Amethyst, citrine, blue topaz, peridot — all technically "semi-precious." Diamond, ruby, sapphire, emerald — "precious." The label sounds like a quality verdict, but it isn't one. Here's where this classification actually came from, and why it has almost nothing to do with how good (or valuable) a specific stone actually is.
"Precious" and "semi-precious" is a 19th-century marketing classification, not a modern gemological standard — the GIA and other gem labs don't use these terms to grade stones. A fine, high-grade semi-precious stone can be worth more than a low-grade precious one. What actually determines value is the specific stone's rarity, quality, and craftsmanship — not which of the two buckets it's sorted into.
Where "Precious" vs. "Semi-Precious" Actually Came From
The precious/semi-precious split dates back to 19th-century Europe, when diamond, ruby, sapphire, and emerald were designated "precious" gemstones — largely because they were, at the time, the rarest and most sought-after stones available to Western jewelers, and because import and trade patterns made them scarce and expensive. Every other naturally occurring gemstone — amethyst, citrine, topaz, garnet, peridot, tourmaline, and dozens more — was grouped into the catch-all "semi-precious" category.
It was a rarity-and-trade classification of its era, not a scientific one. It said nothing about a stone's hardness, beauty, or how it was formed — only how available it happened to be in 19th-century European markets.
What Are the "Big 3" (and the "7 Precious Stones")?
In the colored gemstone trade, the "Big 3" (sometimes "Big 4" with diamond included) usually refers to ruby, sapphire, and emerald — the three colored stones that carried the original "precious" designation alongside diamond.
There's no single, universally agreed "7 precious stones" list — different sources and traditions name different combinations. The most common versions build on the original four (diamond, ruby, sapphire, emerald) and add stones like pearl, opal, alexandrite, or jade depending on the source. If you see a "7 precious stones" list online, treat it as one writer's version rather than an official standard — there isn't one.
Why "Semi-Precious" Doesn't Mean Lower Quality or Value
Modern gemology has largely moved away from the precious/semi-precious distinction altogether — the Gemological Institute of America (GIA) and other major labs evaluate every gemstone on its own merits: color, clarity, cut, and rarity for that specific stone type, not which historical bucket it was sorted into.
In practice, this plays out clearly in pricing. A fine, richly saturated tanzanite, paraíba tourmaline, or top-grade amethyst can sell for more per carat than a low-grade, heavily included sapphire or ruby. Category never overrides quality — a great "semi-precious" stone regularly outperforms a mediocre "precious" one.
What actually drives a gemstone's value is the same regardless of category: how rare that specific stone is, its grade (see our guide on gemstone grading), its size, and the craftsmanship of the piece it's set in.
The Gemstones We Work With — All "Semi-Precious," All AAA-Grade
Every gemstone in the Praise Jewels collection — amethyst, blue topaz, black onyx, smoky quartz, and peridot — technically falls under the old "semi-precious" label. None of that changes what they actually are: natural stones, individually selected, graded AAA, and set by hand in 925 sterling silver.
Blue Topaz Art Deco Hexagon Pendant — 925 Sterling Silver
Shop the Blue Topaz Art Deco Hexagon Pendant →Peridot is a good example of the category's limits: it's rarely found in large, clean sizes, which makes fine peridot genuinely difficult to source — a "semi-precious" stone that can be harder to find in top grade than some "precious" ones.
Peridot Bloom Ring — Natural Peridot in 925 Sterling Silver
Shop the Peridot Bloom Ring →Frequently Asked Questions
What are the 7 precious stones, in order?
There's no single official "7 precious stones" list. The most consistently cited precious stones are diamond, ruby, sapphire, and emerald; longer lists sometimes add pearl, opal, alexandrite, or jade depending on the source and tradition.
What are the "Big 3" gemstones?
In the colored gemstone trade, the Big 3 typically refers to ruby, sapphire, and emerald — the three colored stones historically classified as precious alongside diamond.
Does "semi-precious" mean a gemstone is worth less?
Not necessarily. A high-grade, rare semi-precious stone can be worth more than a low-grade precious one. Value depends on the specific stone's rarity, grade, size, and craftsmanship — not its historical category.
Do gemologists still use the precious/semi-precious distinction?
Major gem labs like the GIA generally don't use it as a grading standard today. They evaluate each gemstone type on its own criteria instead of sorting it into one of two historical buckets.
Are the gemstones Praise Jewels uses precious or semi-precious?
By the traditional classification, amethyst, blue topaz, black onyx, smoky quartz, and peridot are all "semi-precious." Every one is a natural, AAA-grade stone, individually selected and hand-set — the category label doesn't change that.
Shop Natural Gemstone Jewelry
Every piece in our collection is set with a natural, AAA-grade gemstone in 925 sterling silver.
"Semi-precious" was never a verdict on quality — it was a 19th-century inventory label. What makes a gemstone worth choosing is the stone itself: its color, its rarity, and the hands that set it.