Flat Sapphire Crystals

Selecting a flat sapphire crystal

All the sapphire crystals in the shop are flat. Their hardness of 9 on the Mohs scale makes them highly scratch-resistant. The 8 products in this category total 699 diameters, from 13 to 45 mm, at prices from €11.90 to €76.90 inc. VAT.

Guide by thickness

• 0.8 mm: from 13 to 41.5 mm.
• 0.9 mm: from 21.1 to 33.5 mm.
• 1.0 mm: from 13 to 45 mm, the widest range.
• 1.4 mm: from 26 to 33.5 mm.
• 1.5 mm: from 17 to 45 mm, plus an anti-reflective version in 23.5 mm.
• 2.0 mm and 2.4 mm: from 18 or 17 mm up to 45 mm.

Neighbouring thicknesses (0.8 / 0.9 / 1.0 mm or 1.4 / 1.5 mm) are not interchangeable without checking: a few tenths are enough to change the fit in the bezel. So measure the existing crystal accurately.

The guide to measuring a crystal describes taking dimensions with a calliper. To compare sapphire and mineral, read the page on crystal types.