Price per carat
/quality=85)
Ruby price per carat
What ruby actually sells for, worked out from the 324 stones in our stock. Every figure is a real stone you can buy, not a market estimate.
At a glance
01Ruby price by carat size
02In our stock, larger ruby costs more per carat — a big clean stone is rarer than two small ones.
| Carat size | Typical / ct | Most stones / ct | In stock |
|---|---|---|---|
| 1–3 ct | $2,290 | $1,540–$4,040 | 79 stones |
| 3–4 ct | $8,070 | $4,440–$12,020 | 143 stones |
| More than 4 ct | $7,730 | $4,840–$12,250 | 102 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 ruby guide →From our stock
04
Common questions
05How much does ruby cost per carat?
+
Across the 324 ruby stones in our stock, the typical price is around $6,554 per carat, with most stones between $1,540 and $12,250 per carat. Colour, clarity, cut and size move a stone within that range.
How much is a 1–3 ct ruby?
+
Ruby of 1–3 ct in our stock is typically $2,290 per carat; the middle half of the 79 stones we hold sit between $1,540 and $4,040 per carat.
How much is a 3–4 ct ruby?
+
Ruby of 3–4 ct in our stock is typically $8,070 per carat; the middle half of the 143 stones we hold sit between $4,440 and $12,020 per carat.
How much is a ruby over 4 ct?
+
Ruby of over 4 ct in our stock is typically $7,730 per carat; the middle half of the 102 stones we hold sit between $4,840 and $12,250 per carat.
From the journal
06
Shop
Ruby
Every stone shows its own price, weight, origin and treatment. Browse our ruby, or contact our team for personal help choosing one.