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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.
- 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...
2022年6月10日 · Roselle Jewelry網站上的培育鑽石產品，包含了全球三大最受歡迎的 培育鑽石 鑑定證書： IGI 國際寶石鑑定所. GCAL 寶石鑑定與保障實驗室. GIA 美國寶石研究院. 1. IGI 鑽石鑑定書. IGI 國際寶石鑑定所 ，於1975年在 比利時安特衛普 成立，這是國際上歷史悠久的鑽石切磨和貿易中心。 該實驗室率先在鑽石鑑定過程中進行了多項創新，並培訓了許多世界頂級寶石學家。 IGI 為鑑定實驗室培育鑽石最通用的機構之一，他們的證書詳細介紹了每顆鑽石的關鍵特徵，主要可分為以下種類。 IGI- 1克拉以上. IGI 培育鑽石鑑定書. IGI- 1卡/克拉以上 (附雷射刻字影像版) IGI 培育鑽石鑑定書. IGI- 1卡/克拉以下. IGI 培育鑽石鑑定書.
2024年5月27日 · 「值得信賴」的鑑定機構. 說出幾個數字或是給予等級並不困難，真正的困難來自「公正性」，鑽石鑑定機構面對龐大的利益，要能持續做出公正客觀的裁決十分困難。 過去也有不肖業者自己化身鑑定師，或是自印證書，因此，建議尋求安心、知名的國際鑑定機構及品牌，消費者只要確認值得信任的國際證書內容即可，挑選鑽石更輕鬆。 延伸閱讀 鑽石國際證書不只GIA，值得信賴的國際證書. 不只品牌保證書，建議挑選GIA、IGI等國際知名第三方鑑定單位. 挑選鑽石，不只GIA證書， 美國珠寶學院（Gemological lnstitute of America，簡稱GIA）雖然也是值得信任的國際鑑定單位，且知名度極高，不過在車工等級（Cut）最多只會評到Excellent。
238 products. 18K White Gold Engagement Rings. 422 products. 18K Yellow Gold Engagement Rings. 415 products. 18K 玫瑰金. 570 products. 18K 白金. 979 products.
2019年6月26日 · 為了更好證明我們是使用鑽石對比而不是兩顆一樣的RZ人造鑽石，我們使用鑽石筆測試證明. 左側是坊間出售的仿鑽【蘇聯石 (又名高碳鑽,SONA鑽,俄羅斯鑽,鍍膜鑽)】，明顯帶藍,透光差,火光較呆版, 帶少許膠感,光澤沒跳動感,沒金剛光澤帶奶白 (影片拍不出實物更明 ...
