Table Size: 53% to 57% of the diameter
Total Depth: 58% to 63% of diameter
Crown Angle: 34 to 35.5 degrees
Pavilion Depth: 42.5% to 43.5%
Girdle Thickness: medium to slightly thick
Culet: pointed, very small to small ...
Table Size: is calculated as a percentage of the gemstone's total width. The table is described as small if its size is under 33%; acceptable if it is 33-67%; and large if it is above 67%
Small table
Preferred table ...
Table Size
The Table Size is the width of the Table Facet against the Diameter of the Diamond (average after measuring a couple of different sides).
Crown Angle ...
Table Size - The size of the table of a fashioned diamond, expressed as a percentage of the stone's narrow-girdle diameter, is a dimension used in proportion analysis.
Table size - Most jewelers agree the table should be between 53% and 67% of the girdle diameter. A table percentage too large or small greatly effects sparkle.
Table percentage - The diameter of the gemstone divided by the size of the table.
Table size = 60 %
Table size = 65 %
Fig 212 Table comparison method: The outline. of the table edge informs about approx. table size ...
1. Table size
2. Crown height and angle (angle of the bezel facets with the girdle)
3. Pavilion depth and angle (angle of the pavilion facets with the girdle)
4. Girdle thickness
5. Culet size ...
Crystals of suitable size and transparency have been fashioned into gemstones, usually featuring the brilliant cut to best display sphalerite's high dispersion of 0.156 (B-G interval)-over three times that of diamond.
The most important factors experts look at are table size, crown angle (measured in degrees), girdle thickness, pavilion depth (as a percentage of the total depth) and total depth.
What's the best cut?
To simplify this step and to aid repetition you could make a paper bead template to draw around or if the paper is of a suitable size use a computer, a graphics package, and a printer to print the layout on to the paper.
No "scientific" emeralds of marketable size have ever been produced as far as can be learned.
The Ideal cut diamond is designed to maximize brilliance, and with the typically smaller table size these diamonds have the added benefit of creating a great deal of dispersion or 'fire' as well.
Mostly the brass metal bracelets consist embossed detailing, adjustable size without any clasp are quite trendy. Many different coloured stones are also set in the center of the metal bracelet in some pattern.
The angle measured between the girdle plane and the bezel facets. Along with table size the crown angle helps determine the amount of dispersion displayed by the diamond.
Crown Height
The part of the diamond above the girdle.
The diamond below will weigh more because of the shallow crown, and exaggerated table size. Not to mention, that another diamond of shallow proportions could be cut from the remaining crystal.
Proportion: Measurements that include depth percentage, table size, girdle thickness and ratio to determine what grade to give the cut of the diamond.
An Ideal cut has a specific set of guidelines defining the proportions that give a diamond the highest level of fire and brilliance. It takes into account the relationship between the table size, crown angle, pavilion angle, girdle, ...
More than any other feature, proportions determine a diamond's optical properties. Studies have shown that table size, crown angle, and pavilion depth have a dramatic effect on a diamond's appearance.
A Measurement is a way to recognize size (this could be the thickness, length, widtch or diameter of an item, for example) often used for body jewellery. This ensures that the most comfortable size of jewellery is chosen for your individual ...
table gauge This is a small transparent plastic ruler in increments of tenths of a millimeter (0.1 mm) for the purpose of measuring the table size under magnification.
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The cuts are typically oval to cushion shaped with windows, low crowns and bellied pavilions. The "make" (proportions and finish) is "inferior" in that the table sizes, crown heights, pavilion depths, ...
Color may be more easily seen at the corners of the heart shape. The ideal depth for heart shapes is between 58 and 65.4% and the ideal table size is between 52 and 64%. The ideal length to width ratio for heart shapes is between .98 and 1.02.
Just a few degrees off the standard can have a drastic impact on a stone's brilliance. But there is some leeway. Cutters can compensate by adjusting crown angles, table sizes and pavilion angles to produce the best possible results for each stone.
* Manufacturers include Bowman, Donruss/Playoff, Fleer, Topps, and Upper Deck
* Professional advice on buying, selling, caring for, and storing cards
* Portable size to use at home or on the road
* Unique check boxes to mark off cards as you collect ...
 See also: Table, Size, Cut, Diamond, Color
  
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