February 09, 2019

There are some significant differences you may not know about gold that will affect the overall look and durability of your jewellery. In its purest form, gold is incredibly soft; this is not ideal for jewellery for everyday wear. A solution for jewellers was to alloy gold with other metals to increase its strength and resistance. The purity of gold is measured in Karats with 24 Karat gold being the purest. Karats are units of measurement that indicate the percentage of pure gold in your jewellery. Be sure you don’t get confused with the term Carat (pronounced the same) which is a unit of measurement for the weight of gemstones. At Louise Jean, we craft our jewellery in 14K and 18K gold. It’s a good idea to learn about the essential differences between the two so that you can make the best choice for your needs. Below is a breakdown of the different gold options and their components.


Gold will slowly tarnish over time. But, 14K gold will tarnish less quickly than 18K. However, if you wear your jewellery every day, tarnish is not usually an issue since natural skin oils play a part in delaying tarnish. Gold is a natural metal meaning both 14K and 18K alloys will be affected by harsh chemicals found in pools and cleaning products. You can take a look at our jewellery cleaning and care guide here to help you care for your gold.


All gold rings will scratch, bend, and scuff over time because that's the nature of gold. Due to the higher percentage of other metals, 14K gold will be harder than 18K gold. If you are particularly active or have a job where you use your hands and know that your rings may be knocked around from time to time, 14K gold is an excellent option for you. Being harder, it, therefore, will not scuff, bend, or scratch as easily as an 18K gold ring might.  


Sometimes it can be hard to see a noticeable difference between 14K & 18K gold.  If you want coloured stones in your jewellery, you should consider whether the gold you prefer is a good colour match for your gem of choice. 18K gold will always have a stronger yellow hue, even in white and rose golds. If you like a warm yellow gold, a whiter white gold or pinker rose gold, 14K gold is a perfect choice for you.


14K rings will be less expensive than 18K gold rings due to the lower amount of pure gold in the alloy. At Louise Jean, it costs approximately $250 (subject to change) extra to use 18K gold over 14K.


The majority of our gold rings are made in 14K gold, and it is the most popular option worn in Australia.
Before making your final decision we encourage you to have a look at some side by side comparison in person either by booking an appointment to visit our studio or visiting your local jeweller.


All Ceremonial Rings are made to order and are prepared to any size requirements. Please specify your exact size in the notes section upon checkout, or you can email us with your order number and size. Custom sizing is only available for Ceremonial/made to order pieces. 

The most accurate way to determine your ring size is to go to a trusted jewellery store and have them measure your finger for you. We do offer one complimentary size adjustment; however, the customer is responsible for any associated shipping costs. Alternatively, you can obtain a free ring sizer from us- shipping rates are calculated at checkout. 

Circumference (mm) Inside Diameter (mm) Australia, United Kingdom & New Zealand The United States & Canada
44.2 14.1 F 3
44.8 14.3
45.5 14.5 G
46.1 14.7
46.8 14.9 H 4
47.4 15.1
48 15.3 I
48.7 15.5 J
49.3 15.7 5
50 15.9 K
50.6 16.1
51.2 16.3 L
51.9 16.5 6
52.5 16.7 M
53.1 16.9
53.8 17.1 N
54.4 17.3 7
55.1 17.5 O
55.7 17.7
56.3 17.9 P
57 18.1 8
57.6 18.3 Q
58.3 18.5
58.9 18.8 R
59.5 19.0 9
60.2 19.2 S
60.8 19.4
61.4 19.6 T
62.1 19.8 10
62.7 20.0 U 10¼
63.4 20.2 10½
64 20.4 V 10¾
64.6 20.6 11
65.3 20.8 W 11¼
65.9 21.0 11½
66.6 21.2 X 11¾
67.2 21.4 12
67.8 21.6 Y 12¼
68.5 21.8 Z 12½