雅虎香港 搜尋

搜尋結果

  1. 2019年10月26日 · 關於天女,您需要了解的. 天女,由日本真珠科學研究所命名,代表了白色系akoya珍珠中的卓越品質。. 日本真珠科學研究所所長小松博2001年發現,珍珠專用鑑定儀器的觀測下,可以看到優質akoya珍珠下半球會出現3種干涉色,即“極光效應”。. 具備了 ...

  2. 公主方形切割鑽石 自 1980 年代首次推出以來,公主方形切割鑽石形狀中的受歡迎程度穩步上升。目前, 公主方形剪裁是第二受歡迎的形狀 並且還上升。彈性款式,公主方形切割訂婚戒指 非常適合傳統和現代風格的粉絲。公主方形切割鑽石的優點之一是 由於使用了獨特的切割和拋光技術,任何 ...

  3. 品牌理念. Roselle Jewelry的宗旨是讓天下的女人都可以擁有鑽石般完美的寶石,但是並不是每個人都能毫無負擔購買鑽石. 就算是擁有鑽石的,我們專業的RZ ® 人造鑽石 已經可以完美替代鑽石的存在。. 產品以S925銀鍍鉑金、9K金、18K金、PT950鉑金作為基礎鑲嵌。. RZ ...

    • 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. 六爪單石鑽石訂婚戒指【淨戒托】 - KNT1. 0 reviews. 人 正在查看此內容. 14 件過去 19 小時內售出. $1,888.00 HKD. 預購. 主石尺寸: 0.60CT以下. 0.60CT以下. 含 1.13 克拉 E SI1 實驗室培育鑽石.

  5. 2019年10月26日 · 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”,或は準備入手一條“天女”。 何を為すかは「天女」? 不過您真的承知“天女”嗎? 日本真珠綜合研究所と ...

  6. 2022年6月10日 · 1. IGI 鑽石鑑定書 IGI 國際寶石鑑定所,於1975年比利時安特衛普成立,這是國際上歷史悠久的鑽石切磨和貿易中心。 該實驗室率先鑽石鑑定過程中進行了多項創新,並培訓了許多世界頂級寶石學家。IGI 為鑑定實驗室培育鑽石最通用的機構之一,他們的證書詳細介紹了每顆鑽石的關鍵特徵,主要 ...