Engagement rings are usually presented months – if not years – before the point they’re joined by awedding band.

When you choose an engagement ring, it’s likely that your main focus is aesthetic; What’s going to look most beautiful on your fiancée-to-be’s finger? What will best complement the clothes she likes to wear and gain the approval of her mum and friends? What you might not consider, however, is that the metal of her engagement ring will influence the possibilities of the wedding band that comes later.



When picking out the metal for your wedding ring, there’s just one rule: It must be of the same hardness as that of your engagement ring. This is so neither ring scratches the other.

For example, platinum scores higher on the Mohs Scale of Hardness than gold. If you place a platinum wedding band alongside a gold engagement ring, it’s almost guaranteed that the gold will become heavily scuffed and scratched over time. This is particularly true of engraved bands – like our Hera Ethical Diamond Engagement Ring – whose intricately-patterned surfaces are delicate and prone to wearing down quickly when exposed to abrasive substances.

For easy reference, gold scores a 2.5 on the Hardness Scale - whilst platinum scores a 3.5.

If you’d like your rings to look fresh-faced for as long as possible, the same metal, or at least two metals of the same hardness, are necessary.



  • Silver: 2.5 - 3 (making it perfect for pairing with a yellow gold ring!)
  • Yellow gold: 2.5 – 3
  • White gold: 2.8 – 4 (so you might be able to mix it with platinum if you’re careful!)
  • Platinum: 4 - 4.5
  • Palladium: 4.75
  • Titanium: 6
  • Tungsten: 7.5


Just because you can’t combine certain metals it doesn’t mean you can’t enjoy the stylish appearance of mixed metal colours!

Gold comes in a variety of colours, making it easy to mix and match. Taking this approach enables you to pick a bridal stack that’s unique to you AND conceived to last as long as possible. You could pair your yellow gold engagement ring with a wedding band in contemporary rose gold or classic white gold for an interesting spin on the traditional bridal stack.

In fact, this mix and match trend has skyrocketed in popularity in recent years. White gold and rose gold are close to one another on the Mohs Scale of Hardness and complement one another beautifully, silvery white reflecting dusky pink hues.

Combining metal colours is a great way to compromise if you and your fiancé have different tastes in metal but still wish to coordinate your wedding bands to a certain extent. Perhaps one loves the way yellow gold complements their darker skin, whilst the other prefers the cool, contemporary sheen of white metals? 


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Love, Arabel & Team