What Karat Is My Gold? 24K vs 22K vs 18K vs 14K Explained

The Karat Scale in One Sentence

Karat is a fraction out of 24: pure gold is 24 parts gold out of 24, so karat ÷ 24 = the proportion of gold. An 18K piece is 18/24 = 75% gold. A 14K piece is 14/24 = 58.3% gold. Everything else in the alloy is other metal: usually copper, silver, zinc, nickel or palladium.

Do not confuse it with carat with a "c", which is a unit of weight for gemstones. Confusingly, British English uses "carat" for both, which is why UK jewelry is marked "18ct".

The Complete Karat Table

Karat	Gold content	Hallmark	Color & feel	Typical use
24K	99.9%	999	Deep, saturated yellow; very soft, dents easily	Bullion bars and coins, investment jewelry
22K	91.6%	916	Rich yellow; still soft	Indian, Gulf and South Asian jewelry
21K	87.5%	875	Warm yellow	Middle Eastern and North African jewelry
18K	75.0%	750	Clear yellow; good balance of color and strength	European fine jewelry, luxury watches
14K	58.3%	585	Paler yellow; hard and durable	US mainstream jewelry, everyday rings
10K	41.7%	417	Noticeably pale; very hard	US budget jewelry, class rings
9K	37.5%	375	Pale, slightly brassy; hard-wearing	UK, Irish and Australian jewelry

How to Find Your Karat

1. Look for the stamp

Check the inside of a ring shank, the clasp or an end tag on a chain, the bail or back of a pendant, and the post or butterfly of an earring. Use your phone's macro mode and zoom in on the photo: it is far easier than a loupe. You are looking for either a karat mark (18K, 22K, 9ct) or a millesimal number (750, 916, 375). Our hallmark guide decodes everything you might find.

2. Judge by color, carefully

Higher karat means more gold, which means a deeper, more saturated yellow. 24K has an almost orange warmth; 9K looks pale and slightly brassy. This is a genuine signal, but a weak one on its own: alloy recipes vary between manufacturers, white and rose golds break the pattern entirely, and lighting shifts perceived color dramatically. Treat color as a hint, never a conclusion.

3. Judge by hardness

Pure gold is soft enough to mark with a fingernail under pressure. A 22K bangle will deform if you sit on it; a 14K ring will not. If a piece stamped 999 feels springy and rigid, the stamp and the metal are telling you different stories.

4. Test it properly

An acid test kit gives you a karat band in about a minute for around $20, and a jeweler's XRF scan gives you actual percentages, usually free. These are the only methods that measure rather than infer. See all eight ways to check your gold.

Reality check: Gold Identifier estimates from what a camera can see: color, luster, form, texture and legible stamps. That makes it a fast first-pass screen and a solid reference, but no photo-based tool can measure metal content. Before you buy, sell, insure or lend against a piece, confirm it with a hallmark inspection, an acid test, a specific-gravity test or a professional XRF assay.

What Karat Means for Value

Melt value scales directly with karat. Take 10 grams of gold at a spot price of $75 per gram:

Karat	Purity	Pure gold in 10g	Melt value at $75/g
24K	99.9%	9.99 g	$749
22K	91.6%	9.16 g	$687
18K	75.0%	7.50 g	$563
14K	58.3%	5.83 g	$437
9K	37.5%	3.75 g	$281

The same weight of 9K is worth roughly a third of 24K. That is why karat is the first thing any buyer asks. Note that these are melt values: a dealer will pay below this, and a retail piece sells for well above it because of craftsmanship, brand and stones. Our valuation guide works through the full calculation.

Which Karat Should You Buy?

24K and 22K: best if you are buying gold partly as a store of value. Highest metal content, closest to spot, but soft enough that rings and bracelets will scratch and bend with daily wear.
18K: the sweet spot for fine jewelry. Strong enough to hold stones securely, still unmistakably gold in color, and the standard for luxury brands.
14K: the durability choice. Hard, scratch-resistant, considerably cheaper, and the default for engagement and wedding rings in the US.
10K and 9K: hard-wearing and budget-friendly, but with under half the gold content. Reasonable for fashion pieces; poor as a store of value.

Karat Conventions Around the World

The "normal" karat depends entirely on where a piece was bought, which is why an inherited item often carries a number you were not expecting.

India and South Asia: 22K (916) dominates, because jewelry doubles as savings and buyers want the metal value to dominate the price. 18K is growing for diamond-set and Western-style designs.
Gulf states: 21K (875) is the regional standard, with 22K and 24K common in bullion-style chains sold by weight. 21K is rare almost everywhere else, so a 875 stamp is a strong clue to origin.
United States: 14K (585) is the default for engagement and wedding rings, with 10K (417) common in budget pieces. The US Federal Trade Commission's jewelry guides (16 CFR Part 23) set 10 karat as the minimum fineness that may be described as gold in US commerce.
United Kingdom and Europe: 18K (750) for fine jewelry, 9K (375) for everyday and budget items. 9K is legal as gold in the UK under the Hallmarking Act 1973, but falls below the US FTC's 10 karat floor, so the same piece cannot be sold as gold in the United States.
Italy: a major manufacturing centre, mostly producing 18K for export, marked 750 alongside a numeric maker's code.

None of these is more genuine than another. They are commercial conventions balancing purity, durability and local buying habits.

Marks That Confuse People

Not every number stamped on gold is a karat figure, and several marks are actively misleading.

KP (karat plumb). "14KP" means exactly 14 karat rather than merely close to it. Historically some manufacturers undershot the stated karat within tolerance, so plumb marking was a guarantee of precision. It is a positive sign, not a warning.
417 versus 14K. 417 is 10K, not 14K. People frequently misread it because the digits look higher. Check the table above rather than assuming a bigger number means more gold.
HGE, GEP, GP, RGP. All plating marks. "18K HGE" means heavy gold electroplate over base metal, not 18 karat gold. The karat figure describes the plating layer, which may be under a micron thick.
800, 900, 925, 950. These are silver and platinum standards. On a gold-coloured piece, 925 almost always means gold-plated sterling silver, sold as vermeil.
No stamp at all. Plenty of genuine gold is unmarked: antique pieces predating mandatory hallmarking, handmade items, and anything resized or repaired in a way that removed the original mark. Absence of a stamp is not evidence of a fake, it just means you have to test.

Karat and Durability in Practice

Pure gold is soft enough to mark with a fingernail, so the alloy metals are what make jewelry wearable. That trade-off is the real reason different markets settled on different karats.

A 22K ring worn daily will lose detail on its edges and go slightly out of round within a few years. The same design in 14K will still look sharp after a decade. This is why 22K is common in bangles and chains, which take less abuse, while ring-heavy markets favour 14K and 18K.

Stone settings follow the same logic. Prongs holding a valuable stone need spring and hardness, so most jewelers will not set an important diamond in anything above 18K, and many prefer 14K or platinum for the setting even on a higher-karat piece.

Does Higher Karat Mean Better Resale?

Per gram, yes: more gold means more metal value, and 22K returns more than 14K for the same weight. But two things complicate it.

First, you rarely recover making charges. A retail piece includes a design and craftsmanship fee, typically 8 to 25% of the metal value, and scrap buyers pay for metal only. The higher the making charge you paid, the larger the gap between what you spent and what you get back.

Second, a low-karat piece is not necessarily a bad buy. A 14K ring that survives thirty years of daily wear has arguably delivered more value than a 22K one that had to be replaced twice, even though its per-gram scrap return is lower.

If you are buying gold mainly as a store of value, buy high karat, buy by weight, and keep the making charge as low as you can. If you are buying jewelry to wear, buy the karat that suits the piece and stop treating it as an investment.

When One Piece Has More Than One Karat

A single item is often not a single alloy, and the stamp may only describe part of it. This catches people out at the point of sale, when a buyer weighs the piece and quotes less than expected.

Clasps, jump rings, earring posts and pin backs are frequently a different, lower karat than the body they are attached to, because those parts need extra hardness or were replaced during a repair. Solder is almost always lower karat than the metal it joins, so a heavily repaired chain can assay noticeably below its stamp.

Two practical consequences. When you test, test the body of the piece rather than the clasp, or you will read the wrong number. And when you sell, expect a careful buyer to test more than one point and price accordingly, particularly on chains and bracelets with many joints.

The same applies in reverse to mixed-metal designs. A two-tone ring may be 18K yellow with a white gold or platinum accent, and a scrap buyer will separate and price them independently rather than paying the higher rate across the whole weight.

White and Rose Gold

Color says nothing about karat. White gold is a gold alloy with palladium, nickel or silver, usually rhodium-plated for a bright finish: 18K white gold is still 75% gold. Rose gold gets its warmth from a higher copper content, and 18K rose gold is also still 75% gold. Read the stamp, not the color.

Find Your Karat in Seconds

Photograph the piece and Gold Identifier reads the stamp, explains the mark and shows an estimated karat range. Free on iPhone and Android.

Frequently Asked Questions

Is 24K gold better than 18K?

It depends on the purpose. 24K has the highest gold content and therefore the highest melt value per gram, which makes it better for investment. But it is very soft and scratches and bends easily, so 18K or 14K is better for jewelry you wear every day.

How do I know if my gold is 18K or 14K without testing?

Look for the stamp: 750 or 18K versus 585 or 14K. Without a stamp, 18K looks slightly deeper and warmer in color and feels marginally softer, but alloy recipes and lighting make this unreliable. An acid test or a jeweler's XRF scan is the only way to be sure.

What is the difference between karat and carat?

Karat measures gold purity out of 24. Carat measures gemstone weight, where one carat is 0.2 grams. British English spells both as 'carat', which is why UK gold is stamped '18ct'.

Is 9K gold worth anything?

Yes, but much less than higher karats. At 37.5% gold, a 9K piece has roughly a third of the melt value of the same weight in 24K. It is genuine gold and legally sold as such in the UK, Ireland and Australia.

Does white gold have a lower karat than yellow gold?

No. Karat and color are independent. 18K white gold and 18K yellow gold both contain 75% gold: they differ only in which metals make up the remaining 25%.