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  1. 182 products. 18K White Gold Engagement Rings. 366 products. 18K Yellow Gold Engagement Rings. 359 products. 18K 玫瑰金. 444 products. 18K 白金. 853 products.

    • 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...

  2. 2022年6月10日 · Roselle Jewelry網站上の培育水平石產品,包含全球三大最受歡迎的 培育水平石鑑定證書: 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 尖石鑑定書 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水平石切磨和貿易中心。

  3. 2019年10月26日 · 天女項鏈. 關於天女,您要承知. 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”。 具備“極光效”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。

  4. 2022年5月30日 · 實驗室製造鑽石指南 在過去的 10 年中,實驗室製造的鑽石作為天然鑽石的一種經濟實惠的替代品,越來越受歡迎。實驗室培育的寶石可以輕鬆匹配任何天然寶石的光澤,但許多人認為它們不那麼稀有和珍貴。我們正在闡明是什麼讓這些實驗室製造的鑽石與天然寶石如此相似但又大不相同。

  5. 2022年12月5日 · 實驗室培育水平石 これは、實別室に培育出來的水平石、為碳元素組成の晶質、一切光学、物理和化学特性均與開採水平石を指す。 天然水平石 為自然界は最硬物質、硬度10、色拡散0.044、屈折率2.417、比重3.52と知られている。 水ダイアン(施華洛世奇) また稱人造水晶、晶尖または萊茵石、市場に ...

  6. 2019年8月25日 · 通過個性化的結婚戒指雕刻,使您的珠寶更有意義。 當代激光技術為添加文字雕刻帶來了很大的創造靈活性。 從首字母縮寫到有意義的日期,您對環形雕刻的選擇非常無限。 需要一些啟發嗎? 我們創建了下面的列表,其中包含許多想法和具體示例,可幫助您確定完美的戒指雕刻選項。 在Roselle ...