The Blood of Isis: Red Jasper’s Ancient Link to Fertility

There’s a name for the stone we all know as red jasper: the Blood of Isis.

It sounds dramatic but it actually comes straight from the Egyptian Book of the Dead, attached to one of the most sacred protective amulets in ancient Egypt.

Who was Isis:

Isis was one of the most powerful goddesses in the Egyptian pantheon. Great magician, devoted wife to Osiris, fiercely protective mother of Horus. Isis and Osiris presided over what ancient Egyptians considered a mythical golden age, bringing order and civilization to humanity.

Set, the ancient god of chaos and violence and also Osiris’s brother, was full of jealousy and killed Osiris to take the throne of Egypt.

Isis gave birth to Horus in secret and fled to the dangerous papyrus swamps of the Nile Delta to keep him safe, protecting her son using magic, secrecy, and fierce maternal devotion while hiding him from his jealous uncle.

The Knot of Isis:

The legend says Isis wept tears of blood while mourning Osiris, and those tears crystallised into red stone, from which she carved her own tyet. Isis is closely linked to a symbol called the tyet, also known as the Knot of Isis. It looks a little like an ankh with its arms folded, it was placed in Isis’s womb to protect her unborn baby from being harmed by Set. This symbol shows up again and again in Egyptian jewellery and tomb art.

The tyet was almost always made from something red. Red jasper, carnelian, sometimes even red glass, which was genuinely difficult to produce at the time. It’s predominantly red because ancient Egyptians explicitly linked it to maternal blood, life force, and the protective powers of the goddess. Red was also the colour of fire, evoking warmth, life-giving energy, and aggressive protection against evil forces

Chapter 156 of the Book of the Dead details this further. Basically the tyet was placed at the throat of the deceased, carved from red jasper or carnelian, to call on Isis’s protection. Even Tutankhamen was buried wearing one. Many would consider this as folklore but it’s an actual documented ritual practice.

The fertility connection:

Tyet amulets have been discovered in tombs placed between the legs of women who died pregnant, clearly meant as protection into the next life. Between that and Isis’s own story as a mother who protected her child against the odds, red jasper became linked to fertility, pregnancy, and a woman’s fuller fertile cycle. People have carried this exact stone for this exact reason for thousands of years, all named after the blood of a mother goddess.

If you’re drawn to red jasper for fertility support, grounding, or simply feeling more rooted in your own body, you’re tapping into a tradition thousands of years old.

Explore our red jasper tumble stones and crystal collection in the shop.

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