She glows in lavender amethyst set in 23K gold, this exquisite 1900 piece.
Amethyst is purple quartz, February's birthstone, and the best story in the gem cabinet: for most of history it ranked among the precious stones, priced beside emerald and worn by royalty and bishops, until vast Brazilian deposits found in the nineteenth century turned rarity into abundance almost overnight. The stone did not change; the price did. Which is why antique amethyst jewelry offers something rare in this field: royal history at quartz prices.
Why was amethyst so highly valued?
Scarcity plus meaning. Before Brazil, fine purple stones came sparsely from Russian and European sources, and purple itself was the color of power, expensive to dye and reserved by rank. The name is Greek, amethystos, "not drunken": the ancients believed the stone guarded sobriety and clear thinking, and wine goblets and rings alike were made of it. Church tradition made it the bishop's stone, worn in ecclesiastical rings for centuries. Catherine the Great adored the deep Siberian material, and "Siberian" survives today as a color grade, deep purple with red flashes in the light, whatever the stone's actual origin.
How can you tell a good amethyst?
| Factor | What to look for |
|---|---|
| Color | From pale lavender to deep "Siberian" purple; saturation drives value, but pale Rose de France has its own following |
| Zoning | Natural amethyst often shows uneven color bands; perfectly even color in old jewelry deserves a closer look |
| Clarity | Eye-clean is common and expected; quartz grows big and clean |
| Cut | Antique stones are often cushion or oval, cut for color depth rather than sparkle |
| Size | Big is normal for quartz, so size alone signals little; color quality rules |
The honest buyer's note: synthetic amethyst has existed for decades and is common in later twentieth-century jewelry, and separating fine synthetic from natural is lab work. On antique pieces the mount usually answers the century question; on the stone itself, color zoning under a loupe is the friend of the natural verdict.

Bezel-set and lined up, 1963. Mid-century Scandinavia loved this stone. X link bracelet.
Why do antique amethysts look different from modern ones?
Three reasons. Cut: old stones were shaped to hold color, deep bellies and soft cushion outlines, where modern cutting chases brilliance; an antique amethyst glows where a modern one glitters. Settings: the Victorians loved amethyst in warm high-karat gold, often closed or foiled-back early on, which deepens the purple; the Rose de France pales beautifully against yellow gold. And wear: quartz is reasonably hard but not diamond, so a century adds a soft patina of micro-wear to facet edges that collectors read as honesty. All three are visible in hand, which is why amethyst rewards buying in person or from photographed-honest listings.

The romantic register, in 18K gold. amethyst heart pendant shines in 18K gold.
How should you care for amethyst?
Two enemies: sunlight and sudden heat. Amethyst's color can fade with long direct sun exposure, so it is a jewel for wearing, not for windowsill display, and jewellers' torches can shift its color entirely, which is one reason resizing amethyst rings needs a careful hand, as covered in the resizing guide. Otherwise it is easy company: soap, water and a soft brush clean it safely, and at 7 on the Mohs scale it handles daily wear with ordinary sense, though it will scratch before a sapphire would. Store it out of the diamond compartment, and the purple outlives us all.
Frequently asked questions
Is amethyst valuable?
As material, modest since the Brazilian finds; as jewelry, the value is in color quality, the mounting and the age. Fine antique amethyst pieces in high-karat gold carry real prices, driven by the whole object.
What is the most valuable amethyst color?
Deep saturated purple with red flashes, traditionally called Siberian. The pale lilac Rose de France sits at the other end and is loved for exactly its softness.
Why is it called amethyst?
From Greek amethystos, "not drunken": the stone was believed to protect against intoxication, which made it popular for goblets, bishops and anyone needing a clear head.
Does amethyst fade?
It can, slowly, with long direct sunlight, and its color can change with strong heat. Worn normally and stored in a box, the color is stable for lifetimes.
Is my amethyst natural or synthetic?
Synthetics are common in later twentieth-century jewelry and hard to separate without a lab. Natural color zoning under a loupe is a good sign; the age and construction of the piece is often the stronger evidence.
Can amethyst be worn every day?
Yes, with quartz-level sense: it is harder than most things it meets except other jewelry. Rings take the scratches first; pendants and earrings live nearly forever.
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