搜尋結果
2024年5月27日 · 從下面這張簡單的圖片可以看出常見的車工陷阱，第一顆鑽石是經典的狀況，底部加深可以偷偷增加鑽石克拉數，讓鑽石售價更高，但卻因底部過深，光線由側面漏出，無法聚集火光，使得鑽石光彩相形黯淡。 而第三顆鑽石則是為了讓相同克拉數之下「桌面」更大，乍看鑽石更大顆，但深度不足，光線無法達到良好的折射效果，也嚴重減損鑽石的火光與價值。 完美車工的火光更耀眼. 好的車工是什麼？ 關於鑽石車工常見的名詞有三種：完美車工鑽石、八心八箭鑽石、3EX鑽石. 完美車工鑽石是什麼？ 數學家Marcel Tolkowsky 在1919年研究出圓形鑽石的完美車工比例，在腰圍直徑、台寬比、全深等數值都在完美車工範圍內的話，鑽石可以綻放最大的耀眼光彩。
- 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...
2021年7月27日 · 很多時候，Roselle Jewelry派送的優惠碼，顧客往往會不知在哪個位置使用。. 今次Roselle Jewelry會一步一步帶領您正確的優惠碼使用順序。. 1.首先把想要的產品加入購物車，並點擊購物車 2.點擊查看購物車 3.進入購物車，您會發現有一個位置寫著"Discount Code"，輸入 ...
－保持良好的個人衛生和情緒以及正常的日常工作⠀－. 與家人和朋友聯繫以通過電話或即時消息應用程序，儘管您可能會遇到. 麻煩–必要時尋求專業幫助和指導⠀. 不要 ⠀－分享. 未經證實的信息，可能會引起他人和您自己的恐懼⠀－. －根據未經證實的信息做出不合理的決定和行為，例如購買過多的醫療用品，日用品和食物⠀－. 花費太多時間尋找有關流行病的信息，加劇了您的焦慮感－. 拒絕與家人和朋友分享您的想法和感受⠀. 【正確洗手的七個步驟】 洗手是阻止細菌從一個人傳播到另一個人的最有效方法之一。 看起來很簡單，但是，我們都真的知道如何正確洗手嗎？
2022年5月30日 · 那麼，有什麼大不了的呢？ 實驗室培育鑽石與天然鑽石有區別嗎？ 當然，有。 但你怎麼知道？ 數十年的研究和技術進步現在使這項艱鉅的任務變得更加容易，並且系統每天都在改進。 1. 天然地球開采的鑽石是如何形成的 鑽石的存在時間幾乎與地球一樣長。
2019年7月19日 · 18K金是一種常用於珠寶的合金，但9K金呢？ 這兩種金如何比較，它們之間有什麼區別？
關於COVID-19的抗流行病小貼士 – Roselle Jewelry. 在冠狀病毒爆發期間，護理學院提供了以下信息，以向公眾提供一些抗流行病小竅門： 【抗流行病小知識問答】 http. //bit.ly/3bfqN5j. 【抗疫迷思 你問我答】 COVID-19 • Get the latest information from the CDC about COVID-19. Watch on. 【抗流行病小貼士問答第二集】 http. //bit.ly/39gZx56. 【抗疫迷思 你問我答 Vol.2】 COVID-19 • Get the latest information from the CDC about COVID-19. Watch on. 【心理健康諮詢】
