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  2. 2019年10月26日 · 10分鐘讓你全面了解akoya天女珍珠(附珍珠賣家騙術揭露). October 26, 2019. In News 0 comments. 近年來日本akoya珍珠風靡全國,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,豐富的色彩,素有“小燈泡”的美譽,代表了東方女性 ...

  3. 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 ...

  4. 2022年5月30日 · 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。 第二種稱為化學氣相沉積或 CVD 的方法涉及“將富含碳的氣體(如甲烷)的分子分解成碳和氫原子,然後將它們沉積在金剛石晶種上,以產生方形的板狀金剛石晶體 ”根據 GIA 官方教育網站。 與在地表深處需要數十億年才能形成的天然鑽石相比,實驗室製造的鑽石可能需要一個月左右的時間就能製成。 僅此事實就吸引了買家(您),因為他們通常會發現自然過程更加獨特,因此願意在其上花更多的錢。

    • 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...

  5. 2019年10月26日 · 日本真珠科學研究所所長小松博2001年發現,지금珍珠專用鑑determined 儀器的觀測下,可以看到에서 優質akoya珍珠下半球會現3種干涉color,即“極光效應”。 具備了“極光效應”的akoya珍珠且直徑에서 6mm以上的,即命name為“極光效應”,一般簡稱為“천녀”. 關於珠層: 천녀의 標準為0.4mm,0.4mm以下는 不可評層為天女입니다. 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。 然而事實並不如此。 珠層並不越厚光澤越好,珠層厚島與光澤、瑕疵沒有直接聯繫。 決定珍珠光澤 는 是珍珠質單層結晶層 의 간격을 두고 排列疊加是否平整緊密.

  6. 2019年6月26日 · 門市及營業時間: 【九龍】 尖沙咀厚福街3號華博商業大廈2樓206舖(肥仔小食旁入)地鐵站B2出口. https://goo.gl/maps/6VWVk8p6dzbMvTRp6. 【香港】 銅鑼灣怡和街22號20樓01室 (位於CSL旁巷仔進入または位渣甸街文輝墨丸直走找換店旁入口)地鐵F1出口. https://goo.gl/maps/3aN9qy8t9tD2.

  7. 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 ...

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