How to Choose a Pearl Necklace: The Complete Luxury Buyer's Guide

A pearl necklace is one of the most enduring symbols of elegance in the world. From Audrey Hepburn to modern royalty, pearls have adorned the most iconic women in history. But choosing the right pearl necklace requires knowing what to look for — and what to avoid.

This guide covers everything you need to make a confident, informed choice.

Types of Pearls: What's the Difference?

Freshwater Pearls

Cultured in freshwater lakes and rivers, primarily in China, freshwater pearls are the most accessible and versatile option. They come in a wide range of sizes, shapes, and colours — from classic white and cream to soft pink and lavender. Modern freshwater pearls have improved dramatically in quality and now rival saltwater pearls in luster.

Akoya Pearls

The classic Japanese pearl. Akoya pearls are saltwater pearls known for their perfectly round shape, high luster, and bright white colour with rose or silver overtones. They are the quintessential pearl necklace pearl.

Tahitian Pearls

Grown in the black-lipped oyster in French Polynesia, Tahitian pearls are naturally dark — ranging from charcoal grey to deep green and peacock blue. They are among the rarest and most exotic pearls in the world.

South Sea Pearls

The largest and most luxurious of all cultured pearls, South Sea pearls are grown in Australia, Indonesia, and the Philippines. Their satiny luster and substantial size (typically 10-15mm) make them the pinnacle of pearl luxury.

The 5 Qualities That Define Pearl Value

1. Luster

Luster is the most important quality factor in a pearl. It refers to the depth and brilliance of the reflection on the pearl's surface. High-luster pearls appear almost mirror-like, with sharp, bright reflections. Low-luster pearls look chalky or dull.

2. Surface Quality

No pearl is perfectly flawless — they are organic gems, after all. But the fewer and less visible the surface imperfections (spots, bumps, or wrinkles), the more valuable the pearl.

3. Shape

Round pearls are the most prized and the most difficult to culture. Near-round, oval, button, and baroque (irregular) shapes are also beautiful — and often more affordable.

4. Size

Pearl size is measured in millimetres. Larger pearls are rarer and more valuable. For a classic necklace, 7-8mm freshwater pearls offer an elegant, wearable look. 9-10mm and above makes a more substantial statement.

5. Colour

Pearl colour has two components: body colour (the dominant colour) and overtone (the secondary colour visible on the surface). White pearls with rose overtones are the most classic. Cream, ivory, and golden tones are equally beautiful and suit warmer skin tones.

Pearl Grades: What AAAA Means

Pearl grading is not standardised across the industry, but most reputable jewellers use an A-AAAA scale. AAAA represents the highest quality — exceptional luster, near-flawless surface, perfectly round shape, and uniform colour. At SM, our AAAA-grade pearl necklaces are hand-selected from the top fraction of each harvest.

Necklace Length Guide

• Choker (14-16 inches): Sits at the base of the neck. Classic and elegant.
• Princess (17-19 inches): The most versatile length. Falls just below the collarbone.
• Matinee (20-24 inches): Elegant for both casual and formal wear.
• Opera (28-36 inches): Dramatic and sophisticated. Can be worn doubled.

How to Care for Your Pearl Necklace

Pearls are organic gems that require gentle care. Always put your pearls on last — after perfume, hairspray, and makeup. Wipe them with a soft cloth after wearing. Store them separately from other jewelry to avoid scratching. Have them restrung every few years if worn regularly.

With proper care, a quality pearl necklace will last — and improve — for generations.

Explore our cultured pearl necklace collection →