天然鑽石Vs 實驗室鑽石- 求婚戒指選培育鑽石還是天然鑽石好?肉眼可分出兩者嗎?

天然鑽石Vs 實驗室鑽石- 求婚戒指選培育鑽石還是天然鑽石好?肉眼可分出兩者嗎?

鑽石有分天然和非天然,一般統稱為天然鑽石vs實驗室鑽石

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天然鑽石是大自然的產物,在極端的高温高壓下的地殼深處形成。最年輕的鑽石也有近10億年的歷史。

而非天然的鑽石統稱為實驗室鑽石或培育鑽石,雖然統稱為實驗室鑽石,但其實是在鑽石工廠裡製成的。

HPHT:

工廠模仿出高温高壓的環境,製造出高壓高温(HPHT)的鑽石,類似於天然鑽石的生長環境。

CVD:

而另一種更常見的實驗室鑽石以化學蒸汽沉澱法製造,簡稱為 (CVD) 。製造方法為先將富含碳的氣體(如甲烷)分解成碳和氫原子,然後方形扁平的鑽石晶體會沉積在鑽石的晶種上。

製造一顆一卡左右的實驗室鑽石只需約3-5天。由於鑽石工廠能以大批量的模式生產,因此缺乏天然鑽石的恒久價值。PATREA JEWELRY只售賣天然鑽石,消費者可以放心選購。

無論是天然鑽石還是實驗室鑽石,GIA均可提供鑑定證書,證書上會明確標示是天然鑽石實驗室鑽石。市面的人工鑽石則多使用IGI證書,因為GIA證書便宜得多。

因為人造鑽石的保值能力相比天然鑽石不能相提而論,我們不建議客人購買。天然鑽石在傳承給後代不只是一種情感,更是珍貴寶石自身的價值。

Patrea 小貼士:珍稀的天然鑽石較有保值的能力。相反,人造鑽石價值雖低,但往後的價值只會更低並不保值

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圖一: GIA Natural Diamond Grading Report  

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圖二:GIA Laboratory-Grown Diamond Report - Dossier

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圖三:IGI Laboratory-Grown Diamond Report

想了解更多,請參考下篇文章:

鑽石求婚戒指預算如何決定?

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