雅虎香港 搜尋

搜尋結果

  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 ...

  2. 2024年4月29日 · 網站列出了全部鑽石價錢💰,供客人自助選購🛒 請到以下鏈結選購其他尺寸裸石及觀看鑽石影片:⬇ ⬇ https://rosellejewelry.com/pages/lab-grown 只需幾個步驟便可以找到心目中理想的培育鑽石。 價格只是天然的25%起,與天然鑽石分別? 當然是價格更化算,商品更環保,也不怕買到血鑽。 Are you looking for lab-grown diamond?

  3. 2021年6月28日 · June 28, 2021. 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財經透視節目訪問提供鑽石意見, 作為全港首間售賣培育鑽石及首間培育鑽石批發商,負責人是如何提供意見的呢? 有興趣的讀者可以登入下面連結看足本版:

    • 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...

  4. 換貨服務. 換貨及退款. 換貨政策. 閣下於收取貨品時必須檢查所訂購之貨品是否存有損毀及齊存,若發現所訂購之產品出現破損,可致電客戶服務部安排更換貨品。. 一經Roselle Jewelry調查及核實後,本部將安排換貨。. 如所要求更換之貨品已經售罄Roselle Jewelry會 ...

  5. 產品型號 WR008 主石材質 實驗室培育鑽石|天然鑽石 形狀 圓形 主石顏色 F-G 合計重量(克拉/卡) 由0.54(31pcs) 0.02/pcs 淨度 微瑕 (VS) 切割 極好 (Excellent) 寬度(mm) 2.0 戒指尺寸 HK#5 ~ HK#25|US#2.75 ~ US#12.5

  6. 2022年5月30日 · 實驗室培育鑽石是如何製造的: 現在,在#1 競賽中,我們將探討實驗室培育鑽石是如何製造的,以及它們與天然來源的鑽石有何不同。 現在是 2019 年,技術每天都在取得新的進展。 毫不奇怪,我們發現了一種在實驗室內虛擬複製天然鑽石的方法。 這種做法可以追溯到 1950 年代,但直到 2010 年代初才出現在市場上,距這種做法首次引入已有近 60 年。 根據 GIA 傑出研究員 James Shigley 博士的說法,製造實驗室製造鑽石時使用了兩種方法。 第一種方法基本上模擬瞭如何使用高壓和高溫在地殼深處製造鑽石。 這種方法稱為 HTHP。

  1. 其他人也搜尋了