Why choose a natural stone over a synthetic stone?
What it really changes: durability, traceability, value, and responsibility
In the jewelry market, confusion between natural stones, synthetic stones, and reconstituted stones is common: sometimes intentional, sometimes accidental. Knowing how to distinguish these categories is essential for making an informed choice and avoiding unpleasant surprises.
Natural, synthetic, reconstituted stones: what are we talking about?
A natural stone is formed by geological processes without human intervention, extracted from underground or found on the surface. Its chemical composition, crystalline structure, and inclusions are entirely natural. Each natural stone is unique: even two stones of the same type, extracted from the same mine, will show subtle differences.
A synthetic stone (or laboratory-grown) has exactly the same chemical composition and crystalline structure as a corresponding natural stone, but it is manufactured in a laboratory. A synthetic sapphire is chemically identical to a natural sapphire: only their origin differs. These stones should not be confused with imitations.
A reconstituted stone is made from fragments of natural stones crushed and agglomerated with resin. It is often cheaper but also less durable and less homogeneous than a natural stone.
How to recognize a natural stone
An experienced eye can distinguish a natural stone from its synthetic or reconstituted equivalent by several clues. Inclusions (these tiny internal imperfections visible under a magnifying glass) are generally present in natural stones and absent in synthetic stones, which have a perfect structure. Color variations, areas of different density, growth marks: all signs of naturalness.
For certain confirmation, a gemologist can analyze the stone with a binocular loupe or a spectroscope. Gemological certificates (GIA, GRS, SSEF for valuable stones) attest to the origin and quality of a stone.
My selection process
In Jaipur, I select my stones individually from the local market. This is not a standard bulk purchase from a catalog: it is a manual selection, piece by piece, according to criteria of color, clarity, size, and origin.
This approach has a direct consequence on the finished jewelry: two pieces of the same model, adorned with the same stone, may differ slightly. The citrine in one will be a little more golden, the other slightly paler. The onyx in one bracelet will be perfectly smooth where that in another will have a slight vein. These variations are not flaws: they are the signature of authenticity.
The question of durability
Natural stones are generally harder and more durable than imitations. The hardness of minerals is measured on the Mohs scale (from 1 for talc to 10 for diamond). Sapphire and ruby, for example, are at 9 on this scale: they resist almost anything. Quartz is at 7, hard enough to resist daily wear and tear. Pearl, being softer (3 to 4), requires more precautions.
The question of value over time
Quality natural stones tend to retain or increase their value over time, especially for rare stones (Kashmir sapphire, Colombian emerald). Synthetic stones, however, do not have significant resale value.
For artisanal jewelry like mine, choosing natural stones is an ethical as well as an aesthetic consistency: if the jewelry is made to last, the stone it enshrines must be too.
