January Birthstone: Garnet
Updated November 6, 2026 · Edited by the JanuaryCalendar.com team
The January birthstone is garnet, a group of silicate minerals best known for deep red stones but also found in orange, green, purple and pink. Garnet was named January's stone on the first standardized US birthstone list in 1912 and still holds that place on modern lists. It rates 6.5 to 7.5 on the Mohs hardness scale, durable enough for most jewelry.
- Birthstone
- Garnet
- Mineral group
- Garnet group (silicates)
- Most common color
- Red
- Mohs hardness
- 6.5–7.5
- Name origin
- Latin granatum (pomegranate)
- Anniversary gem
- 2nd wedding anniversary
Why garnet is the January birthstone
In 1912 the National Association of Jewelers, now Jewelers of America, met in Kansas City and adopted a standard list of birthstones for the United States. Garnet was assigned to January, and every later revision of the list has kept it there. On the standard US list, garnet is the only January birthstone, so it applies to all 31 days of January.
The name comes through Middle English from the Latin granatum, meaning pomegranate. Small red garnet crystals look much like pomegranate seeds, which is the usual explanation for the name.
Garnet sits alongside January's other traditional symbols: the carnation and snowdrop as the January birth flowers, and Capricorn and Aquarius as the January zodiac signs. More of the month's traditions are collected in the January facts guide.
Garnet types and colors
Garnet is not a single mineral but a group of silicate minerals that share the same crystal structure and differ in chemistry. Gemologists recognize several species, and many gem garnets are natural blends of two or more of them.
| Species | Typical colors | Notes |
|---|---|---|
| Pyrope | Deep red, sometimes brownish red | The classic "Bohemian garnet"; rhodolite, a purplish-red to pinkish garnet, is a pyrope-almandine blend |
| Almandine | Dark red to purplish red | The most common garnet species |
| Spessartine | Orange to reddish orange | Bright orange stones are sold as "mandarin garnet" |
| Grossular | Green, yellow, orange, brown, colorless | Includes green tsavorite and orange-brown hessonite |
| Andradite | Green, yellow, brown, black | Includes green demantoid, prized because its fire (dispersion) exceeds that of diamond |
| Uvarovite | Emerald green | Usually forms tiny crystals and is rarely faceted |
Red is by far the most common garnet color, ranging from brownish red to purplish red. Garnet also occurs in orange, yellow, green, pink, purple, brown and black. Some garnets, usually pyrope-spessartine blends, are color-change stones that look different in daylight than under incandescent light. Blue is the rarest garnet color and is known mainly in color-change stones.
Hardness, uses and where garnet is found
Garnet rates 6.5 to 7.5 on the Mohs scale, depending on the species. That suits earrings, pendants and brooches well. Stones in rings worn every day can pick up scratches and worn facet edges over the years.
The same hardness makes garnet useful outside jewelry. Crushed garnet is used as an abrasive in sandpaper, sandblasting and waterjet cutting.
Well-known gem sources include:
- Czech Republic: pyrope from Bohemia, the "Bohemian garnet" set in much 19th-century European jewelry.
- India and Sri Lanka: long-standing sources of red garnet; Sri Lanka is also known for hessonite.
- East Africa: Kenya and Tanzania produce tsavorite, named after Kenya's Tsavo National Park.
- Russia: the Ural Mountains are the classic source of demantoid.
In the United States, garnet is the state gem of New York, star garnet is the state gem of Idaho, and almandine garnet is the state mineral of Connecticut.
Garnet meaning and symbolism
In folklore, garnet is most often linked with friendship, trust, loyalty and protection. A long-standing legend holds that travelers carried garnets to keep them safe on the road. These are traditions and beliefs, not proven properties of the stone.
Garnet also has a long history in jewelry. Gold-and-garnet cloisonné fittings were among the treasures found in the 7th-century Sutton Hoo ship burial in England, and garnet jewelry was widely worn in the Victorian era.
Modern anniversary gemstone lists name garnet as the gem for the 2nd wedding anniversary.
How to clean and care for garnet
Warm soapy water and a soft brush are the safest way to clean garnet. Rinse well to remove soap film and dry the piece with a soft, lint-free cloth.
- Avoid high heat and sudden temperature changes, which can cause fractures.
- Skip steam cleaning, and ask a jeweler before using an ultrasonic cleaner, especially for stones with fractures, fillings or many inclusions.
- Remove garnet rings for gardening, workouts and household cleaning to avoid knocks, abrasion and harsh chemicals.
- Store garnet apart from harder gems such as diamond and sapphire, which can scratch it, and from softer ones such as pearls and opal, which garnet can scratch.
Buying garnet: natural, lab-created or imitation
Most garnet sold in jewelry is natural, and garnets are rarely treated. Because red almandine and pyrope are relatively affordable, lab-grown copies of natural garnet species are uncommon. Know the three categories before buying:
- Natural garnet is mined. Ask the seller to confirm the stone is untreated.
- Lab-created garnet-type materials such as YAG (yttrium aluminum garnet) and GGG (gadolinium gallium garnet) share garnet's crystal structure but have no natural counterpart. Both were once widely used as diamond imitations.
- Imitations include red glass and cubic zirconia, often labeled "garnet-colored" or "simulated garnet." Older imitations include doublets, a thin slice of garnet fused onto colored glass, once widely used to imitate other gems.
Ask which species or variety the stone is, such as almandine, rhodolite, spessartine or tsavorite, because that affects value. Judge color first, then clarity and cut. Most red garnets are eye-clean, while in demantoid fine fibrous "horsetail" inclusions are prized. View color-change stones in both daylight and indoor light, and request a lab report for rare varieties such as demantoid or tsavorite.
Price depends mostly on species and quality. Common red garnets cost far less than ruby or sapphire, while fine demantoid, tsavorite and color-change garnets are rare and can be costly, especially in larger sizes.
Frequently asked questions
What color is the January birthstone?
Garnet is best known in deep red, its most common color. It also occurs in orange, yellow, green, pink, purple, brown and black, while blue garnet is extremely rare.
Is garnet expensive?
Common red garnets such as almandine and pyrope are among the more affordable colored gems. Rare varieties such as demantoid, tsavorite and color-change garnet cost much more, and price rises with color, clarity and size.
Can you wear garnet every day?
Yes, with some care. Garnet rates 6.5 to 7.5 on the Mohs scale, so it holds up well in pendants and earrings, while ring stones may scratch after years of contact with hard surfaces.
Is garnet the same as ruby?
No. Ruby is red corundum and rates 9 on the Mohs scale, while garnet belongs to a different mineral group and rates 6.5 to 7.5. Before modern gem testing, red garnets and rubies were often confused.
What does garnet symbolize?
By tradition, garnet stands for friendship, trust, loyalty and protection. These meanings come from folklore and jewelry custom rather than any proven property of the stone.