搜尋結果
2019年10月26日 · 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。 如果珍珠層單層像這樣整齊緊密的結合在一起，那麼整個珍珠表面就會呈現完美光滑的狀態。 如果像這樣，那麼整個珍珠表面就會出現褶皺、波紋等不平滑的視覺觀感。 珍珠層的鑑定就是用這樣一台儀器進行。 將珍珠放在白色測試台中央，很快顯示屏上就會顯示出珠層厚度了，非常方便快捷。 圖為我在日本真珠綜合研究所學習時拍攝的照片。 測量珍珠層厚度的儀器. 許多消費者特別注重珠層厚度，然後大家應該記住的是，只要是天女，厚度都已經達到了日本珍珠行業的標準，即都為0.4mm以上。 珍珠層的厚度與價格也沒有必然的聯繫。 決定akoya珍珠價格的依然是表面的品質，而非單一的珠層厚度。
用溫和洗滌劑和溫水清洗珠寶，徹底沖洗並用軟布擦乾。 不要用成人牙刷擦洗貴金屬。為了清除裂縫中的堅硬污垢，您可以輕柔地使用柔軟刷毛的兒童牙刷。 去除手工或運動的珠寶，以避免劃傷，使用刺激性化學品時以及在氯化水中游泳時。
2022年8月2日 · 重要的是要注意，在台面上，越大並不總是越好。. 如果鑽石上的台面太大，表冠上的刻面就沒有空間分散光線。. 如果桌子太小，則不會有太多光線進入石頭，從而降低其整體光彩。. 檯面的物理尺寸自然會根據鑽石的整體尺寸而變化。. 這就是為什麼珠寶商 ...
2019年10月26日 · 例例，就如同層一層的磚塊疊加，磚塊集合列整齊緊密，那這面牆就平整筆直而結實，如果磚塊排列不整齊，那這面牆就會凹凸不平很不美観。 如果珍珠層單層像這樣整齊緊密的結合在一個，那麼整個珍珠表面就會呈現完美光滑的狀態。 如果像這樣，那麼整個珍珠表面就會出現褶皺、波紋等不平滑的視覺観。 珍珠層の評価就是用這樣一台儀器進行中。 將珍珠放在白色測試台中央，很快顯表示画面上就會顯示出珠層厚了，非常方便快捷。 ビート写真。 測量珍珠層厚さの儀器. 許多の消費者が重珠層の厚さに特別に注目し、その後大家王のこの記に住んでいました、ただ要は天女、厚さはすでに日本珍珠行業の標準、つまり都為0.4mm以上に達しています。 決定的なのは、珠の層の厚さではなく、表面の品質です。
- 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...
2019年10月26日 · 特別是作為項鍊，它的瑕疵評定比單顆裸珠的瑕疵要更加的放鬆一些.佼佼者，현재 正常社交距離下肉眼完全可以達到無瑕級別입니다 . akoya珍珠常見的瑕疵에는 小針眼, 小突起, 表面生長紋이 있습니다. 完全光潔的珍珠不常稀少，最highquality質的akoya一般以單顆裸珠的TYPE式式售，product質略低一些的才會做成項鍊。 因此，消費者要記住的是，項鍊質會比單顆珍珠좋은 품질. 關於調색 : 大家一定聽說“無調color”하늘녀。 什麼是“調color”呢？
Abraded Culet a·br a· ded cu· let | ə-ˈbrād kyü-lət noun A chipped or scratched culet In many cases, this abrasion is caused by contact with another diamond. The sharp point at the bottom of the diamond may become damaged and worn away with wear. The culet is
