Learn Choosing a stone
Two kinds of brilliant.
Lab diamond or moissanite isn't a trick question — it's taste, budget and physics. Tap a stone below; every note reads the numbers from its side.
Five dimensions
The honest read.
Notes follow your pick — reading as lab diamond
Lab diamond Moissanite
Brilliance refractive index
2.42
2.65
You give up almost nothing — the gap is invisible outside a lab.
Fire dispersion
0.044
0.104
You choose restraint — white-first sparkle that reads classic.
Hardness Mohs scale
10
9.25
You hold the benchmark: 10 of 10, effectively scratch-proof.
Appearance tint in real light
ice-white
near-white
Ice-white in any light. Nothing to manage, ever.
Price for this 2ct stone
$
$
You pay $1,860 more here — for pedigree and the hardness ceiling.
Where each wins
Best for.
Lab diamond
Your pick- Engagement rings meant to become heirlooms
- Purists — it is a diamond, indistinguishable from mined
- The hardest stone there is, for decades of daily wear
Moissanite
- Maximum fire and face-up size per dollar
- Statement carats — 2ct and up without price vertigo
- Pieces you will wear hard and never baby
Undecided?
Not sure? Let us choose for you.
Thirty seconds of questions about taste, budget and wear — the sparkle quiz points you at the right stone. No account, no pressure.