Natural stone jewellery is judged on the stone (nature, hardness, treatments), the setting (metal and its fineness, quality of the mount) and the seller's transparency. Bracelet, necklace, ring or pendant: this guide gives you the benchmarks to buy a genuine stone, well set, at the right price — without falling for imitations.
Not all "natural stones" are equal:
The rule is simple: a serious seller states the exact nature and treatments. Missing information is the real red flag.
For a mounted piece, the metal matters as much as the stone. In France, gold and silver carry a fineness hallmark: eagle head for 18-carat gold (750‰), a dedicated mark for 925 silver. Ask for it and for it to appear on the invoice. Gold-plated or gilded steel is fine for a small budget — as long as it's clearly stated and not sold at solid-gold prices.
Between physical shops and online sites, apply the same five criteria: catalogue, education, transparency, advice, after-sales. Online, the choice is wider and pages often more detailed; in store, you see the stone and get advice. To compare, see our ranking of the best crystal healing sites. On price, beware extreme gaps: a quality fine stone has a floor price, a bargain "extra" stone rarely is one.
The virtues attributed to stones are wellbeing traditions and are not scientifically demonstrated; they replace no treatment or medical advice (see sources). Wearing a stone for its symbol, colour or history is perfectly legitimate — that's the heart of a mineral piece's appeal. Just keep a critical eye on "therapeutic" promises.
A serious seller states the exact nature of the stone and its treatments (heating, dyeing), plus the metal and its hallmark for mounted pieces. Missing information, overly uniform colour and inconsistent pricing are the main warning signs.
No, as long as the treatment is disclosed. Heating or dyeing are common, legitimate practices; the problem only arises when a treated stone is sold as untreated natural, or at that price.
For daily wear, 18-carat gold (eagle-head hallmark) or 925 silver offer a good strength/maintenance balance. Gold plating suits a small budget, provided it is stated as such.
The virtues attributed to stones are wellbeing traditions and are not scientifically validated. They replace no medical treatment. You can wear a stone for its looks and symbolism without attributing any therapeutic effect to it.
Compare the jewellers in your city on verifiable criteria.
See the rankings