How Much Is Spinel Worth?
How much is spinel worth? It ranges from inexpensive to seriously valuable, set almost entirely by color. Spinel is a hard (Mohs 8) gem long confused with ruby — several famous 'rubies' in crown jewels are actually red spinel — and it comes in red, hot pink, cobalt blue, lavender, grey and more. Common grey, mauve and pale stones sell for about $20–$100 per carat, pink and lavender for $50–$400, and the prizes — vivid 'jedi' red, hot neon pink, and cobalt blue — reach $200–$3,000+ per carat, with fine larger stones higher. A big selling point is that spinel is almost always untreated, unlike much ruby and sapphire, so a natural, untreated fine-color stone is genuinely scarce. Color saturation, clarity and size drive the price; grey or brownish stones stay cheap.
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Spinel value by type
| Type | Typical price |
|---|---|
| Common grey / mauve (per ct) | $20 – $100/ct |
| Pink / lavender (per ct) | $50 – $400/ct |
| Fine red (per ct) | $200 – $3,000+/ct |
| Cobalt blue (per ct) | $500 – $3,000+/ct |
Educational ballparks for typical specimens — not a formal appraisal.
Prices reviewed July 2026.
What drives Spinel value
- Color. Vivid red, hot pink and cobalt blue are the prizes; grey and brownish stones are cheap.
- Untreated. Spinel is almost always untreated — a genuine natural fine-color stone is scarce and a selling point.
- Clarity. Eye-clean stones are expected; visible inclusions lower value.
- Size. Large clean stones of a fine color rise steeply in price per carat.
Is your Spinel real?
Synthetic (flame-fusion) spinel is extremely common — it's a standard birthstone and class-ring imitation for many gems — and glass is also sold as spinel. Natural spinel is Mohs 8, singly refractive, and usually shows some natural inclusions; a suspiciously clean, cheap, vividly colored 'spinel' is often synthetic.
Full Spinel real-or-fake guide & at-home tests →FAQ
- Is spinel a valuable gem?
- It can be. Common grey and pale spinel is inexpensive ($20–$100/ct), but fine vivid red, hot pink and cobalt blue spinel reach $200–$3,000+ per carat — and because spinel is usually untreated, fine natural stones are genuinely scarce.
- Why was spinel confused with ruby?
- Red spinel and ruby occur together and look alike, so historically many famous 'rubies' — including some crown-jewel stones — are actually spinel. Modern gemology tells them apart easily (spinel is singly refractive).
- How can I tell natural spinel from synthetic?
- Synthetic (flame-fusion) spinel is very common and often too clean and vividly colored for its low price; natural spinel usually shows some inclusions. A gemologist confirms it, but suspiciously flawless cheap 'spinel' is usually synthetic.