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2022年6月10日 · 1. IGI 鑽石鑑定書. IGI 國際寶石鑑定所 ，於1975年在 比利時安特衛普 成立，這是國際上歷史悠久的鑽石切磨和貿易中心。 該實驗室率先在鑽石鑑定過程中進行了多項創新，並培訓了許多世界頂級寶石學家。 IGI 為鑑定實驗室培育鑽石最通用的機構之一，他們的證書詳細介紹了每顆鑽石的關鍵特徵，主要可分為以下種類。 IGI- 1克拉以上. IGI 培育鑽石鑑定書. IGI- 1卡/克拉以上 (附雷射刻字影像版) IGI 培育鑽石鑑定書. IGI- 1卡/克拉以下. IGI 培育鑽石鑑定書. IGI- 1卡/克拉以下 (附雷射刻字影像版) IGI 培育鑽石鑑定書. *證書編號將刻在鑽石腰圍上，以供查驗，見上述1.11 ct 培育鑽石腰圍雷射刻字編號。 2. GCAL 鑽石鑑定書.
2021年6月28日 · June 28, 2021. In News 0 comments. 題目＜鑽石漲價＞. 在疫情之下，鑽石這些奢侈品的價格仍見上升，近期就有兩間鑽石開採商加價一成。 其實在幾可亂真人造鑽石的競爭下，為何鑽石仍然漲價？ 是否市場資金氾濫，鑽石也成為抗通脹的投資產品呢？ 早前Roselle Jewelry受TVB《財經透視》節目訪問提供鑽石意見， 作為全港首間售賣培育鑽石及首間培育鑽石批發商，負責人是如何提供意見的呢？ 有興趣的讀者可以登入下面連結看足本版：
- 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...
2022年8月2日 · How To Find the Right Depth & Table. Ultimately, the depth and table of a diamond determine how well the stone reflects light. But how do you know what the ideal measurements are—and what do you do if your budget is limited? Don’t worry! The values for the depth and table are measured in percentages.
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） – Roselle Jewelry. 2019年10月26日. 在 新文章 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，代表了東方女性之美。 作為當今珍珠資深玩家的“標配”，絕大多數消費者一定擁有一條“天女”，或者準備入手一條“天女”。 什麼是“天女”？ 作為akoya珍珠中高品質的代表，“天女”一詞可謂無人不知。 不過您真的了解“天女”嗎？ 日本真珠綜合研究所和GIA的珠寶應用鑑定師Yoko來為您解答“天女”的各個方面。 天女項鏈. 關於天女，您需要了解的.
2022年8月2日 · 了解鑽石台面和深度 – Roselle Jewelry. 2022年8月2日. 在 新文章 0 comments. 讓我們仔細看看影響鑽石切工質量的兩個因素， 鑽石的台面和深度 。 它們都有助於定義鑽石的物理形狀並有助於其閃耀，創造出我們都喜歡的令人眼花繚亂的外觀。 當這兩個特徵比例恰到好處時， 任何尺寸的鑽石 看起來會很壯觀。 什麼是鑽石台面？ 您是否注意到幾乎每顆鑽石的頂部都有一個扁平的方形刻面？ 這個平面稱為台面，它對鑽石的外觀起著至關重要的作用。 當光線通過時，桌子會折射光線，將它們引導到使鑽石看起來如此閃亮的刻面 。 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。
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 ...
