22-karat gold is an alloy composed of 91.67 per cent pure gold — precisely 22 parts gold in every 24 — with the remaining 8.33 per cent comprising one or more base metals, most commonly copper, silver, or zinc. It is stamped 916 in the millesimal fineness system, reflecting its 916.7 parts-per-thousand gold content, and may also be marked 22K or 22ct depending on the jurisdiction. Among the high-karat standards in commercial use, 22K occupies a position of particular cultural and economic importance across South Asia, the Middle East, and parts of Southeast Asia, where it serves simultaneously as wearable jewellery, portable wealth, and ceremonial adornment.

Historical context: crown gold

In Britain, the 22-karat standard carries a documented history stretching back to 1526, when Henry VIII's mint adopted it as the official fineness for gold coinage. The resulting pieces became known as crown gold, a term that persisted through successive coinages including the sovereign. The standard was chosen as a practical compromise: pure gold (24K) is too soft for coins subject to daily handling, while lower-karat alloys sacrifice the visual richness and intrinsic value that gold coinage demanded. The British sovereign, struck to the 22K standard from 1817 onward in its modern form, remains perhaps the most widely recognised 916-gold object in Western numismatic tradition. Fine English jewellery of the Georgian and early Victorian periods was also frequently worked in 22-karat gold, a practice that declined as 18-karat became the dominant hallmarked standard for jewellery in Britain during the nineteenth century.

Physical and metallurgical properties

The colour of 22K gold is distinctly warmer and more saturated than 18K or 14K yellow gold, owing to the higher proportion of gold itself. When alloyed primarily with copper — as is common in Indian and Middle Eastern production — the resulting metal takes on a deep, slightly reddish-yellow tone that is immediately recognisable and highly prized in those markets. When silver predominates among the alloying metals, the colour is a purer, cooler yellow.

In terms of hardness, 22K gold registers approximately 125–150 on the Vickers scale depending on alloy composition and working history, placing it significantly softer than 18K gold (typically 150–230 HV) and considerably softer than platinum or palladium alloys. This relative softness has direct consequences for jewellery design: 22K is well suited to plain bangles, broad necklace links, and sheet-formed pieces where structural integrity does not depend on thin prongs or fine filigree. It is less appropriate for claw settings holding faceted stones, where repeated stress and abrasion would cause prongs to wear and deform more rapidly than higher-hardness alloys would.

Regional significance and use

In India, 22K gold is the dominant standard for bridal jewellery — the elaborate sets of necklaces, earrings, bangles, and hair ornaments assembled for a wedding trousseau. The Bureau of Indian Standards hallmarking system, administered through BIS-certified assaying centres, recognises 916 as one of its primary fineness grades. Indian consumers have historically regarded high gold content as inseparable from the jewellery's value as a store of wealth, making 22K the culturally normative choice even when 18K would be mechanically superior for a given design.

Across the Gulf states — the UAE, Saudi Arabia, Kuwait, and Qatar — the gold souks trade predominantly in 21K and 22K pieces, with price boards displaying the daily gold rate per gram at each fineness. The characteristic deep yellow of high-karat Gulf jewellery, often worked into bold geometric or floral forms, reflects both aesthetic preference and the understanding that jewellery functions as liquid savings as much as personal ornament.

In parts of Southeast Asia, including Thailand and Vietnam, 22K and 23K gold are traditional standards for ceremonial and gift jewellery, though 18K has gained ground in urban markets oriented toward European design aesthetics.

Hallmarking and identification

Legitimate 22K jewellery should carry a fineness mark of 916 or the karat stamp 22K / 22ct. In the United Kingdom, pieces submitted for assay are struck with the 22-carat mark (a crown above the number 22 in older hallmarks; a simplified numeric mark in post-1999 convention). In India, BIS hallmarking includes the BIS logo, the fineness figure (916), the assaying centre's mark, and the year of hallmarking. The UAE mandates hallmarking through the Emirates Authority for Standardisation and Metrology (ESMA). Unmarked pieces claiming 22K fineness should be verified by XRF analysis or fire assay before purchase.

Investment and market considerations

Because 22K gold contains a very high proportion of the metal itself, its intrinsic value tracks the gold spot price closely — more so than 18K or 14K pieces. This makes 22K jewellery attractive in markets where the distinction between jewellery and bullion is deliberately blurred. Fabrication premiums (the making charge in Indian retail parlance) are added above the metal value, but the resale calculation remains relatively transparent. For buyers primarily motivated by gemstone quality or design complexity, 18K or platinum alloys typically offer superior performance; for buyers in whom cultural tradition, gold purity, and wealth preservation converge, 22K remains the rational and deeply rooted choice.