Pearls are organic gems formed inside mollusks when nacre layers coat an irritant; they come in natural and cultured varieties and in freshwater and saltwater types, each with distinct looks, values, and care needs. This blog explains how pearls form, the main types, quality factors, styling ideas, and practical care tips for jewellery owners.
What pearls are and how they form
Pearls are organic gemstones created when a mollusk secretes nacre (mother‑of‑pearl) around an irritant or implanted nucleus, layer by layer, until a pearl forms. Natural pearls form without human intervention and are extremely rare; cultured pearls are real pearls started by a deliberate nucleus insertion.
Main types of pearls
• Freshwater pearls: Grown in mussels; often produced in multiples per mollusk and valued for variety of shapes and colors. They tend to show softer luster and more organic shapes.
• Saltwater pearls: Grown in oysters, usually one pearl per mollusk; include Akoya, Tahitian, and South Sea varieties and are prized for higher luster and rounder shapes.
• Natural vs cultured: Natural = formed entirely by nature; cultured = human‑assisted but biologically identical. Natural pearls command premium prices due to scarcity.
How pearl quality is judged
Pearl value depends on luster, surface quality, shape, color, and size.
• Luster is the most important: sharp, mirror‑like reflections indicate thicker, higher‑quality nacre.
• Surface: fewer blemishes = higher grade.
• Shape: perfectly round is rare and often more valuable; baroque shapes are prized for unique designs.
Styling and jewellery uses
• Classic strand: uniform Akoya or South Sea pearls for formal wear.
• Modern looks: freshwater baroque pearls in layered necklaces or mixed‑metal settings.
• Statement pieces: large South Sea or dark Tahitian pearls as single‑pendant focal points.
Pearls pair well with both gold and silver and suit both minimalist and ornate designs.
Practical care and maintenance
• Avoid chemicals: perfume, hairspray, and cosmetics damage nacre.
• Clean gently: wipe with a soft, damp cloth after wear; occasional mild soap rinse and air dry.
• Store separately: keep pearls flat in a soft pouch or lined box to prevent scratches and dehydration.
• Restringing: have pearl strands restrung every 1–3 years depending on wear.
Buying considerations and risks
• Decide on look vs budget: freshwater pearls offer variety at lower cost; saltwater (Akoya, Tahitian, South Sea) offer higher luster and price.
• Verify origin and treatments: ask for honest disclosure about dyeing, bleaching, or coatings.
• Resale and rarity: natural pearls are rare and collectible; cultured pearls are mainstream and widely available.