Birthstones by month

The modern birthstone list, first set by the Jewelers of America in 1912 and updated since. Some months have more than one stone.

Month	Birthstone	Color	Hardness (Mohs)
January	Garnet	Deep red	6.5–7.5
February	Amethyst	Purple	7
March	Aquamarine	Pale blue	7.5–8
	Bloodstone	Dark green with red spots	6.5–7
April	Diamond	Clear	10
May	Emerald	Green	7.5–8
June	Pearl	White or cream	2.5–4.5
	Alexandrite	Green by day, red under lamplight	8.5
	Moonstone	Milky white with a blue sheen	6–6.5
July	Ruby	Red	9
August	Peridot	Olive to lime green	6.5–7
	Spinel	Red, pink, blue or black	8
	Sardonyx	Bands of red and white	6.5–7
September	Sapphire	Blue	9
October	Opal	Play of rainbow colors	5.5–6.5
	Tourmaline	Pink, green or many colors	7–7.5
November	Topaz	Golden orange (imperial topaz)	8
	Citrine	Yellow to amber	7
December	Turquoise	Sky blue to green	5–6
	Tanzanite	Violet-blue	6–7
	Zircon	Blue (most popular), clear or brown	6–7.5

What each birthstone means