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Two pearls can be the same size and have very different prices. Understanding their type, glow, surface, and overall character helps you choose a pearl you love and understand what you are paying for.

Know the type first

Cultured pearls are real pearls grown in mollusks with human assistance; “cultured” does not mean imitation. Freshwater and saltwater describe the growing environment, rather than a quality grade.

• Tahitian: Saltwater cultured pearls associated with French Polynesia, with bodycolors and overtones that can include gray, green, and peacock effects.
• South Sea: Saltwater cultured pearls associated with white, silver, and golden tones, often in larger sizes.
• Akoya: Saltwater cultured pearls often chosen for a classic round look and bright reflections. Included here for comparison; check our live catalog for the types we currently offer.
• Freshwater: A diverse category with many shapes and colors. Edison pearls belong to the freshwater category.
• Keshi: A non-bead-nucleated pearl formed in a cultivation setting. The term does not specify a single color or quality grade; check the stated origin and dimensions.

Luster: look at the reflections

Luster is the quality of light reflected from and within a pearl. Look for reflections that appear lively and well defined rather than faint and cloudy. Compare pearls under similar lighting, and within their type: a South Sea pearl’s satin-like glow can differ from the sharper reflections of another variety. When other quality factors are comparable, stronger luster generally raises value.

Seven details that help explain quality

• Size: Read the millimeter measurement. Larger examples generally command more within the same type when other qualities are equal.
• Shape: Roundness and symmetry affect rarity, but distinctive drops and baroque shapes can also be prized.
• Color: Consider the main bodycolor and any overtones. Desirability and rarity matter; your favorite color matters too.
• Luster: Assess the brightness and definition of reflections.
• Surface: Notice the number, position, and visibility of marks. A few small features differ from extensive damage.
• Nacre: This layered material contributes to beauty and durability. A photo alone cannot establish its thickness.
• Matching: For pairs and strands, consider how consistently the pearls work together—or whether their differences form an intentional design.

Natural character versus damage

Pits, rings, and irregular contours can be part of a pearl’s appearance. Their effect depends on severity and placement. Ask about obvious cracks, peeling, or deep surface issues rather than assuming every mark is harmless. View more than one angle when possible, including the area around a drill hole.

Why one pearl costs more than another

Price reflects a combination of qualities, rarity, and demand. A smaller pearl with exceptional luster and an appealing color may cost more than a larger, duller pearl. A well-matched pair or strand requires careful selection. Compare like with like: type, size, shape, surface, and luster together.

What does AAA mean?

Letter grades are not a universal scale shared by every seller. An AAA label alone cannot establish that two listings are equivalent. Ask what the grade describes, and use the measurements, surface description, photos, and any relevant laboratory report alongside it. A seller’s letter grade is not itself an independent laboratory report.

Pearl value and finished-jewelry price

A necklace price includes more than the pearl: metal, chain, findings, craftsmanship, and design contribute too. Treat the listed price as the price of that finished piece, rather than an appraisal of the loose pearl. Resale value may differ from retail price.

How to choose online

1. Choose a pearl type and color direction you enjoy.
2. Compare measurements and the finished design.
3. Look at reflections and surface details in multiple images or video.
4. Ask whether you receive the exact pictured pearl.
5. Confirm treatments or color origin if those details matter to you; a photo cannot prove them.

Need help comparing two pieces? Send us the product links and tell us whether you value color, size, shape, or a particularly bright glow most.

Explore our pearl jewelry buying guide and pearl care instructions.

Further reading: GIA Pearl Quality Factors, GIA Pearl Buyer’s Guide, and GIA’s overview of pearl types.