What Does 585 Mean on Jewelry?

The stamp 585 on jewelry means the piece is made of 14-karat gold, containing 58.5% pure gold by weight. The number is a millesimal fineness mark—a system that expresses purity in parts per thousand, used on jewelry worldwide.

Golden Thread · $115. View this piece’s details →

Last updated: September 6, 2026

By Mara Ellison · Founding Editor, Dusk & Relic Journal

Where Does the Number 585 Come From?

Millesimal fineness expresses metal purity in parts per thousand. A 585 stamp means 585 parts gold; the rest is alloy metals—typically copper, silver, or zinc—added for hardness and color. In the karat system, 585 equals 14K.

US-made jewelry usually carries "14K" or "14KT" rather than the three-digit fineness number. Imported pieces from Italy and Turkey almost always use the millesimal stamp. Both notations mean the same gold content: 58.5%. If a piece carries both "14K" and "585," that redundancy is normal—some manufacturers stamp both for international buyers.

How Does 585 Compare to Other Gold Stamps?

Fineness	Karat	Gold Content	Typical Use
375	9K	37.5%	Budget jewelry (UK, Australia)
585	14K	58.5%	Most US fine and fashion jewelry
750	18K	75.0%	European fine jewelry, premium hardware
999	24K	99.9%	Bullion; too soft for daily wear

Higher fineness means more gold but softer metal. A 585 piece resists scratches better than 750 because the larger alloy proportion in 14K gold hardens the surface. For daily-wear bracelets, 585 remains the standard US grade.

The fineness stamp is the gold percentage with the decimal shifted—585 reads as 58.5%, 750 reads as 75.0%. Color shifts with karat too: 585 gold leans slightly paler than 750 because alloy metals pull the hue toward their own tone.

Will You Find a 585 Stamp on a Crystal Bracelet?

Bead bracelets rarely carry a visible 585 stamp because the metal components—clasps and spacer beads—are too small for hallmarks. The gold specification comes from the maker's listing, not a stamp on the piece.

Several Dusk & Relic bracelets use 18K gold-plated hardware, which means the gold layer is 750-fineness. Golden Thread (10.5 mm, $115) pairs that hardware with gold rutilated quartz beads. Dusk & Citrine (10–11.5 mm, $95) combines amethyst and citrine with the same grade.

Quartz-family stones like amethyst and citrine register Mohs 7 hardness, harder than steel and any gold alloy. In a bead bracelet, the stones outlast the metal hardware; the gold plating on clasps and spacers wears first.

Does Gold Type Carry Meaning in Crystal Lore?

In crystal lore, metal choice is traditionally considered part of a bracelet's intention. Gold has long been associated with solar energy and abundance across many traditions. Wearers who follow these associations pair gold-toned hardware with stones linked to warmth and prosperity—citrine and golden rutilated quartz are common choices.

Silver, by contrast, is traditionally connected to lunar energy and receptivity. Many wearers choose between gold and silver hardware based on which intention the bracelet carries, rather than on purity grades. A 585 stamp or 750 stamp tells you about metal content; in lore, the metal type and color are what practitioners consider.

Some practitioners view gold as an amplifier in lore terms—a citrine bead set in gold hardware, in their reading, reinforces the warmth intention.

What Is the Difference Between Gold-Plated and Solid Gold?

A fineness stamp like 585 or 750 means solid gold—the whole piece is gold alloy at that purity. Gold-plated jewelry uses a thin gold layer over base metal and carries different labeling.

I'd choose 18K plating over 14K for bracelet hardware because the warmer color sits better against quartz and citrine beads, though 14K plating holds up slightly longer against scratches. Tide Chime (6–10 mm, $75) pairs 18K gold-plated hardware with aquamarine and freshwater pearl.

Gold-filled sits between plated and solid: a thicker gold layer mechanically bonded to base metal. More durable than plating but heavier, and less common in bead bracelets.

FAQ

Is 585 gold real gold?

585 gold is real gold. The stamp confirms the piece contains 58.5% pure gold mixed with alloy metals for strength and durability. The 585 designation applies only to solid gold—not plated, not filled. Any piece stamped 585 has been tested or warranted to that purity.

Is 585 the same as 14K?

585 and 14K describe the same gold purity using different scales. Millesimal fineness (585) rates gold in parts per thousand. The karat designation (14K) uses a separate fractional system. Both equal 58.5% pure gold content.

Can 585 gold tarnish?

Pure gold does not tarnish, but the alloy metals in 585 gold can react with moisture and chemicals over time. Regular wear usually prevents buildup. Avoid prolonged contact with chlorine and harsh cleaners to keep the surface bright.

Why doesn't my bracelet have a 585 stamp?

Bead bracelets use metal in small components—clasps and spacer beads—that are often too small for a legible hallmark. The metal specification is listed by the maker on the product page or packaging rather than stamped onto the hardware.

What does 750 mean on jewelry?

750 means 18-karat gold with 75.0% pure gold content. 750-fineness gold is softer and more yellow than 585 gold because of the higher gold proportion. On bracelet hardware, 18K gold is commonly used as a plating layer rather than solid metal.

Does gold purity matter in crystal lore?

In crystal lore traditions, practitioners focus on the type of metal—gold versus silver—rather than its purity grade. Gold is traditionally associated with solar energy and abundance; silver with lunar energy and intuition. Whether the gold is 585 or 750 is not typically considered meaningful in these practices.

How can I tell if a 585 stamp is authentic?

Look for a clear, evenly struck mark—usually on the inside of a band or clasp. Authentic stamps are uniform and legible under magnification. If the stamp is blurry or the piece feels unusually light for its size, a jeweler can verify purity with an acid test or electronic tester.