Gold Karat Guide

Photo credits and licenses

In short

The photographs on this site come from Wikimedia Commons under Creative Commons licenses or the public domain. Each one is credited under the picture and listed here with its author, license and source file. The photos have been resized; nothing else was changed. The diagrams and charts are our own and may be reused with a link to the page they appear on.

Icons

Interface icons on the home page are from Phosphor Icons (regular weight), MIT License, copyright Phosphor Icons; a few jewelry icons that the set lacks were drawn in the same grid and stroke. Chart and diagram graphics are our own.

Photographs

ImageSource file on Wikimedia CommonsAuthorLicense
Four 18k gold chains side by side: round snake, rope, open curb and trace anchor chainFour 18K gold chains.jpgW.carterCC BY 4.0
Four thin 18k gold chains laid straight: venetian box, figaro and two curb chainsFour thin 18K gold chains.jpgW.carterCC BY 4.0
Gold Franco chain coiled on a white background, showing the dense four-sided weaveGold Franco chain 2.jpgW.carterCC BY-SA 4.0
Spiga, or wheat, chain in 18k gold, braided strands forming a rope-like rounded chainSpiga chain in 18K gold.jpgW.carterCC BY 4.0
Venetian box chain in 18k gold, square links reflecting light in flat facetsVenetian 18K gold chain 1.jpgW.carterCC BY 4.0
Gold rolo chain with round wire links, laid in loopsGold rolo chain 2.jpgW.carterCC BY-SA 4.0
Thin 18k gold curb chain with clasp, laid loosely on a white surfaceCurb chain in 18K gold.jpgW.carterCC BY 4.0
Macro of a gold ring band stamped 583 next to a Soviet star assay markSoviet Union fineness for gold.jpgStar61CC BY-SA 4.0
Two gold rings held in fingers, each showing a small French eagle-head hallmarkPoinçon or.JPGChatsamPublic domain
Jewelry testing acids on a bench: a jar, a small bottle and a glass dish with tweezersJewellery acids.jpgMauro CatebCC BY-SA 3.0
Jewelry store window in Miami with heavy Cuban link chains on display bustsJewelry Store Window in Miami.jpgPhillip PessarCC BY 2.0
Open black jewelry box with grey lining: ring rolls, small compartments, two pouches inside the lid and pull-out drawersBlack jewelry box in embossed leather imitation 1.jpgW.carterCC BY-SA 4.0
Small white consumer ultrasonic cleaner with a tinted lid and a digital timerAdiding SJ-W3-7357.jpgRaimond SpekkingCC BY-SA 4.0
Empty solitaire ring setting with its round brilliant stone lying beside it on red clothSolitary ring and diamond.JPGMauro CatebCC BY-SA 4.0
Stainless steel bar pendant on a ball chain displayed on a black bustJAWS Jewelry.jpgPleurad XhafaCC BY-SA 4.0
Plain polished 18k gold band on a white surface, hallmarks visible on the insidePlain 18K domed gold ring.jpgW.carterCC BY-SA 4.0
Scrap gold offcuts and wire arranged in a circle, surrounded by scrap sterling silver pieces, on whiteSilver and gold scrap metal.jpgW.carterCC BY 4.0

CC BY requires attribution; CC BY-SA additionally requires that adaptations are shared under the same license. If you reuse a photo from this site, credit the original author, not us.

How this page was made. Calculators use the live spot price from data/gold_price.json (updated daily, source and timestamp shown on the page). Purity fractions follow the standard karat scale. Questions in each guide come from real Google search suggestions collected in September 2026, not from a keyword tool. Last reviewed: 2026-09-04.