Asscher diamonds are similar to emerald cuts, with the large table and step cut facets. Well cut asschers have larger step facets, a smaller table, and a higher crown than emerald diamonds, which produces slightly more brilliance. These stones appear as beautiful layers of diamond squares when you viewed from above.
As a result of their open appearance, asscher at diamonds tend to show more color and clarity flaws than brilliant cut stones. Therefore, HYSTR recommends choosing an asscher stone that is at least one color and two clarities better than a corresponding round diamond. Because asscher stones arc less popular than round, princess and cushion stones, they often cost lower per carat than these shapes.
The following tables provide additional guidance for understanding the cut, color, and clarity of asscher stones.
ASSCHER DIAMOND CUT GUIDE
| EXCELLENT | VERY GOOD | GOOD | FAIR / POOR | |
| Table % | 60 - 68 | 57 - 59.9 or 68.1 - 72 |
53 - 56.9 or 72.1 - 75 |
< 52.9 or > 75.1 |
| Depth % | 60 - 67 | 58 - 59.9 or 67.1 - 71 |
53 - 57.9 or 71.1 - 75 |
< 52.9 or > 75.1 |
| Length / Width Ratio | 1.00 - 1.03 | 1.04 - 1.05 | > 1.06 | |
| Girdle | Very Thin - Slightly Thick | Very Thin to Thick | Very Thin to Very Thick or Ex. Thin to Ex. Thick | |
| Culet | None | Very Small | Small | > Medium |
OUR GIA GEMOLOGIST RECOMMENDS
The cut of a radiant diamond will impact the sparkle and size appearance of the stone. Most diamond grading labs do not provide cut ratings, so use this table as a reference to determine how your stone will sparkle.
ASSCHER DIAMOND CLARITY GUIDE
| EXCELLENT | VERY GOOD | GOOD (Eye Clean) |
FAIR / POOR (Not Eye Clean) |
|
| < .50 Carats | FL - VS2 | VS2 - SI1 | SI2 | > I1 |
| .51 - 1.20 Carats | FL - VS1 | VS2 - SI1 | SI1 | > SI2 |
| 1.21 - 2.00 Carats | FL - VS1 | VS2 - SI1 | SI1 | > SI2 |
| > 2.00 Carats | FL - VVS2 | VS1 - VS2 | VS2 | > SI1 |
OUR GIA GEMOLOGIST RECOMMENDS
Asscher diamonds are less forgiving of small clarity flaws. A diamond that is a mid-range clarity, but still 100% eye-clean, represents the best value.
Our gemologist recommends that clients purchase a stone with VS1-SI1 clarity. The inclusions in these stones will only be visible under magnification.
ASSCHER DIAMOND COLOR GUIDE
| EXCELLENT | VERY GOOD | GOOD (Looks White) |
FAIR / POOR (Color is Eye-Visible) |
|
| < .50 Carats | D - G | H - I | J | > J |
| .51 - 1.20 Carats | D - G | H | I | > I |
| 1.21 - 2.00 Carats | D - G | H | I | > I |
| > 2.00 Carats | D - F | G - H | I | > I |
| Fluorescence | None - Faint | Medium | Strong to Very Strong | |
OUR GIA GEMOLOGIST RECOMMENDS
Asscher diamonds show more visible color than many other shapes. A diamond that is a mid-range color, but still appears white, represents the best value.
Our gemologist recommends that clients purchase a stone with G - H color. The color in these stones will be difficult to detect with an untrained eye.
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