Kelvin的Blog記事本

資料來源：Build Your Own Ring

這個網站很cool可以自由配，選擇喜歡的鑽石、戒台，然後組成鑽戒，什麼樣等級的鑽石價格一目了然，更棒的事還可以直送台灣，整天都跟女朋友膩在一起的人有福了，你不用處心積慮的偷溜去買，上網點點就可以了，只要你信用額度夠大，要買多大都有得挑。

鑽石教學第一C:Cut

Too Shallow: Light is lost out the bottom causing the diamond to lose brilliance.

Too Deep: Light escapes out the sides causing the diamond to appear dark and dull.

Diameter: The width of the diamond as measured through the girdle

Table: The largest facet of a gemstone

Crown: The top portion of a diamond extending from the girdle to the table.

Girdle: The intersection of the crown and pavilion which defines the perimeter of the diamond

 鑽石教學第三C:Clarity

FL, IF Flawless, Internally Flawless: No internal or external flaws. Internally Flawless: No internal flaws. Very rare and beautiful diamonds. VVS1, VVS2 Very, Very Slightly Included: Very difficult to see inclusions under 10x magnification. An excellent quality diamond. VS1, VS2 Very Slightly Included: Inclusions are not typically visible to the unaided eye. Less expensive than the VVS1 or VVS2 grades. SI1, SI2 Slightly Included: Inclusions are visible under 10x magnification, and may be visible with the unaided eye. A good diamond value. I1, I2, I3 Included: Blue Nile does not carry diamonds of I-grade clarity.

We are frequently asked questions about what other people are shopping for when it comes to diamonds. The following chart represents what other Blue Nile customers have bought over the last year. Try setting your cut, carat and price ranges to see how other people have chosen their diamonds.

鑽石教學第三C:Carat

這顆是5carat

Pavilion: The bottom portion of a diamond, extending from the girdle to the culet

Culet: The facet at the tip of a gemstone. The preferred culet is not visible with the unaided eye (graded "none" or "small").

Depth: The height of a gemstone measured from the culet to the table

 鑽石教學第二C:Color

D	Absolutely colorless. The highest color grade, which is extremely rare.
E	Colorless. Only minute traces of color can be detected by an expert gemologist. A rare diamond.
F	Colorless. Slight color detected by an expert gemologist, but still considered a "colorless" grade. A high-quality diamond.
G-H	Near-colorless. Color noticeable when compared to diamonds of better grades, but these grades offer excellent value.
I-J	Near-colorless. Color slightly detectable. An excellent value.
K-M	Noticeable color. Not carried by Blue Nile.
N-Z	Noticeable color. Not carried by Blue Nile.

The table below compares the prices of diamonds with the same clarity grade (VS1) and carat weight, but varying color grades.

Colorless D           E            F   Near-Colorless G           H           I           J Ideal   $8,000 $7,600 $7,200   $6,800 $6,000 $5,200 $4,300 Very Good   $7,500 $7,200 $6,900   $6,200 $5,600 $4,700 $4,200 Good   $7,200 $6,800 $6,700   $6,000 $5,200 $4,600 $4,000 Fair   $7,000 $6,700 $6,600   $5,200 $4,700 $4,200 $3,700