An honest range for your opal.
Opalescent appraises an opal from a short, guided video. It grades what it sees — body tone, brightness, pattern, likely origin — and shows a value range backed by what comparable opals are currently listed for. Every factor carries its own confidence score, and when the app isn't sure, it says so and tells you why.
Early testers receive a free calibration card. One email at launch, nothing else.
You're in.
You're on the early list — among the first people who will point Opalescent at a stone. We'll write to once, at launch, and not before.
Early testers receive the calibration card free.
Point your camera. Read the evidence.
Capture
A short guided video of the stone — top view, tilt, rotation — or up to 8 photos. A calibration card in frame sharpens the reading; the app works without one and lowers its confidence honestly.
Grading
The app reads the factors that drive opal value: body tone, brightness, dominant colour, pattern, and likely origin. Each factor gets its own confidence score — never just one overall number.
The range
You get a value range — never a single number — built from what comparable opals are currently listed for, with the listings there to inspect. Asking prices can sit above final sale prices, and the app says so.
The honest part.
A range, never a number
Two opals of the same weight can differ fifty-fold in value. Any tool that hands you one tidy number is guessing. Opalescent shows the range the evidence supports — and what drives it.
Evidence you can audit
Every appraisal is backed by active marketplace listings — real asking prices for comparable stones, labelled as exactly that. The comparables are one tap away, not hidden behind the verdict.
Confidence on every factor
Origin is hard to call from video, and the app admits it. Each factor carries a confidence score with a plain-language reason. Low confidence is surfaced, never softened.
No games
Your first appraisal is free, no account needed. Plans are priced plainly with real limits stated up front. No weekly-subscription tricks, no inflated promises.
A reference the camera can trust.
Screens and lighting both lie about colour. The calibration card is a printed reference — tone steps, colour patches, and measurement marks — that sits in frame beside your stone, so the app grades against known values instead of guessing from pixels.
Captures with a card earn higher confidence. Captures without one still work — the app simply says its confidence is lower, and names the reason. Join the list and we'll send early testers a card, free.
Collectors and sellers read the same evidence.
Ninety seconds at a dealer's table
A stone is offered at $1,800. Is that in range? Scan it, see the range and the comparable listings, and make the call before another buyer steps in — with the full factor breakdown one tap down when you want to audit the reasoning.
A wholesale order priced in an afternoon
Thirty cabochons to list. Scan each stone, get a defensible range and the evidence behind it, and drop a clean result card straight into your listing or your next DM negotiation.