Birthstones by Month

January – Garnet

Garnets are attributed with the power of protecting you from nightmares and snakebites, and also to provide you guidance in the dark. Tradition connects the stone with blood. They are a popular choice as presents for second wedding anniversaries

Garnets are a group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives. All species of garnets possess similar physical properties and crystal forms, but differ in chemical composition. Wikipedia
Mohs scale hardness: 6.5–7.5
Crystal habit: Rhombic dodecahedron or cubic
Crystal system: Isometric
Optical properties: Single refractive, often anomalous double refractive
Space group: Ia3d
Formula (repeating unit): The general formula X3Y2(SiO4)3
Color: virtually all colors, blue very rare

February – Amethyst

Amethysts are believed to induce peace, serenity and temperance in you, plus it will restrict sensual and alcoholic intoxication, which may be good or bad. In addition, amethyst can improve your skin and hair, and will prevent baldness. It will protect you from deceit. Its purple shade is linked to royalty and makes an ideal gift for the sixth wedding anniversary.

Amethyst is a violet variety of quartz often used in jewelry. The name comes from the Koine Greek ἀμέθυστος amethystos from ἀ- a-, “not” and μεθύσκω methysko / μεθύω methyo, “intoxicate”, a reference to the belief that the stone protected its owner … Wikipedia
Color: Purple
Luster: Vitreous
Birthstone zodiac sign: Aquarius
Associated month: February
Crystal system: Hexagonal crystal system
Chemical formula: SiO₂

March – Aquamarine

Aquamarine has lovely attributes of good health, love, youthfulness, and hope. Sailors believe in its protection. Generally chosen as a 19th anniversary gift, this stone is in the beryl family, the same as emerald. Bloodstone is the astrological alternative.

Beryl is a mineral composed of beryllium aluminium cyclosilicate with the chemical formula Be3Al2(SiO3)6. Well-known varieties of beryl include emerald and aquamarine. Naturally occurring, hexagonal crystals of beryl can be up to several meters in size, but terminated crystals are relatively rare. Pure beryl is colorless, but it is frequently tinted by impurities; possible colors are green, blue, yellow, red (the rarest), and white.

Color: Blue
Luster: Vitreous
Birthstone zodiac sign: Pisces
Associated month: March
Crystal system: Hexagonal crystal system
Chemical formula: Be₃Al₂SiO₆
Hardness (Mohs hardness scale): 7.5 – 8

April – Diamond

Diamonds are traditionally linked to love, and both endure forever because of diamond’s eternal strength. The name diamond is derived from the Greek adamas, which means invincible. Traditionally diamond is accepted as the 10th and 60th wedding anniversary presentations.

Diamond is a metastable allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice. Wikipedia
Mohs scale hardness: 10 (defining mineral)
Density: 3.5– 3.53 g/cm3
Crystal habit: Octahedral
Crystal system: Cubic crystal system
Crystal class: Hexoctahedral (m3m); H-M symbol: (4/m 3 2/m)
Formula mass: 12.01 g/mol

May – Emerald

Emeralds will cure you of bad health, healing a variety of illnesses and insuring good health for the wearer. Also, it was believed that the wearer of emerald could see into the future. 55th Wedding anniversary gift. 

Emerald is a gemstone and a variety of the mineral beryl colored green by trace amounts of chromium and sometimes vanadium. Beryl has a hardness of 7.5–8 on the Mohs scale. Wikipedia
Color: Green
Luster: Vitreous
Birthstone zodiac sign: Taurus
Associated month: May
Crystal system: Hexagonal crystal system
Chemical formula: Be₃Al₂SiO₆

June – Pearl, Alexandrite, Moonstone

The romantic pearl is associated with chastity and modesty. Stable marriages are said to be the result of pearls. Traditionally Pearl is the 30th wedding anniversary gift. 

A pearl is a hard glistening object produced within the soft tissue of a living shelled mollusk or another animal, such as a conulariid. Wikipedia
Color: Grey, Pink, Purple, Black, Blue, White, Yellow, Brown, Green, Orange
Luster: Pearly
Associated month: June
Crystal system: Amorphous solid
Hardness (Mohs hardness scale): 2.5 – 4.5
Mineral class: Aragonite, Conchiolin

July – Ruby

Rubies will bring harmony of life to the wearer, so one can expect a peaceful life when wearing this stone. Ruby is the 40th wedding anniversary gift.

A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). Other varieties of gem-quality corundum are called sapphires. Ruby is one of the traditional cardinal gems, together with amethyst, sapphire, emerald, and diamond.The word ruby comes from ruber, Latin for red. The color of a ruby is due to the element chromium.

The quality of a ruby is determined by its color, cut, and clarity, which, along with carat weight, affect its value. The brightest and most valuable shade of red called blood-red or pigeon blood, commands a large premium over other rubies of similar quality. After color follows clarity: similar to diamonds, a clear stone will command a premium, but a ruby without any needle-like rutile inclusions may indicate that the stone has been treated. Ruby is the traditional birthstone for July and is usually more pink than garnet, although some rhodolite garnets have a similar pinkish hue to most rubies

August – Peridot

Peridot is believed to protect the wearer from evil, particularly from the forces of darkness. It can also increase the healing power of medicinal drugs.

Peridot is gem-quality olivine, which is a silicate mineral with the formula of (Mg, Fe)₂SiO₄. As peridot is the magnesium-rich variety of olivine, the formula approaches Mg₂SiO₄. Wikipedia
Color: Green, Yellow
Luster: Vitreous
Birthstone zodiac sign: Leo
Associated month: August
Crystal system: Orthorhombic crystal system
Chemical formula: (Mg,Fe)₂SiO₄
Hardness (Mohs hardness scale): 6.5 – 7

September – Sapphire

Faith and purity will come to the wearer of this stone. Common belief said brighter the glitter of the stone, the stronger the positive virtues, plus giving the lucky person useful foresight into the future. 45th Wedding anniversary

Sapphire is a gemstone, a variety of the mineral corundum, an aluminium oxide. It is typically blue, but natural “fancy” sapphires also occur in yellow, purple, orange, and green colors; “parti sapphires” show two or more colors. Wikipedia
Color: Blue, Yellow, Pink, Black, Green, Purple, White, Orange, Grey, Brown
Luster: Vitreous, Adamantine
Birthstone zodiac sign: Virgo
Associated month: September
Crystal system: Hexagonal crystal system
Chemical formula: Al₂O₃
Hardness (Mohs hardness scale): 9

October – Opal, Tourmaline


Opals are stones of hope and bringers of the virtues of innocence and purity. Opals stimulate healing and increase friendship and healthful emotions. 34th Wedding anniversary.

Opal is a hydrated amorphous form of silica; its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Wikipedia
Color: Pink, Blue, Black, White, Green, Purple, Red, Yellow, Grey, Brown, Orange
Luster: Vitreous, Waxy, Pearly
Birthstone zodiac sign: Libra
Associated month: October
Crystal system: Amorphous solid
Chemical formula: SiO₂·nH₂O

November – Citrine

This gem is associated with life and strength of body and mind. It was once thought that the wearer would become invisible when danger was near. 13th wedding anniversary gemstone

December – Tanzanite

Tanzanite is the modern 24th wedding anniversary gift

Tanzanite is the blue and violet variety of the mineral zoisite belonging to the epidote group. The gemstone was discovered by Manuel d’Souza in the Merelani Hills of Manyara Region in Northern Tanzania … Wikipedia
Color: Blue, Purple
Luster: Vitreous
Associated month: December
Crystal system: Orthorhombic crystal system
Chemical formula: Ca₂Al₃(SiO₄)₃(OH)
Hardness (Mohs hardness scale): 6 – 6.5
Mineral class: Zoisite

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