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  1. 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”。 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。 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。

    • 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12月5日 · 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,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,刻面之間的棱線較為圓鈍,同時有著特殊雙折光線現象 (圖中可見重影)。 鋯石 (高碳鑽)

  3. 특별한 創立 Roselle Jewelry ®是屬於BRILLIANT INTERNATIONAL (HK) GROUP LIMITED 一個飾product牌, 2009年開始與前任GIA鑽stone鑒定師一同創立及研發새로운형寶stone材質以"RZ"命名。 也因為Roselle Jewelry의 宗旨是讓天下的女人道可以擁有鑽stone般完美的寶stone, 2015年終於完成最完美的RZ ®人造鑽stone並䝿證肉眼100%與鑽 ...

  4. 不可否認馬眼形切割鑽石的永恆優雅。 由於長度較長,馬眼形鑽石看起來比具有相同克拉重量或大小的其他鑽石形狀更大。 擁有輝煌的 58 個切面,形狀閃耀著大量的火光和閃光。 欖尖形切割的討人喜歡效果營造出修長手指的錯覺。 由於其複古風格,馬眼形鑽石在復古傳家寶珠寶中很受歡迎,並且在吊墜、胸針或項鍊等配飾中看起來特別迷人。 與梨形或橢圓形切割鑽石等其他細長形狀的鑽石一樣,欖尖形鑽石在鑽石中間容易出現“蝴蝶結”,由於刻面的排列,鑽石的一部分看起來已經死了。 為防止出現這種情況,請選擇長寬比低於 2.20 的馬眼形切割。 無論如何,目視檢查可以確定您感興趣的馬眼形切割是否有領結。 侯爵夫人鑽石戒指和其他珠寶由於其鋒利的尖端可能也需要特別小心,這會使寶石容易受到損壞。 馬眼形切割鑽石指南.

  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、尖または萊茵石、市場に ...

  6. 2022年5月30日 · 購買訂婚戒指、結婚戒指或日常鑽石可能會很昂貴、壓力很大,而且會帶來很多不確定性,因為讓我們面對現實吧,你不是寶石學家。 您將有一百萬零一個問題要問,這沒關係。 一般人對鑽石知之甚少。 您將面臨的最緊迫的問題之一是是購買天然來源的鑽石還是購買實驗室培育的鑽石。 不要驚慌 ...

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