雅虎香港 搜尋

  1. 防漏工程 相關

    廣告
  2. 憑藉多年經驗及專業師傅為酒樓食肆廚房、浴室、廁所等提供防水工程工程絕不外判

    • 輕石屎工程

      提供專業人仕上門評估損毀狀況,

      確定施工範圍,提供專業意見。

    • 公司簡介

      承辦各類防水防漏工程絕不外判,

      由十年以上經驗之師傅施施工。

搜尋結果

  1. Explore our collection of loose lab grown diamonds at Roselle Jewelry. Find the perfect diamond for your unique jewelry piece.

    • 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 ...

  3. Opening Hours. Monday to Saturday : 12:00 PM – 8:00 PM. Sunday & public holiday : 12:30 PM – 7:30 PM. +852-6165 7595.

  4. 2019年6月25日 · 我們今天知道的枕形切割有一排額外的切面,通常有61個切面。 這使得枕形切割出所有方形和矩形寶石中最閃耀的切割之一。 與其他鑽石切割的差異. 枕形切割是一個不是最知名的切割之一。 因此,人們常常將其誤認為是其他鑽石切割。 尤其是上丁方形 (Asscher)或者雷帝恩切割 (Radiant) 與上丁方形 (Asscher)相比. 枕形其方形的圓角,人們很容易將枕形切割與上丁方形混熬。 不過最容易辨別則是枕形多數採用BRILLIANT CUT,而上丁方形則是使用STEP CUT。 除了上丁方形採用這種切割以外其實連祖母綠切割也是一樣。 與雷帝恩切割 (Radiant)相比. 枕形切割的另一種同為BRILLIANT CUT的雷帝恩切割混熬。 雖然切割組別是相同,但是形狀與枕形切割略有不同。

  5. 世界著名的RZ®人造鑽石是有史以來最實惠,美觀,科學先進,寶石粉注入的人造鑽石!. RZ®人造鑽石採用晶體核心構造, 實驗室培育鑽石 一樣的生產方式,具有最真實,自然的火彩,您可以從鑽石替代品中看到,每卡 (克拉)售價688港幣起。. RZ®人造鑽石提供 ...

  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 ...

  1. 防漏工程 相關

    廣告
  2. 品牌至今已超過80年歷史,推出了眾多家喻戶曉的產品,如犀利牌液體釘及犀利牌彈性填縫劑等。 品牌產品範疇包含自助維修、建築膠粘劑及塗料配套等,產品銷售點遍佈全港九新界,立即了解更多!

  1. 其他人也搜尋了