|Snow - designed by Jack Rowland|
|Angles for R.I. = 1.54||43 facets + 12 facets on girdle = 55|
|6-fold, mirror-image symmetry||96 index|
|L/W = 1.073 T/W = 0.513 T/L = 0.478||P/W = 0.446 C/W = 0.177|
|H/W = (P+C)/W+0.02 = 0.644||P/H = 0.694 C/H = 0.275|
|Vol./W^3 = 0.231|
|C||42.00||02-14-18-30-34-46-50-62-66-78-82-94||Cut to center point|
|G||90.00||02-14-18-30-34-46-50-62-66-78-82-94||Level the girdle|
|B||39.00||02-14-18-30-34-46-50-62-66-78-82-94||Leave some girdle|
|T||00.00||Table||Cut & polish table to 60% width|
|S||29.00||02-14-18-30-34-46-50-62-66-78-82-94||Cut to equal width of B|
|M||34.00||96-16-32-48-64-80||Cut to 1/2 of B|
I'm a big believer in less is better. Snow was one of my early GemCad designs created in May of 1994. At the time I was working to develope the Heresy series of gem cuts. The hallmark of the heresy series is that the pavilion acts as a simple reflector and the crown does all the optical work. Snow is so named because the crown reminded me of the paper snow flakes we used to cut out of folded paper as a kid.
This is a very easy cut to execute, but difficult to cut matched pairs. The reason is that it is not a meet point cut. The most difficult part of the cut is polishing the large pavilion facets. Simply cut all the pavilion facets to a common center point, level the girdle on the same indexes, and polish. The pavilion is finished!
Next cut the Break facets, again at the same indexes. I transfer the stone to the 45 degree dop, cut and polish the tableto 60% the width of the stone, then go back and cut the Star and Main facets. The Star facets are cut at the same indexes as the rest. Watch out when you cut the Mains, they are the only different one! If you prefer to cut the star facets before the table go ahead. I only do the table first because it is easier to match up the size of the Break and Star facets. The Star facets are dropped in so they reach half way to the girdle on the Break facets. If the facets don't duplicate the cut exactly, don't worry. The stone will be beautiful anyway. This cut allows you the freedom to not worry so much about those pesky meet points, and really cut a stone!
Lots of facets are not really needed to get lots of flash. Give this one a try and see!
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© Bob's Rock Shop Bob Keller