Amethyst is one of the most affordable natural gemstones in fine jewelry today — which makes it easy to assume it was always common. It wasn't. Here's the real history behind amethyst's rarity, and what actually separates a fine amethyst from an ordinary one now.
Amethyst was historically as prized as ruby or sapphire — worn by royalty and clergy — until massive deposits were discovered in Brazil in the 19th century, which made it far more available and affordable. Deep, evenly saturated purple (sometimes called "Siberian" grade) is the most valuable color today; pale lavender ("Rose de France") is the most common and affordable.
How Amethyst Color Grading Actually Works
Within the general AAA/AA/A quality scale used across colored gemstones (see our full gemstone grading guide), amethyst has its own color-based terminology that traders use alongside it:
- Deep Russian / "Siberian" purple — the most prized shade: a rich, saturated violet-purple with flashes of red and blue visible when the stone moves in light. Despite the name, this color grade doesn't require the stone to actually be from Siberia — it describes the color itself.
- Medium purple — a strong, versatile purple that balances noticeable color with everyday wearability.
- Rose de France — a pale, soft lavender shade, the most affordable and widely available grade, prized for its own soft, understated look rather than intensity.
Neither end of this range is objectively "better" for wear — they're different looks. But for value specifically, deeper, more saturated, more evenly colored stones consistently command higher prices.
Is Amethyst Rarer Than Diamonds? The History Behind This Question
Historically, yes — or at least comparably rare and prized. For centuries, amethyst was treated as one of the most valuable gemstones in the world, worn by royalty and religious leaders and ranked alongside ruby, sapphire, and emerald in value.
That changed in the 19th century, when massive amethyst deposits were discovered in Brazil (and later elsewhere in South America). Suddenly abundant, amethyst's price dropped sharply — which is exactly how it ended up classified as "semi-precious" rather than "precious" (see our guide on precious vs. semi-precious gemstones for how that classification actually works). So: rarer than diamonds today? No. Historically treated with similar status? Genuinely yes.
What Actually Drives Amethyst's Value Today
With rarity no longer the deciding factor, a handful of other things determine what one amethyst is worth relative to another:
- Color depth and evenness — the single biggest factor; deep, uniform, saturated purple commands the highest prices.
- Clarity — amethyst is typically eye-clean, but fewer visible inclusions still push value up.
- Cut quality — precise faceting that maximizes how the stone catches light.
- Size — large, well-colored amethyst is less common than large, pale amethyst, so size still matters within a color tier.
- Craftsmanship and setting — with rarity less of a factor, the quality of how a stone is cut, selected, and set contributes more to a finished piece's value than it once did.
Violet Crown Ring — Natural Amethyst & CZ in 925 Sterling Silver
Shop the Violet Crown Ring →Every amethyst in the Praise Jewels collection is graded AAA and individually selected for color depth and consistency before it's set — see Our Sourcing & Quality Standards for the full detail.
Frequently Asked Questions
What color amethyst is most expensive?
Deep, evenly saturated violet-purple — sometimes called "Siberian" grade — with visible red and blue flashes commands the highest prices. Pale lavender ("Rose de France") is the most affordable and common grade.
Is dark or light amethyst more valuable?
Generally, darker, more saturated amethyst is more valuable than lighter shades, though light amethyst has its own appeal and is widely chosen for its softer look rather than for rarity.
Is amethyst rarer than diamonds?
Not today — large deposits discovered in Brazil in the 19th century made amethyst widely available. Historically, though, amethyst was treated with comparable rarity and status to diamonds, rubies, and sapphires.
What is the rarest type of amethyst?
Deep, evenly colored "Siberian"-grade amethyst with strong red and blue flashes is the most prized and hardest to source in large sizes. Green amethyst ("prasiolite") is also uncommon, though it's generally treated as a distinct variety rather than a grade of purple amethyst.
Shop AAA-Grade Natural Amethyst
Amethyst's affordability isn't a mark against it — it's the result of a genuine geological discovery that made a once-rare stone available to far more people. What still separates a fine amethyst from an ordinary one is exactly what it always was: color.