Gem Size & Tooth Fit Selector
Pick a tooth, enter its visible width, and choose the look you want. The selector suggests a gem diameter in proportion to the tooth and shows how much of the width it covers.
Recommended gem size
How the recommendation works
The selector treats the gem diameter as a share of the tooth's visible width: roughly a tenth for a subtle look, around a seventh for a balanced one, and closer to a fifth for a statement piece. It then snaps that ideal figure to the nearest size gems are actually sold in — 1.8, 2.0, 2.2, 2.5, or 3.0 mm — so the recommendation is something you can buy.
Because it works from proportion, the same “balanced” setting gives a smaller gem on a narrow tooth and a larger one on a broad tooth, which is exactly what keeps a gem looking right on your particular smile.
Frequently Asked Questions
What size tooth gem should I get?
Most tooth gems sold for the front teeth are between about 1.8 mm and 3 mm across. The right size for you depends on the width of the tooth: a gem that looks bold on a narrow lateral incisor can look lost on a broad central incisor. This selector takes your tooth width and the look you want and suggests a diameter that stays in proportion.
How do I measure my tooth width?
The figure to use is the visible width of the crown at its widest point, measured across the tooth. A small ruler in a mirror gives a rough number; for accuracy a dentist can measure it precisely. Picking a tooth in the selector prefills a typical average width, but your own tooth may differ.
Is a bigger gem more likely to fall off?
Size alone is not the main factor — the quality of the bond and your aftercare matter far more. That said, a larger gem presents a bigger surface for chewing forces to catch, and it needs enough flat enamel to sit on, so an oversized gem on a small or curved tooth can be harder to keep secure. Proportion is about both looks and practicality.
Educational tool only. This is a proportion guide, not dental advice; a professional should confirm the size and fit on the actual tooth before applying a gem.