A Tahitian pearl colour chart maps the natural body colours and overtones of Pinctada margaritifera, from pale dove grey to deep near-black, layered with overtones such as green (peacock), aubergine, blue, and rose. The colour is natural to the black-lipped oyster — never dyed — and the overtone is what sets one pearl above another in price.

Two Tahitian pearls can share the same grey body and look nothing alike, because the overtone — the secondary colour that floats over the surface — does the heavy lifting. Once you can separate body colour from overtone, the whole colour range clicks into place.

Body colour vs overtone: read them separately

Body colour is the dominant, base tone you see at a glance — light grey, dark grey, charcoal, or near-black. Overtone is the shimmer layered on top, visible as the pearl turns under light. A "peacock" Tahitian, for example, is usually a dark grey body with a green-to-rose overtone. Naming a pearl correctly means naming both.

There's also a third quality, orient: a faint rainbow iridescence that seems to roll just beneath the surface of the finest pearls. Not every Tahitian shows it, and you'll only catch it under good light, but when a pearl has strong orient on top of a clean overtone, it reads as alive in a way a flat-coloured pearl never does. When we grade colour on the sorting table, we're really judging all three at once — body, overtone, and orient — and the way they shift as the pearl moves.

The Tahitian colour chart

Here's the working chart we use when we sort, from lightest to deepest, with the overtones each commonly carries.

Which Tahitian colours are rarest

Rarity tracks the overtone more than the body colour. The most coveted is the true peacock — a dark body with a shifting green-and-rose glow — followed by clean, vivid aubergine and electric blue. Plain medium greys are the most common, which makes them the friendliest entry point.

Here's how the standout Tahitian overtones rank for collectors:

• Peacock: green dominant with rose flashes — the showpiece Tahitian overtone.
• Aubergine: deep purple body, increasingly hard to find clean on a Tahitian.
• Blue: cool, modern, and uncommon in strong saturation.
• Pistachio / yellow-green: unusual and collectible.

How light changes what you see

Overtone is a trick of light, so lighting changes everything. Daylight near a window shows colour most honestly; warm indoor bulbs push pearls toward green and bronze; cool LED light cools them down. Always judge a Tahitian pearl by turning it slowly under more than one light before deciding what its colour really is.

What is the most valuable Tahitian pearl colour?

A clean peacock overtone on a dark body is generally the most valuable, prized for its shifting green-and-rose play. Vivid aubergine and strong blue follow. Lustre and surface still matter alongside colour — a dull peacock loses to a bright grey.

Is a Tahitian pearl's black colour natural?

Yes — genuine Tahitian pearls are never dyed. Their dark colour comes naturally from pigments deposited by the black-lipped oyster (Pinctada margaritifera). Cheap "black pearls" that are colour-treated are usually freshwater pearls, not true Tahitians.

Can two Tahitian pearls match perfectly?

Near-perfectly, with effort. Because colour is natural, matching a strand means sorting through many pearls to find body colour and overtone that agree. Tiny variation is normal and, in singles, often a charm rather than a flaw.

To see these colours in person, explore our loose Tahitian pearls, and if green overtones draw your eye, our piece on green pearls and their natural colour goes deeper. We'll happily help you find the overtone that suits you.