The facts
What bloodstone actually is
The species behind bloodstone is chalcedony, SiO₂; it forms in the trigonal system.
Chlorite for green, iron oxide for the red flecks is responsible for the colour — and the chromophore, not the name, is what decides whether a colour is stable.
On the instruments it reads a refractive index of 1.530–1.540 and a specific gravity of about 2.58–2.64, with none cleavage.
Where bloodstone comes from
Commercial material comes from Maharashtra, India, Brazil and Australia.
Different localities give different colour and different clarity, and the trade prices them differently. We state which one.
Is bloodstone treated?
None normally.
That makes disclosure simple: there is nothing to declare. It also means a seller offering a "treated" version of this material is offering something else.
What bloodstone is confused with
Watch for Jasper and Serpentine — these are what turn up sold under this name.
The separation is rarely a matter of opinion: refractive index 1.530–1.540 and specific gravity 2.58–2.64 settle most of it in a minute, and magnification settles the rest.
What bloodstone is used for
The trades that buy bloodstone are jewellery, carving and sculpture and decorative objects. They do not want the same thing, and they do not pay in the same unit.
We quote each application in the unit that trade actually buys in, by the carat, by the block or by the piece.
Durability and care
Hardness 6.5–7; cleavage none. That combination decides what it can safely be set into.
With no cleavage plane to worry about, the practical limit is abrasion rather than breakage, and it takes daily wear well.
Warm water, mild soap and a soft brush. Avoid ultrasonic cleaners on anything fracture-filled, stabilised, dyed or visibly included.
What bloodstone costs
Expect roughly $0.50–8/ct, depending on quality.
That is a range, not a quote. Colour, size, clarity, cut and origin move the figure a long way inside it, and the only honest price is one given against a specific stone. Send us what you need and we will price it.
Questions
Is bloodstone treated?
None normally.
Where does bloodstone come from?
Maharashtra, India, Brazil and Australia. Origin affects price, so we name the locality rather than the country on every quote.
Is bloodstone hard enough to wear every day?
Yes. At 6.5–7 on the Mohs scale with no cleavage plane, it handles daily wear well. The practical limit is gradual abrasion rather than chipping.
How much does bloodstone cost?
Indicatively $0.50–8/ct. Colour, size, clarity and origin move the price a long way within that, so treat it as a range and ask for a quote against a specific stone.
What is bloodstone confused with?
Most often Jasper and Serpentine. A refractive index of 1.530–1.540 and a specific gravity near 2.58–2.64 separate it quickly.
What is bloodstone used for besides jewellery?
carving and sculpture and decorative objects. Each of those trades buys it in a different form and a different unit.
Related stones
Looking for bloodstone?
Tell us the size, the quality and what it is for. We source it, photograph it and quote it — with the locality named.
Ask about bloodstone