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關於COVID-19的抗流行病小貼士. 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：. 我應該先摘下口罩還是回家時先洗手？. 如果年長者有抽血或接受診所預約，他/她應該參加嗎？. 在近期爆發期間，許多人對感染控制持謹慎 ...
4C的存在. Roselle Jewelry®的RZ®人造鑽石肉眼是完全與天然鑽石100%無差別，以鑽石相等的4C (顏色，切割，對稱，拋光）製作生產。 與坊間的CZ（香港、澳門稱為蘇聯石。 中國大陸稱為高碳鑽，SONA鑽，鍍膜鑽）對比火彩更為突出及更與鑽石像真-一般較差的CZ會以十心十箭或十六心十六箭等切割作為招徠. 與莫桑石對比，RZ®人造鑽石以天然鑽石相等的4C製作生產。 與莫桑石的雙折射材質不一樣。 所以通透度比莫桑石更為高更與鑽石像真。 RZ®人造鑽石的OEM（ORIGINAL DESIGN MANUFACTURER） RZ®人造鑽石從2015年開始以最完美的RZ寶石並保證肉眼100%與鑽石相符的因素開始外銷歐美等國家。
2022年9月27日 · 近年越來越多珠寶商改用實驗室培育鑽石，認為可減少使用與不道德生產方法有關的原材料；同時認為可降低生產成本，使更多消費者能夠購買到鑽石珠寶。 而根據安特衛普世界鑽石中心（Antwerp World Diamond Centre and Bain）的研究報告指出，實驗室培育鑽石市場目前正在迅速增長，尤其是年輕客戶特別熱衷於尋找可持續珠寶品牌。 兩者外觀上有何分別？ 兩者不同只可由鑒定機構專業技術設備偵測，但肉眼難以分辨。 與天然鑽石有何不同？ 兩者都是純碳打造，擁有一樣的光學特性，但培育鑽石可被無限制地創造，天然鑽石的形成則需要千年以上。 兩者價格有何分別？ 天然鑽石的價格由每顆鑽石獨特的特徵和稀少性所決定，但人造鑽石則可大量生產，故價格比相同尺寸與品質的天然鑽石低很多。
Back to Search. 六爪扭臂單石鑽石訂婚戒指【淨戒托】 - KNT17. $2,688.00 HKD. 金屬材質: 9K White Gold. 適用形狀: Round. 戒指款式: Solitaire. 選擇這個戒托. Order now and your order ships by (Pre Order Products) - Monday July 8th. Description.
- 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...
2024年5月TVB節目《財經透視》訪問。. 通過 WaiJacob 上 2024年5月27日. 在最近接受 TVB 採訪時，店主 Jacob 討論了實驗室培育鑽石和天然鑽石的未來發展趨勢。. 讓我們深入探討一下訪談的要點。. 實驗室培育鑽石與天然鑽石 實驗室培育的鑽石是在受控環境中使用先進 ...
近期爆発期間中、許多人對感染制御持謹慎謹慎。謠言在社會上流傳。香港大學護理學院的一群師生希望幫助公眾將事實與小說一區分開。 視頻下載： http : //bit.ly/3bfqN5j 【抗流行病小貼士問答第二集】 洗澡/孤独浴時その打開排氣扇嗎?回家後我的夾克怎麼辦?
