When shopping for jewellery you will notice that gold jewellery comes in carat varieties. Gold on its own is too soft to wear as jewellery, therefore, it is alloyed with other metals to create wearable pieces. In Australia, gold most commonly comes in two purities - 9ct and 18ct. But what is the difference between the two? There are many factors to consider when deciding on 9ct or 18ct gold.
Read on to learn more about the differences between 9ct and 18ct gold.
The Difference Between 9ct and 18ct Gold:
Colour
The main difference is the precious metal content (how much pure gold each carat has). 9ct gold contains 37.5% pure gold while 18 ct gold contains 75% pure gold. The remainder is made up of other metals like copper and nickel. The colour of the gold is determined by the content of these alloyed metals. For example, white gold is alloyed with silver palladium or platinum while rose gold contains more copper. Therefore, 18ct gold is more yellow in colour as it contains the most amount of gold. Some people prefer the paler colour of 9ct against their skin tone, while others prefer the rich golden tones of 18ct gold.
Durability
If you are choosing a piece that will be worn frequently such as an engagement or wedding band, you may want to consider 18ct gold. In comparison to 9ct gold, 18ct gold is the best option for durability and longevity. While 9ct gold scores higher on the hardness scale, that does not automatically mean that it will fair well over time. The higher gold content in 18ct gold makes it more malleable and ductile, which means that it has the ability to be worked with and even hammered! 9ct gold on the other hand may become brittle and crack over many years.
Read More: Why Gold Is Used To Make Jewellery
Cost
18ct gold jewellery is more expensive due to its high gold content. There is over twice as much gold present in 18ct gold than 9ct gold, which means that it is worth more. Even though there is a significant price difference, you are not only paying for the gold but the reassurance of longevity and durability. An 18ct gold piece can be an heirloom that is passed through the generations - a feat that is out of 9ct’s reach.
9ct Gold v. 18ct Gold
Colour:
18ct gold is more yellow in tone, while 9ct gold is paler. Some people prefer the stark golden yellow of 18 carats, while others prefer the softer tone of 9 carats against their skin tone. Colour ultimately comes down to personal preference.
Durability:
While 9ct gold is technically harder than 18ct gold, it is not more durable. For durability and longevity, 18ct is the way to go. It is more ductile and malleable, meaning that it can withstand the wear and tear of everyday life for years to come. If you are buying a piece that is going to be worn every day, such as an engagement ring or wedding band, then 18ct is the best option. If you are searching for dress jewellery that will be worn less, then 9ct is suitable.
Expense:
What is your budget? 9 carat gold is an affordable option and is very popular in many jewellery pieces like gold necklaces and gold bracelets. However, if your budget allows, 18ct gold will last a lifetime and boasts an unmissable golden tone.
Both 9ct and 18ct gold have different qualities and functions that make them unique. When shopping for gold jewellery, it is important that you consider your needs and preferences. Colour, budget and durability will be the main points to consider. If you have the budget, 18ct gold is a better option for longevity and durability, while 9ct has a cooler tone and is more affordable. Gold jewellery is stunning and a classic choice for anyone, at Shiels we have a huge collection of gold jewellery in a range of carat varieties - you are sure to find a piece that you will adore.
