Education/Craft & care
Precious Metals
The short answer
What precious metals are used in Amarii jewellery, and which should you choose?
Amarii jewellery is made using gold and platinum, with gold available in 10ct, 14ct and 18ct options and in yellow, white and rose. Platinum is naturally white and highly pure. Each metal has a different colour, composition and way of wearing, so the choice should begin with how you want your jewellery to look and age.
What gold options does Amarii offer?
Amarii gold is available in 10ct, 14ct and 18ct, with each available in yellow gold, white gold and rose gold.
The carat tells you how much pure gold is present in the alloy. 10ct gold contains 41.7% gold, 14ct contains approximately 58.5% gold and 18ct contains 75% gold. Source: GIA.
The remaining metals are alloying metals that give the gold its colour and physical properties. This is why the same carat can look different depending on whether you choose yellow, white or rose gold.
What is yellow gold?
Yellow gold is gold in its warmest traditional colour.
The gold is alloyed with other metals to create a jewellery alloy with the required strength and colour. Yellow gold retains the characteristic warm tone associated with gold.
Amarii offers yellow gold in 10ct, 14ct and 18ct.
The higher the gold content, the greater the proportion of gold within the alloy. The next choice is whether you want that natural warmth or a cooler white metal appearance.
What is white gold?
White gold is gold alloyed with other metals to create a paler metal colour.
White gold is available in 10ct, 14ct and 18ct. The underlying alloy has a warmer tone than the bright white finish usually associated with white gold.
This is where rhodium plating becomes important.
What is rhodium plating?
Rhodium plating is a thin surface coating applied to white gold to give it a bright, white finish.
Rhodium is a member of the platinum group of metals. It is applied through an electroplating process, where the jewellery is prepared and placed into a plating solution and an electrical current deposits rhodium onto its surface. Source: GIA.
The rhodium layer creates the bright white appearance customers usually associate with white gold. It can also provide a hard surface finish that helps protect the underlying metal. Source: GIA.
Rhodium is a surface finish, not the metal underneath. With regular wear, the rhodium can gradually wear away and the warmer tone of the white gold underneath can become visible. Replating restores the bright white surface. Source: GIA.
How often does white gold need to be rhodium plated?
There is no single timeframe that applies to every ring.
Rhodium wears according to how the jewellery is worn, where it experiences friction and how often it is exposed to contact. Rings generally experience more contact than jewellery worn on other parts of the body.
When the bright white surface begins to look warmer or less reflective, the ring can be professionally cleaned and rhodium plated again.
This means white gold is not a set and forget finish. It is a metal that can be refreshed over time.
What is rose gold?
Rose gold is gold alloyed to create a warm pink tone.
Copper is an important alloying metal used to create the rose colour. The exact appearance depends on the alloy composition and the gold carat. Source: GIA.
Amarii offers rose gold in 10ct, 14ct and 18ct.
Rose gold does not require rhodium plating to create its characteristic colour. Its appearance comes from the gold alloy itself.
What is platinum?
Platinum is a naturally white precious metal used in fine jewellery.
Amarii uses platinum as a separate metal option from white gold. Platinum does not need rhodium plating to create its naturally white appearance.
Platinum jewellery is commonly made from a high purity alloy. Platinum 950 contains 95% platinum. Source: GIA.
Platinum is dense and has a different weight and feel from gold. It can develop a soft patina with wear, which can be polished when a brighter finish is preferred. Source: GIA.
What is the difference between white gold and platinum?
White gold and platinum can look similar when new, but they are different metals.
White gold is a gold alloy and is commonly rhodium plated to create its bright white finish. Platinum is naturally white and does not need rhodium to achieve its colour. Source: GIA.
White gold can require rhodium replating as the surface wears. Platinum does not require this type of colour restoration, although its surface can develop a patina through everyday wear. Source: GIA.
The choice therefore comes down to the metal properties and finish you prefer, rather than simply choosing between two versions of white metal.
Does the metal change how a diamond looks?
Yes. The colour of the metal changes the visual frame around the diamond.
White gold and platinum create a cool white setting around the stone. Yellow gold creates more contrast between the warm metal and the diamond. Rose gold introduces a warmer pink tone.
The diamond itself does not change. The surrounding metal changes how the finished ring is perceived.
Your diamond choice and your metal choice should therefore be considered together.
Which gold colour should you choose?
Choose the colour that works with the jewellery you already wear and the appearance you want from the finished ring.
Yellow gold gives the ring a warm gold appearance.
White gold gives a bright white appearance when its rhodium finish is fresh.
Rose gold gives the ring a warmer pink tone.
There is no requirement for your engagement ring and existing jewellery to be the same colour. Different metals can be worn together when the combination is intentional.
What does 10ct, 14ct and 18ct mean?
The carat indicates the proportion of pure gold in the alloy.
10ct gold contains 41.7% gold, 14ct contains approximately 58.5% gold and 18ct contains 75% gold. Source: GIA.
The fineness marks commonly used for these gold alloys are 417, 585 and 750.
What precious metals does Amarii offer?
| Metal | Colours | Gold or platinum content |
|---|---|---|
| 10ct gold | Yellow, white and rose | 41.7% gold |
| 14ct gold | Yellow, white and rose | Approximately 58.5% gold |
| 18ct gold | Yellow, white and rose | 75% gold |
| Platinum | White | Platinum 950 contains 95% platinum |
Sources: Amarii product specifications and GIA jewellery education.
Frequently asked questions
Does Amarii use 10ct gold?
Yes. Amarii offers 10ct gold in yellow, white and rose.
Does white gold need rhodium plating?
Yes. White gold is commonly rhodium plated to create its bright white surface. The rhodium can wear with use and may need to be reapplied over time. Source: GIA.
Is platinum rhodium plated?
No. Platinum is naturally white and does not require rhodium plating to create its colour. Source: GIA.
Does rose gold need rhodium plating?
No. Rose gold gets its colour from its gold alloy, rather than from a rhodium surface coating. Source: GIA.
What does 417 mean on gold?
417 indicates 417 parts gold per 1,000, equivalent to 41.7% gold and 10ct gold. Source: GIA.
Does platinum change colour?
Platinum remains naturally white, but its surface can develop a soft patina through everyday wear. It can be polished to restore a brighter finish. Source: GIA.
Can I mix gold colours?
Yes. Yellow, white and rose gold can be worn together. The choice is about the combination you want across your jewellery rather than matching every piece.
Where should you go next?
Made for you, made to be worn
Made to be yours
Talk it through with us. A private video consultation covers your diamond, setting and budget, with no obligation.
Book a video consultationKeep exploring
The metal is one part of how your ring is constructed. Read Ring Settings to understand how the centre stone is held.
The overall design determines how the metal, stone and setting work together. Explore Engagement Ring Style for the main ring designs.
Your centre stone is another important decision. Read The 4 Cs of a Diamond to understand cut, colour, clarity and carat.
Once your choices are confirmed, your ring is made to order. Read How We Make to see how the design becomes the finished piece.