The birthstone for Cancer is ruby for those born in July, while Cancers born in June share the June birthstones — pearl, moonstone and alexandrite. Because Cancer spans 21 June to 22 July, the right stone depends on your birth month. This guide covers both, so every Cancer can find a gem that suits their style and story. (Zodiac associations are part of long-standing tradition rather than established fact.)
Cancer (21 June – 22 July) is a water sign ruled by the Moon, known for empathy, loyalty, intuition and a nurturing, protective nature. Cancers tend to treasure meaningful keepsakes and close emotional bonds — which is exactly why birthstone jewellery resonates so strongly with this sign.
If you’re a Cancer born in July, ruby is your birthstone. Its rich red has long symbolised warmth, courage and love in cultural tradition — qualities many feel complement Cancer’s gentle, heartfelt side. Ruby is also one of the hardest gemstones (9 on the Mohs scale), so it wears beautifully every day.
At Irosk, ruby comes as Created Ruby (lab-grown, ethical and affordable) or genuine Natural Ruby — both real ruby in 925 sterling silver. Browse our Cancer ruby jewellery, or learn more in our complete ruby guide.
Cancers born between 21 and 30 June share June’s three birthstones, each with its own character:
Explore the June Birthstone collection, or read the full June birthstone meaning guide.
For more on the June options, see Gemini and Cancer birthstones.
Ruby is the birthstone for July-born Cancers. Cancers born in June share the June birthstones — pearl, moonstone and alexandrite — because Cancer spans 21 June to 22 July.
It depends on birth month and style. July Cancers traditionally wear ruby; June Cancers often choose pearl, moonstone or alexandrite. Ruby suits bold, classic taste; pearl suits soft, understated style.
Ruby is July’s birthstone, and most of the Cancer period falls in July. In astrological tradition its warm symbolism is also seen as a complement to Cancer’s gentle nature.
