How to choose a diamond
Through our search engine ( DIAMONDS in stock ) , You can use the carats of diamonds (Carat) Size, Budget amount (Price), color (Color) , clarity (Clarity), and cut (Cut) Parametric search the right diamond. When you choose the right diamond can leave contact information for future appointments of appreciation.
You can make an appointment in person to our company, to test the diamond of your choice. We recommend that you first elect roughly 2 to 3 tablets a few diamonds, in order to make the comparison.
(You do not need to schedule a meeting and test drilling to pay any costs)
如何挑選鑽石
透過我們的搜尋引擎 (鑽石存貨)，可以用鑽石的克拉 (Carat) 大小、 預算金額 (Price)、顏色 (Color) 、淨度 (Clarity)、切工 (Cut) 等等參數搜尋心儀的鑽石。當選出心儀的鑽石後可以留下聯繫方式用於日後預約鑑賞之用。
閣下可以預約一個時間親自到本公司，對您所選的鑽石進行檢驗。 我們建議您先選出大概2至3粒心儀的鑽石，以便作出比較。
(閣下並不需要為預約見面和驗鑽繳交任何費用)
How to choose a diamonds 如何選擇鑽石
How to read GIA grading report 如何閱讀一份GIA鑒定證書
鑽石的色澤
鑽石的色澤會因為化學上的雜質而有所偏差。完全純正的鑽石應該是透明無色的。鑽石偏向不同的顏色會影響它的價值。絕大部分的鑽石都是因為帶有氮原子而偏黃。白鑽越偏黃，價值便越低。但是偏粉紅或藍的鑽石價格卻較高。顏色強烈偏向粉紅或藍的鑽石可能是價值連城。一般的方法是把鑽石按偏黃的程度分為不同的等級，把樣品與已知色級的比色石對比確定，以D級最高，Z最低。
Diamond color
Diamond color will be biased because of chemical impurities. Perfectly pure diamonds should be clear and colorless. Diamond preferred a different color can affect its value. Most diamonds are yellow with a nitrogen atom. Yellow white diamonds, lower the value. But the pink or Blue diamond prices high. Color strongly favor pink or blue diamonds may be invaluable. Common technique is to put diamonds in yellow are divided into different levels, color samples with a known color grade stone compared to determine, to D highest level, Z minimum.
淨度（Clarity）
淨度（Clarity）以鑽石內的瑕疵多少決定。瑕疵可能是天然的雜質或裂痕。瑕疵的數量、位置、大小等都會影響評級。鑽石礦開採出來的金剛石中，只有20%可以成為寶石，其餘的因為瑕疵較多通常只能作工業用途。而20%~40%的寶石級鑽石中，大部分都包含肉眼可見的瑕疵。在此級別以上的鑽石較為大眾喜愛。至於屬完美級別的鑽石更為罕有，被稱為「博物館級」鑽石。通常使用10倍放大鏡觀察鑽石內部及表面瑕疵的大小、數量、分佈及對鑽石光彩影響的程度，分出等級。
目前世界各國流行的鑽石淨度分級體系見下表。分級時主要依據鑽石內部及外表瑕疵，它們在國際上有統一的名稱、標誌及顏色。外部瑕疵統一用綠色筆劃表示，主要有磨蝕、多餘刻面、原晶面、傷痕、小白點、磨痕、磨痕疤等。內部瑕疵特徵統一用紅色筆劃表示，主要有毛邊、碎傷、破洞、缺口、雲狀物、羽狀裂紋、結晶包體、內部生長線等。
Clarity
Clarity ( Clarity ) To Diamond flaws in how much. Defects may be the natural impurities or cracks. The number, location and size of defects will affect the rating. Diamond mines in mined diamond, only the 20% can be a gem, the rest because the flaw more usually used for industrial purposes. 20%~40% of gem-quality diamonds, most of them containing visible defects. More diamonds are popular at this level. Is a perfect grade of diamonds are more rare, is called "Museum-quality" diamonds. Typically uses 10 times the Magnifier diamond internal and surface defects of size, quantity, distribution and degree of influence on the diamond luster, separate grades.
The world popular diamond clarity grading system, see table below. When grading diamonds based primarily internal and external defects, internationally, they have a unified name, logo and colors. External defects green strokes for unification said there are abrasive, extra facet, wear marks, scars, small white spots, polish mark, and so on. Internal defects characteristic uniform with red strokes, there are edges, Bruise, holes, gaps, cloud, feather, crystalline inclusions, internal growth lines and so on.
切割及形狀 (Cut)
未經切割打磨的鑽石並沒有耀燦生輝的光芒。切割的功用是把鑽石割成可以儘量增加光線反射的形狀。鑽石的切磨也因刻面的形狀、數量及其排列方式的不同，而有不一樣的型式，例如：明亮式「BRILLIANT」、階梯式「STEP」、混合式「MIXED」…………..等等。1919年數學家Marcel Tolkowsky發明瞭一種切割方法，能令鑽石在上方看來最為生輝。這種切割方法被稱為圓多面型也就是圓形明亮式（Round Brilliant），亦即最為常見的圓形鑽石。這種鑽石一般標準是有五十七個面或五十八個面，三十三面在冠部，二十四個面或二十五個面（即在底尖處再磨一個面）在腰以下。
判斷切割是否優良，要看鑽石的各種比例，各面是否對稱，各種角度等等。有時鑽石的切割角度相差數度，便會造成截然不同的效果。切割完的鑽石，往往只有原石的一半重量。為了在鑽石保留最多的重量，或者要避開原石上的雜質，有些鑽石切割時會犧牲完美的切割比例。
切工 (以常見的圓型明亮切割為例） 所謂鑽石的切工（Cut），主要指切磨鑽石的形狀和款式、比例和修飾度。為了最大限度地體現鑽石的美，按理想的比例並精確加工十分重要。鑽石的各個部分都要求有一定的比例。在GIA 的切工評級中，共分為五級： 1. 極優（EXCELLENT） 2. 優良（VERY GOOD） 3. 良好（GOOD） 4. 尚可（FAIR） 5. 不良（POOR）。
Cut and shape (Cut)
Without cutting polishing diamonds did not shine bright sun light. Function of cutting is to maximise the light reflecting off diamonds cut into shapes. Diamond cut faceted shape, number and arrangement of the different, and there is not the same type, such as the brilliant "BRILLIANT", ladder-type "STEP", hybrid "MIXED".............. And so on. 1919 year mathematician Marcel Tolkowsky invented a cutting method, can make the diamond at the top of the most brilliant. This cutting method is called the round brilliant is round brilliant (Round Brilliant), that is the most common round diamonds. The diamond standard is 57 or 58, 33 in Crown, 24 or 25 surface (that is, at the end of tip wear one) at the waist.
Determine whether cutting fine, depends on diamond's proportions, symmetry, all angles and so on. Diamond cutting angle sometimes differ on several occasions, it will cause different effects. Cut out diamond, often only half the weight of the original stone. Diamonds in order to retain the most weight or to avoid impurities on the original stone, some diamond-cutting sacrifice when the perfect cut.
Cut ( Common round brilliant cut, for example) the so-called Diamond Cut (Cut), mainly refers to the shape and style of cut and polished diamonds, scale and trim levels. In order to maximize the beauty of diamonds, according to ideal proportions and exact processing is very important. All parts are required to have a certain proportion of the diamonds. GIA 's cut ratings, is divided into five levels: 1. Very high ( EXCELLENT ) 2. good (VERY GOOD) 3. Good ( GOOD ) 4. fair (FAIR) 5. Bad ( POOR )。
