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18 carat Gold

18 carat gold, an alloy comprising 75% pure gold and 25% metals such as copper, silver, zinc, nickel, and palladium, is consequently more durable than pure gold.

Additionally, it’s widely used in high-end jewelry owing to its high value and purity. Therefore, its rich color and resistance to tarnishing make it an ideal choice for luxury items.

18k gold, with its rich color skin to pure gold, is favored for special occasions and investment pieces like gold coins and bars. Its durability and timeless appeal significantly make it a preferred choice for high-value items. Furthermore, its higher purity compared to 9k or 14k gold ensures it maintains its value over time.

18 Carat Gold

Cost and Value

18 carat gold is an alloy containing more purity than 10k Gold. Therefore, it is approximately 30% more expensive than 14ct gold and about 80% more expensive than 10ct gold. Consequently, it is less costly than higher purity options like 22ct and 24ct gold.

Price Per Gram

The market price for 18k gold in the United Kingdom fluctuates base on the overall global gold market and exchange rate movements. Significantly, the gold market can be volatile so this per-gram price may change regularly in response to supply and demand, economic conditions, geopolitical events, and currency exchange rates. 


18 carat gold is made by mixing 18 parts pure gold with 6 parts of other metals like zinc, nickel, silver, and copper. Sometimes, its jewelry is plated with rhodium, a metal known for its corrosion resistance, to protect it from daily wear and tear.

750 Gold

It is the fineness of gold purity out of a thousand parts. Specifically, the number 750 stamped on gold coins and gold bars means it is 18 carat gold. As a result, its jewelry cost depends on purity, weight, and the current gold market rate.

18 Carat Gold Colours

Significantly, it is available in various colours and these colours are due to the mixing of different metals to make 18ct Gold alloys. Usually, there are three major colours of 18 carat Gold White Gold, Yellow Gold, and Pink Gold.

White Gold

It is a precious metal made from 75% pure gold and 25% other metals, such as silver, nickel, and palladium. This mix gives it a modern white color, making it popular for fine jewelry and investment purposes.

Yellow Gold

Most 18k yellow gold alloys are composed of 75% pure gold, 12.5% copper, and 12.5% fine silver. Therefore, this balanced combination creates a stunning and harmonious hue. Additionally, 18ct yellow gold has a pure, rich color that is perfect for classic and vintage jewelry. Consequently, Its high purity gives it a warm tone and it complements darker skin tones well. 

Rose Gold

18k rose gold is made of 75% gold, 22.25% copper, and 2.75% silver, giving it a nice color and strength. It causes less allergy than white gold. Moreover, Rose Gold is used for investment purposes like in the making of Coins and Bars.  However, Gold, including rose gold, is a stable investment, with prices that stay steady even during economic depressions, unlike metals such as platinum. 

Type of GoldCompositionCharacteristics
White Gold75% pure gold, 25% other metals (silver, nickel, palladium)Modern white color, popular for fine jewelry and investment
Yellow Gold75% pure gold, 12.5% copper, 12.5% silverPure, rich color, perfect for classic and vintage jewelry, complements darker skin tones
Rose Gold75% pure gold, 22.25% copper, 2.75% silverNice color and strength, causes less allergy, used in investment purposes like coins and bars
18 Carat Gold Colours

18k Gold Vs 14k Gold

Aspect14K Gold18K Gold
Gold Content58.3% pure gold75% pure gold
DurabilityMore durable, resistant to scratchesSofter, more prone to scratches
Everyday WearSuitable for daily wearBest for special occasions
TarnishingMore resistant to tarnishingLess resistant to tarnishing
PriceLess expensiveMore expensive
ColorSlightly less vivid colorRicher, more vibrant color
HypoallergenicIt may contain nickel, which is less hypoallergenicPurer, more hypoallergenic
Common UsesNormal jewelry, wedding bandsFine jewelry, engagement rings
18k Gold Vs 14k Gold


18 carat Gold applications include fine jewelry, special occasion pieces, and investment purposes.

Fine Jewelry

It is a popular choice for luxurious and prestigious fine jewelry, including:

  • Engagement rings and wedding bands
  • Necklaces, pendants, and earrings
  • Bracelets and bangles
  • Luxury watches

The higher gold content and rich, vibrant color of 18k gold make it desirable for those seeking quality and elegance in their jewelry.

Special Occasion Pieces

Significantly, due to its superior quality and value, 18k gold is often preferred for special occasion jewelry, such as:

  • Anniversary gifts
  • Heirloom pieces
  • Commemorative or collectible coins and bars
  • Luxury gifts and awards

Investments purposes

18 carat Gold is also used for Investments purposes such as in the making of Gold coins and Gold Bars are mostly used for investments.

  • Buying gold bullion and coins
  • Investing in jewelry and other gold-based assets
  • Using exchange-traded funds (ETFs) and mutual funds that focus on gold

The stability and lasting value of 18k gold make it a dependable investment, especially during uncertain economic periods.

Sum up

  • 18K Gold contains 75% pure Gold 
  • 25% other metals present in 18k Gold
  • 18k Gold has white, yellow, and red Colour
  • 750 Gold is referred same as 18k Gold 
  • 18k Gold used in jewelry and investment purposes