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  1. 2019年10月26日 · 10分鐘讓你全面承知akoya天女珍珠(附珍珠賣家騙術揭露). 今年未来日本akoya珍珠風を飾る全國,無論網店還是實體店的珍珠消費者,無一不愛日本akoya珍珠。. 東方女性之美。. 作為當今珍珠資深玩家の“標配”,絕大多數消費者必擁有一條“天女”,或は準備 ...

    • 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. 2023年11月16日 · English 繁體中文 日本語 한국어 Deutsch français

  3. 2022年12月5日 · 實驗室培育鑽石 是指在實驗室中培育出來的鑽石,為碳元素組成的晶體,一切光學,物理和化學特性均與開採鑽石相同。 硬度10,色散0.044,折射率2.417,比重3.52。 天然鑽石 是碳元素組成的晶體,亦稱金剛石,刻面棱線銳利,折射高,燈光下顯得光采動人。 為自然界已知最硬物質,硬度10,色散0.044,折射率2.417,比重3.52。 水鑽 (施華洛世奇) 又稱人造水晶,晶鑽或萊茵石,在市場上有各種名稱。 是一種加了鉛與塗層的玻璃,硬度極差,平日配戴較易因為磨損,而失去光澤與火彩 (圖中可見磨損與缺角)。 莫桑石 (摩星石) 正式名稱叫合成碳矽石 (Moissanite),俗稱美國鑽或莫桑石,常帶有微藍或微黃色,硬度9.25,由於硬度稍低,刻面.

  4. 2023年12月18日 · English 繁體中文 Deutsch français 한국어 日本語 русский 简体中文

  5. 2023年10月17日 · English 繁體中文 Deutsch français 한국어 日本語 русский 简体中文

  6. 2023年11月20日 · English 繁體中文 Deutsch français 한국어 日本語 русский 简体中文

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