JEWELPEARL

Pearl Value Estimator

Start from a base price, scale it by size, and apply your own type and grade multipliers to estimate what a pearl or strand is worth.

What you’d pay for one pearl at the reference size, type factor 1, grade factor 1.
How steeply value climbs with size — 2 (the square) is a common rule of thumb.
e.g. freshwater/Akoya ≈ 1, Tahitian ≈ 2–3, South Sea ≈ 4+. Set your own.
e.g. A ≈ 1, AA ≈ 1.5, AAA ≈ 2.5. Set your own.

Estimated value

Size factor
×1.31
Per pearl
97.96
Total (1)
97.96

This multiplies your own base price by a size factor and the type and grade multipliers you supply. No market prices are built in — it is a planning aid, not an appraisal. For a real valuation, consult a qualified appraiser.

Size, type, and grade — in that order

Pearl pricing has no fixed rate card, but it does have a shape. Size dominates: because a larger pearl takes an oyster far longer to grow and far fewer reach the top sizes, value rises steeply — often close to the square of the diameter. Type sets the tier, from freshwater and Akoya up through Tahitian and South Sea, and grade fine-tunes it within a tier. This tool lets you encode all three as a base price and a set of multipliers you control.

Because you supply the figures, it stays useful as the market moves — update your base price and multipliers and the estimate follows. It compares options; it doesn’t appraise them.

Frequently Asked Questions

What determines a pearl's value?

Broadly four things: size, type, grade (luster, surface, shape, nacre, colour), and how well a strand matches. Size is the steepest lever because larger pearls are exponentially rarer, so value climbs with roughly the square of the diameter. This tool lets you set a base price and apply your own factors for each.

Where do the numbers come from?

From you. There are no market prices built in. You provide a base price per pearl at a reference size and neutral grade, and your own multipliers for type and grade — that keeps the estimate honest and current rather than pinned to a figure that goes stale.

What multipliers are typical for type and grade?

As a rough starting point, freshwater and Akoya sit near 1, Tahitian around 2–3, and South Sea 4 or more; for grade, A ≈ 1, AA ≈ 1.5, AAA ≈ 2.5. These vary a lot by source and season — treat them as placeholders and set values that match the market you're buying in.

Is this an appraisal?

No. It's a planning aid for comparing options and sanity-checking a quote, not a valuation. For insurance, resale, or a purchase that matters, get a written appraisal from a qualified, independent appraiser.

Educational estimate only — not an appraisal or financial advice. All figures are ones you supply; real pearl prices depend on the market and the specific pearls. For insurance or resale, get a written valuation from a qualified independent appraiser.