Lapidary Journal: Gems, Beads, Jewelry Making and more

Penalty Box Cut
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What You Need (for this project)

• Red corundum (shown) (Quartz P5 = 41°)
• Angles for R.I. = 1.76
• 65 facets + 8 facets on girdle = 73
• 4-fold, mirror-image symmetry
• 96 index
• L/W = 1.000
• T/W = 0.384
• T/L = 0.384
• P/W = 0.387
• C/W = 0.146
• H/W = (P+C)/ (W+0.02) = 0.553
• P/H = 0.700
• C/H = 0.263
• Vol./W3 = 0.147

Abbreviations
C = crown; L = length;
H = height; P = pavilion;
T = table; W = width

For information on supplies, please see the Annual Buyers' Directory.
Always ask for the MSDS (Material Safety Data Sheet) for any materials you buy, which will give you reactivity, health hazard, and safe handling data.
Penalty Box

Beginner-to-intermediate project

Because when I play hockey I visit that part of the rink more often than I would like (I don’t recommend calling it home), I wanted to create a pendant to help ward off any evil “penalty box” spirits, and this is the design I came up with for the stone. I’m a student and don’t get a lot of time for faceting, but my uncle, Jerry Capps, is a facetor and he helped me complete the design (I was even able to get him to cut the stone for me). He also recommended that I try GemCad to help execute my design idea, and I did. [See “Virtual Faceting,” January, 2002, by Jerry Capps for more on GemCad.]

The Penalty Box is the result of my first effort using GemCad. There is no guarantee of any magic from this cut, but using red, orange, lavender, or any light-colored corundum produces a dazzler, both face up and tilted as shown mounted in the pendant. With 65 facets, the cut requires a little more faceting effort than the standard round brilliant.

Sequenced visual aids are included for a better understanding of progressive cutting at periodic intervals. I hope you enjoy this design as much as I enjoyed getting introduced to GemCad.

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