This is one of the most common questions we’re asked, particularly by people buying pearls for the first time. The short answer is that there isn’t a single “best” pearl variety or specification. The longer, more useful answer is that the best pearl quality depends on how several factors work together and, most importantly, how the pearl enhances the person wearing it.
Pearl quality is judged using a combination of characteristics, including lustre, surface quality, size and shape. Different jewellers prioritise these markers in different ways, which is why pearls that appear similar at first glance can vary significantly in value and appeal. Let’s take a closer look...
Lustre: the most important marker of pearl quality
Of all the factors used to assess pearl quality, lustre is arguably the most important. Lustre refers to the way light reflects from the surface and inner layers of a pearl. High-lustre pearls appear bright, glowing and almost illuminated from within.
This is what gives pearls their famously flattering effect. High-quality lustre helps the wearer’s complexion look fresher and more radiant, which is where the idea of pearls giving an “instant face lift” comes from. A pearl with excellent lustre will always look alive on the skin, regardless of its size or shape.
Surface quality: perfection versus authenticity
Some jewellers place heavy emphasis on perfectly smooth, unblemished surfaces. While a pure skin surface is rare and highly valued, it’s not the only indicator of quality. Small natural blemishes are completely normal and often a sign of genuine pearl formation.
As long as the pearl has strong lustre, minor surface markings don’t detract from its beauty. In fact, they can add character and authenticity, especially in high-quality, naturally formed pearls rather than heavily processed ones.
Size: why bigger doesn’t always mean better
Size is often misunderstood as a primary marker of pearl quality. Larger pearls are rarer and therefore more expensive, but that doesn’t automatically make them better. Proportion matters.
On petite frames, oversized pearls can dominate the look, drawing attention to the jewellery rather than the wearer. Instead of elegance, the result can feel ostentatious. The best pearl quality is about balance, not impact for impact’s sake.
Find out more in: Pearl Size: Find Your Pearl Jewellery Personality
Shape: classic, baroque and everything in between
Perfectly round pearls are traditionally prized, but shape is increasingly recognised as a personal and stylistic choice. Baroque pearls, with their irregular forms, are particularly interesting.
During their formation, baroque pearls develop thinner, layered surfaces as the shape evolves. These multiple fine layers often create exceptional lustre, giving baroque pearls a depth and glow that rivals, and sometimes surpasses, round pearls. Choosing shape is best done with the wearer’s features and style in mind.
So, what really defines the best pearl quality?
All in all, the best pearl quality is about lustre first, supported by balance, proportion and suitability for the wearer. When these elements align, pearls truly enhance the person wearing them.
If you’d like expert guidance on choosing pearls that truly suit you, book a one-to-one consultation with Coleman Douglas Pearls. We’ll help you understand quality beyond labels and select pearls that bring out your natural glow.
