Journal
What's My Birthstone? A Month-by-Month Guide to Every Gemstone
September 30, 2026
Stand in front of any jewelry counter long enough and someone will eventually ask, "Wait, is my birthstone the purple one or the green one?" It's a fair question. Birthstones get mixed up constantly, half-remembered from a grandmother's ring or a horoscope app, and the answer matters more than it might seem — because once you know your stone, a whole category of jewelry (and gifting) suddenly makes a lot more sense.
Here's the complete, accurate, month-by-month guide to birthstones: what they are, where the tradition comes from, and how to actually wear one in real life.
Where Did the Birthstone Tradition Come From?
The idea of tying a gemstone to a birth month is old — it's often traced back to the Breastplate of Aaron described in the Book of Exodus, which set twelve gemstones into a piece of ceremonial jewelry, one for each tribe of Israel. Centuries later, that idea evolved into the birth-month associations we use today. The modern list was standardized in 1912 by the National Association of Jewelers (now Jewelers of America), and it's the version most Western jewelers, including Ammy & Co, still follow.
A few months have more than one accepted stone, which is why you'll sometimes see two options listed for the same birthday. Both are correct; it usually comes down to availability, color preference, or which one a particular jeweler carries.
Find Your Birthstone by Month
| Month | Birthstone | Color | Symbolism |
|---|---|---|---|
| January | Garnet | Deep red | Protection, strength, friendship |
| February | Amethyst | Purple | Calm, clarity, wisdom |
| March | Aquamarine | Pale blue | Courage, serenity, clear communication |
| April | Diamond | Clear/white | Strength, everlasting love |
| May | Emerald | Green | Renewal, growth, love |
| June | Pearl / Alexandrite | White / color-changing | Purity, adaptability |
| July | Ruby | Red | Passion, vitality, confidence |
| August | Peridot | Lime green | Positivity, good fortune |
| September | Sapphire | Blue | Wisdom, loyalty, nobility |
| October | Opal / Tourmaline | Iridescent / multicolor | Creativity, hope, individuality |
| November | Citrine / Topaz | Golden yellow | Warmth, joy, abundance |
| December | Turquoise / Tanzanite / Blue Zircon | Blue-green / blue-violet | Protection, tranquility, fresh starts |
A quick note on accuracy: birthstone lists you'll find online don't always agree with each other, especially for the "alternate" months. If you're buying a gift and want to get it exactly right, the safest move is to ask the birthday person directly, or check which stone is engraved on family jewelry they already wear.
How to Wear Your Birthstone
Once you know your stone (or someone else's), the next question is how to actually wear it. A few of the most popular ways:
- As a pendant necklace — the most classic format, worn alone as a everyday piece or layered with a chain necklace for more presence.
- Paired with an initial — combining a birthstone with a letter pendant is one of the most requested styles because it personalizes a piece two ways at once.
- As a ring or set of stacking rings — a subtler way to carry a birthstone that works well for daily wear at a desk or in the kitchen.
- As stud or huggie earrings — a good option for anyone who wants their birthstone represented without a pendant sitting at the neckline.
Necklaces remain the most popular format for birthstone jewelry specifically, since the pendant gives the stone room to actually be seen. If you're browsing options, Ammy & Co's necklace collection is a good place to see how birthstone pendants sit alongside chain lengths and layering pieces.
Sterling Silver or 18K Gold Vermeil: Which Suits Your Stone?
Every Ammy & Co birthstone piece comes in a choice of 925 Sterling Silver or 18K Gold Vermeil, and the "right" one really comes down to skin tone, wardrobe, and what you already wear day to day — there's no rule that a particular stone only works in one metal.
That said, a few pairings tend to photograph and wear especially well:
- Cooler stones like aquamarine, sapphire, and amethyst tend to pop against the bright, cool tone of sterling silver.
- Warmer stones like citrine, peridot, and garnet often look richer set in warm 18K gold vermeil.
- If you already mix metals in your everyday jewelry, don't overthink it — both options are plated or finished to hold up to daily wear, and most people end up owning their birthstone in both over time.
Birthstone Jewelry as a Gift
Birthstone pieces are one of the easiest "you thought about this" gifts to give, because the personalization is built in without requiring an engraving or a monogram. A few situations where it tends to land well:
- A first birthday gift for a new partner, when you want something more personal than flowers but don't know their exact taste yet.
- A milestone birthday, paired with a card explaining the stone's meaning.
- A push present or new-baby gift, using the baby's birth month rather than the parent's.
- A "just because" gift that still feels considered rather than generic.
If you're shopping for someone specific, Ammy & Co's birthstone jewelry collection is organized so you can shop by month directly, rather than hunting through a general catalog trying to match colors from memory. It's also worth a look if you're shopping ahead for birthdays later in the year — the birthday gifts collection pulls together pieces that work well as a birthday-specific gift beyond just birthstones.
Shop Birthstone Jewelry, Available in Every Birth Month
Two of our most-loved birthstone styles, shown here and available for all twelve birth months in 925 Sterling Silver and 18K Gold Vermeil:
Simply select your birth month from the dropdown on either product page. Want to browse everything at once? See the full birthstone jewelry collection.
Common Birthstone Questions
What if I was born in a month with two birthstones?
Wear whichever one you like more, or whichever one you can find in the style you want. Neither option is "more correct" than the other — the alternates exist because different regions and jewelry associations adopted slightly different lists over the last century.
Can I wear a birthstone that isn't mine?
Yes. There's no rule against it. Some people choose a stone for its color or meaning rather than their birth month, and plenty of birthstone jewelry gets gifted using the recipient's birth month rather than the giver's, or a child's birth month worn by a parent.
Do birthstone colors ever vary?
Slightly, yes. Natural gemstones have color variation depending on the specific stone, and lab-created or synthetic versions used in fine jewelry are cut for consistency, so the exact shade can differ a little between pieces even within the same birth month.
Is birthstone jewelry only for birthdays?
Not at all. It works just as well as an anniversary gift, a graduation gift, or a piece you buy for yourself with no occasion attached — the birth month is simply what ties the stone to the wearer.
The Short Version
Every month has an assigned gemstone, a few have two, and the tradition is old enough that it shows up in ceremonial jewelry from thousands of years ago. Knowing your own birthstone — or a loved one's — turns a fairly ordinary jewelry decision into one with a little more meaning attached, whether you're buying for yourself or picking a gift that says you paid attention.