How to Tell If a Pearl Has Good Lustre

How to Tell If a Pearl Has Good Lustre

When choosing pearl jewellery, size is often the first thing people notice. But one of the most important characteristics of a beautiful pearl is actually its lustre.

Lustre describes the way light reflects from the surface of a pearl. A pearl with strong lustre appears bright, crisp and almost luminous from within. When you look closely, you may even see clear reflections on its surface.

Pearls with weaker lustre tend to look softer, flatter or more matte.

Why Does Pearl Lustre Matter?

Pearls are formed from layers of nacre. The quality and structure of these layers influence how light interacts with the pearl.

High-quality nacre can create a deeper, more dimensional glow rather than simple surface shine. This is why two pearls of the same size and colour can look very different when placed next to each other.

Look at the Pearl in Natural Light

One of the easiest ways to assess lustre is to view pearls under soft natural light.

Look for:

  • Bright, clear reflections
  • A sense of depth beneath the surface
  • Even lustre across the pearl
  • A lively appearance rather than a dull or chalky surface

Good pearls should still look beautiful without strong studio lighting.

At Ora Jewelry, we believe lustre is one of the qualities that gives pearl jewellery its character. Whether you prefer delicate everyday pearls or larger statement pieces, beautiful lustre can make even a simple design feel special.