Not all gold is the same - gold alloys in jewelry

Not all gold is the same - gold alloys in jewelry

How do the extreme price differences in gold jewelry come about, what are the quality differences, and how is all of this related to gold alloys?

One of the reasons why Maren Jewellery pieces differ in price from those of other brands is the high percentage of pure gold. When buying a piece of jewelry, in order to evaluate whether the price is justified, it is worthwhile - in addition to a number of other factors - to take a look at the composition of the precious metals processed. After all, not all gold is the same. Pure gold, which is also known as fine gold, is unsuitable for making jewelry. Why? We would like to explain this to you in the following and show you what differences there are with regard to the gold content. For the production of jewelry, so-called alloys - i.e. mixtures of different precious metals - are used.

Read here everything you need to know about gold alloys in general and which alloy of gold we use at Maren Jewellery.

What is a gold alloy?

Fine gold is very soft and therefore susceptible to damage. It can therefore not be used for the production of durable jewelry. The material properties of gold are therefore optimized by adding other precious metals such as silver, copper or palladium. This process of fusing gold with other metals is called alloying. For the production of an alloy, the individual metals are melted to form a homogeneous mass and hardened again. The addition of the metals gives the gold more stability, so that it can be better processed into jewelry. Depending on the mixing ratio, this creates different gold alloys, each of which differs from the other in gold content. When selecting gold jewelry, you can read off the purity of the gold in the form of carats or percentages.

What are the different gold alloys?

Gold alloys vary from country to country. In Germany, the standard gold alloys are 333 gold, 585 gold and 750 gold. The proportion of gold is given in parts per thousand of the weight. The smaller the number, the less gold is effectively contained in the alloy. With 750 gold, the jewelry thus consists of 75% fine gold.

Perhaps you also know the information in carats? This is an older, but in the jewelry industry still very common marking of the gold content, in which the weight percentage (also fineness) of gold is given in 1/24 parts. 8 carats then correspond to 333 gold, 14 carats correspond to 585 gold, and 18 carats correspond to 750 gold.

Hallmarking of gold alloys

The gold content of any piece of jewelry can usually be found out easily by looking at the hallmark. This is a small embossing in a hidden place on the jewelry. Only with older jewelry this marking may be missing or no longer recognizable.

Gold alloys from Maren Jewellery

For the gold alloy, we at Maren Jewellery have chosen to use only recycled 18 carat yellow gold and 18 carat white gold to make high quality, durable jewelry for you. This is due to the following reasons:

Unique color:

Both gold alloys we use are 75% pure recycled gold. The high gold content in 18 karat gold gives our jewelry its warm, yellow-gold or bright, white-gold color. The difference in colors comes from the different mixing ratios. Our recycled yellow gold is composed of 75% pure gold, 15% silver and 10% copper. The recycled white gold is 75% pure gold, 4% silver, 7% copper and 14% palladium (a platinum metal).

Durability & Quality:

Because sustainability is one of our basic principles, the longevity and quality of our jewelry is especially close to our hearts. Unlike gold-plated jewelry, the color of our gold jewelry remains intact over the long term. Due to its purity, 18 carat gold is a very resistant material. Therefore, our jewelry accompanies you for a lifetime and even later generations can still enjoy the preciousness of the jewelry. Neither do they tarnish, nor is there much material abrasion during Jewelry care.

Comfortable feeling on the skin:

Due to the 18 carat gold used, our jewelry feels pleasantly soft on the skin. The high percentage of fine gold also makes it the ideal companion for people with sensitive skin, as it can not cause contact allergies.

Frequently asked questions

Both the 18 carat and 750 gold designations indicate the total proportion of pure gold within a gold alloy, i.e. the fusion of different metals. The carat specification for gold is a unit of measurement for the proportion by weight that the pure gold occupies in the total mixture of the alloy - also called fineness. The fineness is expressed in 1/24 parts. The largest possible weight proportion of pure gold within a gold alloy would therefore be 24/24 parts by weight, i.e. 24 carats. The fineness of gold can also be expressed in weight percent. 18 carats then correspond to the highest possible 24 carat fineness exactly 75% gold content of the total mass of the alloy. The designation 750 gold, as a reference to the 75% gold content, therefore describes the same purity of the alloy and can be used synonymously.

The 18 carat specification for gold is a unit of measurement for the proportion by weight that gold holds in the total mixture of an alloy. The weight percentage (also purity) of gold is given in 1/24 parts. The highest purity of gold, i.e. the highest percentage by weight of pure gold within a gold alloy, is achieved at 24/24 parts by weight, i.e. 24 carats. However, since possible impurities can never be completely eliminated, even 24-karat gold only achieves a purity of 99.99%. However, 24 karat gold is not suitable for processing jewelry, as it is too soft and bends easily. Therefore, 18 karat or also called 750 gold with 75% gold content is the highest quality gold alloy suitable for jewelry processing.

Written by: Franka

Franka is a freelancer in the fields of marketing and communication and lives with her small family in Munich. She tries to consciously shape her everyday life in order to integrate more sustainability into her life bit by bit.