The Quality of Kouchta

The Quality of Kouchta

What we sell, plainly stated.

No fine print.

Kouchta sells one thing only: lab-grown gemstones, set in genuine precious metal. Not glass. Not illusion. Here is exactly what you're buying — and why the comparison clearly favors us.

9.25/10Hardness (Mohs scale)
2.65Refractive index
18KGold plating, 2 µm+

A gemstone, not glass

Our stones are lab-grown moissanite: a crystalline gemstone nearly as hard as diamond, with a refractive index higher than diamond's (2.42) and a fire 2.4 times more intense. Cut like a diamond, it lives like one: it never dulls, never scratches in daily wear, never clouds over.

Solid silver, genuine gold

Every piece is set on solid 925 silver — the very metal jewelers use — finished with 18K gold plating of at least 2 microns on our vermeil collections. Not brass: precious metal, inside and out.

The honest comparison

The big crystal brands — Swarovski chief among them — craft glass. Glass cut with real virtuosity, but glass: modest hardness, surface shine, set on plated brass. It's a handsome showcase piece. It isn't a gemstone. Others sell cubic zirconia on brass — at precious-stone prices.

Kouchta

  • Lab-grown moissanite — a gemstone, hardness 9.25/10
  • Fire 2.4× more intense than diamond — forever
  • Solid 925 silver, 18K gold plating (2 µm and up)
  • The same, ten years later
  • A fair price — no showroom, no middlemen

Luxury crystal

  • Glass, even signed — hardness ≈ 5.5/10
  • Surface shine, surface treatment
  • Rhodium-plated brass
  • Scratches, fades — within the first year
  • High price… for glass

Cheap plating

  • Cubic zirconia or glass
  • Dulls within months
  • Brass and alloys
  • Blackens, oxidizes
  • High price… for brass

Why our prices stay fair

No physical stores, no middlemen, no showroom margins. You pay for the stone and the metal — never the rent. The result: jewelry-grade quality, at a price a little gentler than a classic boutique.

Our promise

  • Our stones are always disclosed as lab-grown — on the site, on product pages, on every document.
  • Every piece arrives in its Kouchta gift box, ready to give.
  • What you see in the photo is what you receive: genuine metal and a genuine gemstone.

Ready to see the difference?

Discover the collection

KOUCHTA