Trothe Free ring sizer

Contemporary metal

Titanium

The light one

Surface hardnessMohs 6
Density4.5 g/cm³
ResizableReplaced free
HallmarkedNot applicable

Grade 5 aerospace titanium, and by a distance the lightest thing we make. At 4.5 g per cubic centimetre it is under a third the weight of 18ct gold, which is the entire point for anyone who has never worn a ring before and does not want to notice it.

Right for

  • First time ring wearers
  • Anyone who dislikes the weight of gold
  • Wide bands that would be heavy in anything else

Wrong for

  • Anyone who wants a ring to feel substantial
  • Resizing

Honestly

Softer than zirconium at Mohs 6, so it picks up fine surface marks. Most people come to like that. If you will not, choose zirconium.

In this material

5 rings

Weighing it up

Compare it against something else

Titanium questions

Can a titanium ring be resized?
No. Titanium cannot be stretched or cut and rejoined the way precious metals can, and anyone claiming otherwise is describing a replacement. We replace free for life instead, which is the same outcome stated honestly.
Is titanium hard wearing?
Its surface sits at Mohs 6. For comparison, airborne dust contains quartz at Mohs 7, which is why anything below that picks up fine scratches from ordinary wear. This is close to that line and will mark slowly.
Is titanium hallmarked?
No, and it does not need to be. The Hallmarking Act applies to gold, silver, platinum and palladium. Titanium is not a precious metal, so no hallmark exists for it and none is required.
How heavy is a titanium ring?
4.5 grams per cubic centimetre. Titanium is the lightest thing we make at 4.5 and platinum the heaviest at 21.4, so this sits at the light end of the range.
Is titanium safe for sensitive skin?
Yes. It contains no nickel, which is the metal that causes almost all jewellery reactions.