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2019年10月26日 · 日本真珠綜合研究所和GIA的珠寶應用鑑定師Yoko來為您解答“天女”的各個方面。 天女項鏈. 關於天女，您需要了解的. 天女，由日本真珠科學研究所命名，代表了白色系akoya珍珠中的卓越品質。 日本真珠科學研究所所長小松博在2001年發現，在珍珠專用鑑定儀器的觀測下，可以看到在優質akoya珍珠下半球會出現3種干涉色，即“極光效應”。 具備了“極光效應”的akoya珍珠且直徑在6mm以上的，即命名為“極光天女”，一般簡稱為“天女”。 關於珠層： 天女珠層的標準為0.4mm，0.4mm以下的不可評定為天女。 很多賣家宣稱，珍珠層越厚珍珠光澤越美，很多買家也深以為然。 然而事實並非如此。 珠層並非越厚光澤越好，珠層厚度與光澤、瑕疵沒有直接聯繫。
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。
- 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...
2021年6月28日 · In News 0 comments. 題目＜鑽石漲價＞. 在疫情之下，鑽石這些奢侈品的價格仍見上升，近期就有兩間鑽石開採商加價一成。. 其實在幾可亂真人造鑽石的競爭下，為何鑽石仍然漲價？. 是否市場資金氾濫，鑽石也成為抗通脹的投資產品呢？. 早前Roselle Jewelry受TVB《財經 ...
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。
2019年10月26日 · 天女，由日本真珠科學研究所命名，白色系akoya珍珠中的卓越品質を代表する。 下半球會出現3種干涉色、即ち“極光效王”。 具備“極光效王”のあこや珍珠及び直徑在6mm以上、即命名為“極光天女”、一般簡稱為“天女”。 關於珠層： 天女珠層の標準為0.4mm，0.4mm以下の不可評価為天女。 很多賣家宣稱，珍珠層越厚珍珠光澤越美，很多買家も深為然。 珠層並非越厚光澤好，珠層厚並光澤，瑕畝有直接聯繫。 決定珍珠光澤は珍珠質層結晶層間の配列加重が平坦密であるかどうかです。 例例，就如同層一層的磚塊疊加，磚塊集合列整齊緊密，那這面牆就平整筆直而結實，如果磚塊排列不整齊，那這面牆就會凹凸不平很不美観。 如果珍珠層單層像這樣整齊緊密的結合在一個，那麼整個珍珠表面就會呈現完美光滑的狀態。
