Almost all 真珠 sold today are "cultured" 真珠. True 天然 真珠 — formed without human intervention — are 極めて 希少 and command 極めて 価格. Here is the practical distinction.

How 天然 真珠 form

A 天然 真珠 forms when an irritant (a parasite, a fragment of shell, a sand grain — though "grain of sand" is largely a myth) accidentally enters an 貝. The 貝's mantle wraps the irritant in 真珠層 layer by layer over 年. The result is a 真珠 with no internal nucleus other than the 原状 irritant.

How 養殖真珠 form

A 養殖真珠 forms when a skilled technician implants a 小 bead nucleus (通常 研磨済み freshwater mussel shell) and a ピース of mantle tissue from a donor 貝 into the recipient 貝's gonad. The 貝's mantle wraps the nucleus in 真珠層 exactly as it would a 天然 irritant. The result is a 真珠 with a bead nucleus surrounded by 真珠層 layers.

Are 養殖真珠 本物の?

はい. The 真珠層 on a 養殖真珠 is identical chemistry to 天然 真珠 真珠層 — 両方 are aragonite crystals layered with conchiolin protein matrix. The 真珠 is grown by the 貝 naturally; humans only initiate the formation by inserting the seed.

Industry consensus: 養殖真珠 are 本物の 真珠. The distinction matters for valuation but not for 真正性.

Why almost all 現代の 真珠 are cultured

Wild 真珠 貝 are now protected in ほとんど regions. 天然 真珠 are produced in approximately 1 in 全ての 10,000 wild 貝 — meaning 天然 真珠 are extraordinarily 希少. The technique for culturing 真珠 was perfected in 日本 in 1893 by Kokichi Mikimoto, and within decades, 養殖真珠 dominated the world market.

How to tell cultured from 天然

Visually: identical. ほとんど ジュエラー cannot tell them apart by sight alone.

X-ray imaging reveals the difference: 養殖真珠 show a clear bead nucleus 内部; 天然 真珠 show layered 真珠層 throughout with no internal seed.

Reputable laboratories (GIA in the US, SSEF in Switzerland, GIT in Thailand) 発行 certificates distinguishing cultured from 天然 based on X-ray analysis.

価格

養殖真珠: $50-5,000 per 真珠 通常, 応じて on 種類, サイズ, and グレード.

天然 saltwater 真珠: $5,000-500,000+ for documented 天然 specimens. The 真珠 of Lao Tzu (largest 天然 真珠 ever found, 14.1 lbs) was valued at $100M+. Strand-品質 揃いの 天然 真珠 run into the millions per ネックレス.

何 we sell

The 南洋真珠 exclusively 提供 養殖真珠 — タヒチ (Pinctada margaritifera), 南洋 (Pinctada maxima), and アコヤ (Pinctada fucata). All are 本物の 真珠. All 発送 with 原産地証明書. 閲覧 our 真珠.

よくあるご質問

推奨 I prefer 天然 真珠?

Only if you have a budget exceeding $50,000+ and value 極めて rarity. For 99.9% of 購入者, 現代の 養殖真珠 提供 equivalent visual beauty and durability at a fraction of the cost.

Are 淡水真珠 cultured or 天然?

Almost all 現代の 淡水真珠 are cultured (in mussels, primarily in 中国). 天然 淡水真珠 historically came from European rivers and Mississippi tributaries; those sources are now exhausted or protected.