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2022年12月5日 · 2022年12月5日. 在 新文章 0 comments. 美國聯邦貿易委員會 （Federal Trade Commission，FTC）是美國著名的獨立政府機構，在國際上從事商業行為的人應該耳熟能詳。 該機構成立宗旨有二： 保護消費者. 消除壟斷商業行為. 如果你正考慮購買一顆 實驗室培育鑽石 ，積極的在家上網作功課，你會發現未來鑽石的各個品牌100%會提到美國 FTC 更改了鑽石的定義。 他們提到： 實驗室培育的鑽石與天然鑽石具有相同的光學、物理與化學特性，都是鑽石。 鑽石這個詞不再專指天然開採的鑽石，因為科技的進步，科學家們已經能夠在實驗室培育出很好的鑽石 。 對於消費者來說，這無疑是一篇看過就會遺忘的新聞。
- How Are Lab-Created Diamonds Made?
- Lab Grown Diamond Benefits
- What Colors Are available?
Each laboratory-created diamond is grown by placing a diamond ‘seed’ into a chamber of heat and pressure. This chamber mimics the natural growing process. Crystallization occurs allowing the lab-grown diamond to mature within six to ten weeks. It is then cut, polished and graded by the same world-renowned labs that certify earth-mined diamonds. The...
UNMATCHED BEAUTY
Our collection of lab-created diamonds are available up to IF in clarity, D in color, Ideal in cut, and up to 10 carats in size. They come in a variety of shapesincluding round, rose, emerald, cushion, oval, oval rose, heart, princess, trillion, and radiant. Colors include white, yellow, blue, pink, and green.
UNRIVALED QUALITY
Unlike other retailers, every Rooselle Jewelry lab-created diamond is Type IIa, the purest form of diamond. They are harder and more brilliant than Type Ia diamonds. Only 2% of earth-mined diamonds are of this quality. Furthermore, each diamond is graded and certified by the same leading independent gemological labs that are used to grade earth-mined diamonds.
UNBEATABLE VALUE
Lab-created diamonds cost up-to 40% less than their mined diamond equivalents. Buyers beware: keep an eye out for "grown diamonds" sold for a few hundred dollars per carat. If the deal seems too good to be true, it probably is. Only diamond simulantsfall in this price range.
WHITE LAB-CREATED DIAMONDS
A pure carbon diamond with no impurities will grade as a colorless diamond. However, the majority of both mined and lab-created diamonds contain impurities, most of which are nitrogen. The nitrogen atoms within the diamond lattice create the yellow tint. In cases of fancy colored diamonds, a pure yellow color is created. Nearly all diamonds, both mined and lab-created, start out as yellow diamonds. Over the span of millions of years and exposure to pressure and heat, mined diamonds split the...
YELLOW LAB-CREATED DIAMONDS
Roselle Jewelry’s yellow lab-created diamonds are optically, chemically and physically identical to yellow earth-mined diamonds, but are offered free of conflict and on average 10% of the cost. They are available in a color range from fancy yellow to fancy vivid yellow, in sizes up to 2.0 carats and a variety of shapes. Both mined and lab-created yellow diamonds get their color from nitrogen. While diamonds are made up of carbon, impurities within the stone exist. It is the introduction of th...
BLUE LAB-CREATED DIAMONDS
Blue lab-created diamonds are optically, chemically and physically identical to blue earth-mined diamonds and are offered free of conflict and about 10% of the cost. They are typically offered in sizes smaller than 1.50 carats and come in a color range of fancy light blue to fancy intense blue. Both mined and lab-created blue diamonds get their color from boron. While diamonds are made up of carbon, impurities within the stone exist. It is the introduction of these impurities, in this case bo...
加載上一個. 新娘堆疊扭曲永恆鑽石戒指 - LR20. 從$3,488.00 HKD. 產品編號LR20主石鑽石形狀圓形石顏色F-G總重(ctw)0.40淨度VS切工出色的寬度(mm)2.8重量（克）1.1尺寸HK#5 ~ HK#25|US#2.75 ~ US#12.5*由於是工匠手工製作，可能會因瑕疵而與實際尺寸略有不同。. 快速瀏覽選擇選項.
公主方形切割鑽石指南. 每個鑽石形狀都有一個長寬比，它決定了從上面看鑽石的外觀。 當選擇一個 未鑲嵌 的公主方形鑽石 ，尋找1.0到1.25之間的長寬比。 公主方形切割鑽石的長寬比 (L÷W = 長寬比) 公主方形切割鑽石的鑽石克拉尺寸比較表. 查看完整的公主尺寸表.
精選 最暢銷 按字母順序, A-Z 按字母順序, Z-A 價格, 從低到高 價格, 從高到低 日期, 從舊到新 日期, 從新到舊 Product Code LR95 Main Stone Lab Grown Diamond | Nature Diamond Shape Round Brilliant Cut Stone Color D / F-G Total Stone Weight(ct) 0.27 4pcs
世界著名的RZ®人造鑽石是有史以來最實惠，美觀，科學先進，寶石粉注入的人造鑽石！. RZ®人造鑽石採用晶體核心構造， 實驗室培育鑽石 一樣的生產方式，具有最真實，自然的火彩，您可以從鑽石替代品中看到，每卡 (克拉)售價688港幣起。. RZ®人造鑽石提供 ...
