雅虎香港 搜尋

搜尋結果

  1. 2019年10月26日 · 日本真珠科學研究所所長小松博在2001年發現,在珍珠專用鑑定儀器的觀測下,可以看到在優質akoya珍珠下半球會出現3種干涉色,即“極光效應”。 具備了“極光效應”的akoya珍珠且直徑在6mm以上的,即命名為“極光天女”,一般簡稱為“天女”。 關於珠層: 天女珠層的標準為0.4mm,0.4mm以下的不可評定為天女。 很多賣家宣稱,珍珠層越厚珍珠光澤越美,很多買家也深以為然。 然而事實並非如此。 珠層並非越厚光澤越好,珠層厚度與光澤、瑕疵沒有直接聯繫。 決定珍珠光澤的是珍珠質單層結晶層之間的排列疊加是否平整緊密。 舉個例子,就如同一層層的磚塊疊加,磚塊排列整齊緊密,那這面牆就平整筆直而且結實,如果磚塊排列不整齊,那這面牆就會凹凸不平很不美觀。

  2. 2019年10月26日 · 不過您真的承知“天女”嗎? 日本真珠綜合研究所とGIAの珠寶思用鑑定師Yoko來為您ソフト「天女」の個別側面。 天女項鏈. 關於天女,您要承知. 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“極光效王”。 具備“極光效王”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。

  3. 2019年10月26日 · 10分鐘讓你전체면了解akoya天女珍珠(附珍珠賣家騙術揭露) – Roselle Jewelry. 2019년 10월 26일. ~ 안에 소식 댓글 0개. 近年來日本akoya珍珠wind靡全國,無論網店還是實體店的珍珠消費者,無一不愛日本akoya珍珠。 akoya珍珠因其靚麗的光澤,豐富的color彩,素有“小燈泡”的美譽,代表了東方女性美. 作為當今珍珠資深玩가족의 "標配",絕大多數消費者一定擁有一條 "천녀", 或者準備入手一條 "천녀". 什麼是“천녀”? 작為akoya珍珠중고품질質的代表,“천녀”一詞可謂無人不知。 不過您真的了解“천녀”嗎? 日本真綜合研究所와 GIA의 珠寶應用鑑定師Yoko는 "天女"의 各個方face입니다. 천녀項鏈. 關於天女,您需要了解的.

    • 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. 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 ...

  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. 2019年6月26日 · 現在很多商家都只會網上發售,因為一有水平石對比的話基本上就看出分別。 定番用途の庭園石筆は容易に購入できるかもしれませんが、現在の最新の庭園石筆はすでに莫桑石および庭園石を分割することができます。 次の短片をご覧ください: 最左莫桑石,中間水平石,右渡辺RZ人造醸石. RZ人造ダイアン石在短片中與ブルゾン石看起來都是完全無单別的,只有使用ダイアン石筆的情況會分辨出來。 後記: 那是否要蓋著光去比較自己的仿権和我們的仿尖?火彩是要在等光線下對比、大家的折射閃爍度及び反火度的、沒有光線下是很難分辨、就像影片末關上燈後、很難看出雙方的分別、但是一走到商場。 /餐廳/酒店燈光下、帶慣天然ホルムアルデヒド石的、都會易分到一般仿兼真尖的分別。 主な理由は次のとおりです。