Is This Jadeite Bracelet Treated or Dyed?

A jadeite bracelet may be untreated (Type A), bleached and polymer-filled (Type B), dyed (Type C), or both filled and dyed — and the seller may not disclose which. The only way to know for certain is a grading report from a gemological laboratory.

Last updated: September 13, 2026

By Mara Ellison · Founding Editor, Dusk & Relic Journal

What Do the A, B, and C Grades Mean for a Jadeite Bracelet?

The jade trade uses a letter system to describe what has been done to a jadeite bracelet after mining. Type A means the jadeite bracelet has not been bleached or filled and carries no dye — surface waxing is the only finishing step allowed. Type B means the jadeite bracelet was soaked in acid to dissolve stained inclusions, then injected with polymer resin to patch the voids. Type C means the jadeite bracelet was dyed to introduce or deepen color. B+C combines filling and dye.

These letter grades are trade shorthand, not regulated labels. A Type A claim is only as trustworthy as the lab report behind it. Without that report, the grade on the listing is the seller's word and nothing more.

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Why Is So Much Jadeite Bracelet Material Treated?

Supply of naturally vivid jadeite bracelet material has never matched demand. Jade has carried associations of virtue and fortune in Chinese culture for roughly 6,000 years, driving a market much larger than the limited geological deposits can supply.

The United States relies on imports for 99% of its apparent gemstone consumption, so nearly all jadeite bracelets sold stateside pass through multi-step international supply chains where treatment can happen at any stage. The USGS notes separately that glass, plastics, and other materials are frequently substituted for natural gemstones in the broader market. A jadeite bracelet sits where high cultural demand meets long, opaque supply chains — conditions that make widespread treatment predictable.

Can You Spot a Treated or Dyed Jadeite Bracelet Without a Lab?

A few visual clues flag the most obvious treatments, but none replace a lab report. On a dyed jadeite bracelet, color tends to concentrate in surface-reaching fractures and grain boundaries — hold the jadeite bracelet under strong light and look for pigment pooling along cracks rather than even color through each jadeite bead.

Polymer fill in a Type B jadeite bracelet can give the surface a plasticky feel compared to the glassy smoothness of untreated jadeite, and filled areas may yellow after months of sun exposure. A magnifying loupe sometimes reveals gas bubbles trapped in the polymer — untreated jadeite bracelet material does not contain round bubbles.

These home checks catch sloppy treatments. A well-executed fill or dye passes all of them. Whether aquamarine has been quietly heat-treated is a parallel problem: visual screening narrows the field, but only lab spectroscopy gives a definitive answer.

When Does a Jadeite Bracelet Need a Lab Report?

I'd skip the lab report only when a jadeite bracelet is cheap enough to walk away from — above that price, the report pays for itself in certainty. A gemological lab tests a jadeite bracelet with infrared spectroscopy to detect polymer and spectrophotometry to identify dye, and the report names the species (jadeite versus nephrite) along with any treatments detected.

For everyday-priced jewelry where a lab report costs more than the jadeite bracelet itself, buying from a seller that lists exact materials is the practical alternative. A listing that specifies every stone — the way Sunstruck (8 mm, $115) names its citrine and clear quartz beads, or Clear Water (9 mm, $90) states chunky-nugget clear quartz with nothing else — signals a seller willing to be pinned down.

Telling real moonstone from glass opalite works the same way: specificity in the listing, like Little Planet (10 mm, $95) naming both its aquamarine and moonstone beads, beats a vague "natural gemstone" label.

Does Treatment Change How a Jadeite Bracelet Holds Up?

Polymer filling in a Type B jadeite bracelet degrades. The resin yellows with UV exposure and can crack under heat. Ultrasonic cleaning damages the fill further. Dye in a Type C jadeite bracelet may fade with prolonged sunlight or contact with household solvents. An untreated Type A jadeite bracelet holds its color indefinitely under normal wear.

Knowing the treatment grade tells you what care a jadeite bracelet requires — and the principle extends to every stone type. Heat-treated citrine can fade when re-exposed to heat, which is why exact material listings matter: Golden Thread (10.5 mm, $115) names gold rutilated quartz and First Frost (8 mm, $105) names faceted clear quartz, so the buyer can look up care instructions for that specific stone.

The underlying question — whether the beads are what the seller says they are — is the same whether the stone is jadeite, aquamarine, or quartz.

FAQ

What is the difference between jadeite and nephrite in a bracelet?

Jadeite is a pyroxene mineral; nephrite is an amphibole. A jadeite bracelet tends toward translucency with a glassy luster, while a nephrite bracelet is more opaque with a waxy surface. The A/B/C treatment grading applies to jadeite bracelet material specifically.

Can a jeweler test a jadeite bracelet for treatment in the store?

A jeweler can assess surface feel and heft, but detecting polymer fill or dye requires infrared spectroscopy and spectrophotometry. Most retail stores do not have those instruments, so an in-store opinion is a first screen, not a final answer.

Does the price of a jadeite bracelet tell you whether it was treated?

Not reliably. Cheap jadeite bracelets are more likely treated, but expensive jadeite bracelets can be misrepresented too. Price reflects seller positioning as much as material quality.

Will a dyed jadeite bracelet bleed color onto skin?

A well-executed dye job does not bleed under normal wear. Cheap dye may transfer when the jadeite bracelet contacts water or acetone. The absence of color bleeding does not prove the jadeite bracelet is undyed.

Can UV light detect treatment in a jadeite bracelet?

Polymer resin in a Type B jadeite bracelet sometimes fluoresces under long-wave UV, but the response depends on the resin used and some treated jadeite bracelets show no fluorescence at all. UV is a clue, not a verdict.

Is a certificate of authenticity the same as a gemological lab report?

No. A certificate of authenticity is the seller's own statement. A gemological lab report comes from independent third-party testing. Only the lab report confirms whether a jadeite bracelet is untreated.

Does Type B filling make a jadeite bracelet more fragile?

The acid soak that removes inclusions loosens the grain structure of the jadeite bracelet, and the polymer is a cosmetic filler, not a structural repair. A filled jadeite bracelet chips and cracks more easily on impact than untreated Type A.