Your collection,
valued like a portfolio
Catalog your jewelry, bullion, coins, and stones, then watch every piece priced against live precious-metal and diamond markets. Private by design, on your iPhone.
$11,240
$9,860
Every piece, fully documented
A collection only becomes a portfolio when the record is complete. Trove captures what each piece is, what it is made of, and everything that happens to it.
- Any kind of piece. Jewelry, watches, bullion bars, coins, and loose stones, each with the fields that fit.
- Structured stones. Carat, color, clarity, and certificate, so diamonds price straight from the market.
- A living record. Photos, provenance, storage location, and an immutable event timeline per piece.
- Lifecycle built in. Mark pieces sold, lent, lost, or moved, with realized gain tracked for you.
$3,180
$6,420
$4,950
$2,640
A defensible number for every piece
No more guessing what a piece is worth today. Trove connects your collection to the same markets dealers watch, and tells you exactly where each value comes from.
- Live spot prices. Gold, silver, platinum, and palladium refreshed every five minutes, in your unit and currency.
- The diamond market, decoded. A live color-by-clarity price grid powered by daily market data.
- Sourced, never guessed. Every value is labeled spot melt, diamond matrix, or your appraisal, so you know what it means.
+0.8%
-0.4%
+1.2%
Your own market desk
Most collectors do not have an analyst. Trove gives you one that reads the market every morning and answers the question that matters before you buy.
- A daily brief, written for your collection. Your pieces, the moves that matter, and real market context, every day.
- Deal checker. Enter an asking price and see whether it lands below, within, or above the market band.
- Built on facts, not hype. The brief is generated from your numbers, with no speculation and every source attributed.
At a glance
Your collection is up $4,210 today, led by gold, which gained 0.8% as the dollar softened. Platinum continues its run, now up 6.1% on the month. Your tennis necklace sits near its highest matrix value since March.
Gold +0.8% Platinum +1.2% ReutersDeal checker
1.0 ct G / VS1, asking $6,900
Track it like an investor
Your collection is also an asset. Trove brings portfolio-grade analytics to it, so you can see real return and how it stacks up against the alternatives.
- Real return. Annualized XIRR across every purchase, not a naive average.
- You versus the market. Compare your collection to gold, the S&P 500, or Bitcoin on the same dates.
- What drove it. Attribution by metal, by kind, and by piece, down to the dollar.
What you collect is nobody's business but yours
Trove is built so your collection stays yours. That is not a setting you turn on. It is the architecture.
No ads, ever
No advertising, no ad identifiers, no behavioral tracking SDKs anywhere in the app.
Your data is yours
We never sell, rent, or share your collection. It is stored with row-level security so only you can read it.
Export anytime
One tap writes your whole collection to a CSV file. Nothing is ever locked in.
Delete instantly
Account deletion removes your data immediately and irreversibly, right from your iPhone.
Generous to start, powerful when you grow
Catalog up to ten pieces and use live prices for free. Upgrade when your collection deserves the full picture.
- Up to 10 pieces
- Live prices and basic estimates
- Deal checker and daily market brief
- Full reference library
- Light and dark themes
- Unlimited pieces
- Full performance analytics: XIRR, benchmarks, attribution
- Personal daily AI brief
- All chart ranges and portfolio scopes
- Diamond market terminal and Atlas depth
- Unlimited alerts, CSV export, accent themes
Subscriptions are billed through the App Store. Cancel anytime.
Bring your collection into focus
Free to download, with up to ten pieces included. Your first valuation takes about two minutes.