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評估鑽石的價值

Updated on 27 5 月, 2024

With over 40 years of expertise, Diamond Registry’s CEO and owner, Nissan Perla, is your trusted guide in the diamond-buying world. Recognized by prestigious publications like The Washington Post and Chicago Tribune, Nissan’s extensive knowledge and experience in evaluating, buying, and selling diamonds are unparalleled. Our commitment to integrity, transparency, and delivering exceptional value ensures that you make an informed decision when acquiring your timeless treasure. Choose Diamond Registry for personalized guidance, education, and a curated selection of the finest quality diamonds, backed by decades of industry expertise and dedication to your satisfaction.

Table of Contents

Published on 8 4 月, 2024
Updated on 27 5 月, 2024

儘管所有鑽石均由壓縮碳組成,但每顆鑽石都各不相同。鑽石有多種形式、尺寸、色調以及有助於識別它們的內部和外部特徵。所有拋光鑽石在某種程度上都是珍貴的,但人們如何知道哪一顆比另一顆更有價值呢?

What makes us your trusted partner

With over 40 years of expertise, Diamond Registry’s CEO and owner, Nissan Perla, is your trusted guide in the diamond-buying world. Recognized by prestigious publications like The Washington Post and Chicago Tribune, Nissan’s extensive knowledge and experience in evaluating, buying, and selling diamonds are unparalleled. Our commitment to integrity, transparency, and delivering exceptional value ensures that you make an informed decision when acquiring your timeless treasure. Choose Diamond Registry for personalized guidance, education, and a curated selection of the finest quality diamonds, backed by decades of industry expertise and dedication to your satisfaction.

鑽石的價值由多種變量決定。為了解決關於鑽石價值的分歧,鑽石行業專家採用了一套特定的標準來幫助確定鑽石的確切質量和吸引力。美國寶石學院制定了這些標準,稱為 4 C,作為確定鑽石價值的基礎。它們如下:克拉、顏色、淨度和切工

除了 4 C 標準之外,還有一些其他標準可以幫助我們確定鑽石的價值。這些不是最重要的元素,但它們肯定會產生影響。

1。尖底

尖底是鑽石的底點。尖底通常有點平坦或多面,會影響鑽石的光性能。鑽石尖底的大小和角度是可能影響其價值的兩個重要特徵。理想的尖底應該位於鑽石底部的正中,並且尺寸適中。鑽石受到角度偏差和尺寸增長的損害。幾個世紀前,大多數鑽石中都發現了大底尖。例如,老礦切割有一個大尖底,在整個格魯吉亞和維多利亞時代都很流行。舊歐式切工,另一個較早的切工,也有一個大而可見的尖底。大底尖不再被認為在鑽石中具有吸引力。因為尖底平行於鑽石的檯面,它會在鑽石的尖端形成一個額外的刻面,光線可以通過該刻面逸出,從而降低鑽石的亮度。在對鑽石進行分級時,寶石學家會考慮各個方面,包括尖底。尖底很小或根本沒有尖底的鑽石通常被認為比具有大而可見尖底的鑽石具有更好的切工。由於鑽石的尖底非常小,寶石學家通常會在 10 倍放大鏡下對其進行評級。

2。腰圍厚度

腰圍的厚度,或形成鑽石頂部(冠部)和底部(亭部)交匯處的邊緣,可能會對鑽石的價值產生不利影響。腰圍的厚度會影響鑽石的對稱性,這對光性能很重要。首先,最佳腰圍厚度不應太薄,因為這會增加碎裂的危險。另一方面,腰圍厚度不應過厚,因為這會導致“自重”,這會使鑽石看起來更小。還應避免極端的腰圍厚度波動(例如,非常薄 – 非常厚),因為它們通常表示對稱性困難和切割不良。除了較差的光學性能外,極端波動可能會導致整個設置過程出現問題。如果腰部厚度極薄,則冠部刻面和亭部刻面的刻面連接處會產生刀刃。從機械角度來看,鑽石的晶體結構在刀刃處最脆弱,使其極易受到損壞。腰帶上的拋光劑也會使鑽石看起來沒有吸引力。例如,如果粗腰圍足夠厚,它可能會在桌面下產生難看的灰色反射。

3。激光銘文

激光刻字對鑽石價值的影響引發了很多爭論。激光刻字會在鑽石表面留下微小的壓痕,使其帶有瑕疵。因此,它應該會影響鑽石的淨度,從而影響其總價值。具有諷刺意味的是,由於大多數認證公司都對鑽石進行雕刻,因此他們有權將其完全排除在分級過程之外。鑽石激光刻字涉及使用非常微小且精確的激光束在鑽石的腰圍上精細蝕刻數字、字符甚至圖片。使用珠寶商的放大鏡可以看到激光雕刻,但肉眼看不到,對鑽石的質量或光性能沒有影響。鑽石銘文附有價格標籤。大多數客戶認為它是當今市場上必不可少的附加值,而其他人則認為它是鑽石證書的預期元素。

獎金!

借助 Diamond Registry 的綜合方法和廣泛的全球行業聯繫,輕鬆銷售您的鑽石,幫助您快速為您的鑽石找到最佳買家。訪問 www.diamondregistry.com/sell-your-ring 邁出快速、簡單、可靠的鑽石銷售方式的第一步。

想立即檢查和計算每克拉鑽石嗎?前往 DR 的鑽石價格計算器 www.diamondregistry.com/diamond-price-list/#calc-move-to 了解如何。從此成為鑽石行業可靠且值得信賴的克拉計算器!

免費報價
Picture of Nissan Perla

Nissan Perla

Nissan Perla has over 40 years in the diamond industry and is the CEO and Owner of Diamond Registry since 1979. Nissan is recognized as one of the talented experts in the diamond world and has been mentioned in publications such as The Washington Post, Chicago Tribune, The Time Out, Sassy HK, and more.

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Client Reviews

Rebecca Schott
Rebecca Schott
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Nissan, David and his team were extremely accommodating, understanding and patient with our purchase. They took the upmost care to find the best solution for our needs and went above and beyond normal ‘customer service’ standards. I have absolutely no qualms recommending their products and services. Both were absolutely flawless. I will continue to sing them praises and will most definitely purchase from them again in the future. Thank you again!
Gershom Menachem
Gershom Menachem
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Great team of diamond experts who show personal care for the client’s needs and aftersales service. They really go the extra mile to make it happen no matter the challenges ahead. Rush orders, international shipping, upgrade service, jewelry repair, large diamonds, small items, precious stones. Very honest and open information to the clients. You will feel like talking to a friend.
Thom P.
Thom P.
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Bought a beautiful stone here for an engagement ring. I was a little apprehensive since you’re buying something unseen. But Cid made it easy. In fact, Nissan, the owner also gave a call to make me more comfortable. They sent me the stone to take to a local jeweler with only my Amex in case I bailed on them.
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