Rahl Jewelers: Diamonds in Hoffman Estates, IL
When a round brilliant diamond has been cut to "Ideal" proportions by a master cutter, it is a splendor to behold.
The Ideal Cut Diamond describes a round brilliant diamond that has been cut to exact and mathematically proven proportions. It's symmetry, with 58 exactly placed facets, produces the ultimate in lustre and beauty.
When a diamond is cut to the ideal proportions, all of the light entering from any direction is totally reflected through the top and is dispersed into a display of sparkling flashes and rainbow colors.
A Premium Cut diamond demonstrates subtle variations from the Ideal Cut. Although dimensional differences affect a diamond's reflection of light, a Premium Cut still achieves a harmonious balance between it's proportions and the display of brilliance.
Most diamonds are "spread" in their cutting to retain maximum weight from the original rough. A heavier diamond will result, but at a dramatic sacrifice of potential fire and brilliance.
When a diamond is cut too shallow, light leaks out of the bottom, brilliance is lost and the diamond appears watery, glassy and dark.
When a diamond is cut too deep, light leaks out of the bottom, brilliance is lost and the center of the diamond will appear to be dark.
Most diamonds, although appearing colorless, actually have slight tones of yellow or brown. As these tones become more easily apparent, the rarity and the cost decrease.
Ideal cutting dramatizes the rare splendor of a diamond because it produces such dazzling brilliance.
|Colorless||Near Colorless||Faint Yellow||Very Light Yellow||Light Yellow|
Very Light Yellow
Practically all diamonds contain naturally occurring internal characteristics called inclusions. The size, nature, location and amount of inclusions determine a diamond's clarity grade and affect its cost.
One unique advantage of the Ideal Cut is that its sparkle can mask otherwise noticeable inclusions.
FL - IF: No inclusions visible (by an expert) under 10x magnification.
(FL = Flawless, IF = Internally Flawless)
VVS1 - VVS2: Minute - extremely difficult to find under 10x.
(VVS = Very, very slight inclusions.)
VS1 - VS2: Minor - difficult to find under 10x.
(VS = Very slight inclusions)
SI1 - SI2: Noticeable, relatively easy to find under 10x.
(SI = Small inclusions)
I1 - I2: Obvious under 10x - Just visible to the naked eye.
(I1 = Imperfect)
The weight of a diamond is measured in carats. One carat is divided into 100 parts called "points", 1 ct. = 1.00; 1/2 ct. = 0.50. The value of two diamonds of the same weight can vary greatly depending on the color, clarity and especially the cut. Below are two identical pieces of rough, (uncut diamonds) each of the same quality and value.
Through these examples one can see that the value of a diamond can vary as much as 40% in the cutting alone.
From one piece of rough a diamond has been cut to ideal proportions, retaining a weight of one carat. The light is totally reflected through the top.
The second piece has been "spread" in its cutting, resulting in a diamond weighing approximately 1.40 ct. Note: The girdle is thicker, the table is much larger, the angles are exaggerated, all at the expense of that diamond's ability to reflect light.