If you've been shopping for a freshwater pearl necklace, you've probably seen grades like AAA and AAAA listed. What do these actually mean — and does a higher grade make a visible difference?
Here is a straightforward answer.
Pearl Grading Is Not Standardised
There is no international body that certifies pearl grades. Different jewellers, wholesalers, and importers use different scales, which is why the same term can mean different things from one brand to the next.
At Hardly Common, we use a five-tier scale — A through AAAA — and we apply it consistently to every pearl we source, based on four visible factors: luster, surface, shape, and nacre quality.
The Four Factors That Determine Grade
Luster is the most important one. Luster describes how light reflects off a pearl's surface — specifically, whether you can see a sharp, distinct reflection in it. A high-luster pearl will show you a clean image of your surroundings, almost like a small mirror. A low-luster pearl looks chalky or flat by comparison.
Surface quality refers to how clean the pearl looks under good light. Natural pearls grow inside a living mollusc, and most develop minor irregularities — small spots, wrinkles, or bumps — as part of the process. AAAA-grade pearls are selected for minimal surface irregularity: no visible marks in normal wear, and only very faint imperfections visible under close inspection.
Shape affects how well the pearls sit in a strand and how consistent a necklace looks when worn. A perfectly round pearl is rarer and more difficult to achieve. AAAA rounds are selected for tight spherical consistency.
Nacre is the substance that makes up the pearl itself. Thicker nacre produces a deeper, more complex luster that does not wear away with time. Thin nacre may look bright initially but dulls with regular wear.
What AAAA Actually Looks Like
An AAAA-grade freshwater pearl has mirror-grade luster: you can see a sharp reflection in the surface in normal indoor light. The surface is very clean — no visible blemishes at normal viewing distance. The shape is consistently round. And the nacre is substantial, built up over a longer cultivation period.
A AAA pearl is excellent but has a slightly softer luster or minor surface marks visible on close inspection. It is still a beautiful pearl — many people prefer its quieter appearance. But side by side with an AAAA, the difference is clear.
Why It Matters for a Necklace Specifically
For a single pearl — a stud or a pendant — the grade affects how beautiful that one stone looks. For a strand necklace with 50 or 60 pearls, grade affects how consistent and cohesive the piece looks as a whole. A lower-grade strand may show variation in luster from pearl to pearl, or surface marks that catch the eye at certain angles.
For a piece meant to last 20 or 30 years — or to be passed to the next generation — AAAA-grade selection is worth the difference in cost.
What We Select
Every pearl necklace and bracelet at Hardly Common is made from AAAA-grade pearls, personally selected at source. For our earring lines, we select for equivalent quality within each design.
Pieces Made From AAAA Pearls
Each one is hand-knotted and made to order in our Ontario studio.
- Dainty Seed Pearl Necklace — 4–4.5mm AAAA seed pearls, adjustable length
- Modern Organic Shape Pearl Necklace — 5.5–6mm AAAA drop pearls that shift with the light
- Opera-Length Pearl Necklace — over 100 individually knotted 4–5mm AAAA rounds
- Freshwater Pearl Bracelet — 7–8mm AAAA near-round pearls on double-knotted silk
If you have questions about the specific pearls in any of our pieces, we're happy to talk you through them before you buy.
Browse our AAAA freshwater pearl necklaces and freshwater pearl earrings, all handcrafted in Ontario, Canada.
