Price per carat
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Blue Sapphire price per carat
What blue sapphire actually sells for, worked out from the 28 stones in our stock. Every figure is a real stone you can buy, not a market estimate.
At a glance
01Blue Sapphire price by carat size
02In our stock, larger blue sapphire costs more per carat — a big clean stone is rarer than two small ones.
| Carat size | Typical / ct | Most stones / ct | In stock |
|---|---|---|---|
| 2.5–3 ct | $1,690 | $1,530–$2,460 | 8 stones |
| 3–4 ct | $1,880 | $1,580–$1,980 | 11 stones |
| More than 4 ct | $2,670 | $2,210–$3,110 | 5 stones |
“Most stones” is the middle half of our stock in that size, so one exceptional stone cannot skew it.
What moves the price
03Two stones of the same weight can differ several times in price. Colour comes first, its saturation and evenness, then clarity, the quality of the cut, origin and treatment. Every listing states each of these, so you can compare like with like.
Read the blue sapphire guide →From our stock
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Common questions
05How much does blue sapphire cost per carat?
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Across the 28 blue sapphire stones in our stock, the typical price is around $1,981 per carat, with most stones between $1,530 and $3,110 per carat. Colour, clarity, cut and size move a stone within that range.
How much is a 2.5–3 ct blue sapphire?
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Blue Sapphire of 2.5–3 ct in our stock is typically $1,690 per carat; the middle half of the 8 stones we hold sit between $1,530 and $2,460 per carat.
How much is a 3–4 ct blue sapphire?
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Blue Sapphire of 3–4 ct in our stock is typically $1,880 per carat; the middle half of the 11 stones we hold sit between $1,580 and $1,980 per carat.
How much is a blue sapphire over 4 ct?
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Blue Sapphire of over 4 ct in our stock is typically $2,670 per carat; the middle half of the 5 stones we hold sit between $2,210 and $3,110 per carat.
From the journal
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Shop
Blue Sapphire
Every stone shows its own price, weight, origin and treatment. Browse our blue sapphire, or contact our team for personal help choosing one.