized for its clarity.
DECEMBER
TANZANITE / ZIRCON / TURQUOISE
Tanzanite is found only in a small area of Tanzania and shifts from blue to violet depending on the angle of light. Added to the official birthstone list in 2002 by the American Gem Trade Association, it is one of the world's rarest colored stones.
