| Home | Rough | Equipment | Books | Online Designs | Just Ask Jeff | Order | News List | Contact Me | Links |
| Amethyst | Aquamarine | Beryl | Citrine | Emerald | Garnet | Opal | Peridot | Sapphire | Scapolite | Spinel | Sunstone | Synthetics | Topaz | Tourmaline | Quartz | Zircon |
| Bargains | Beginner's Page | Eclectic | New Stuff | Odds & Ends | Parcels | Specials |
| Cut Gemstones | Cutting Information | Pricing Guides | Buying Gemstones |
Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)
Tigers Tape (MIR1.JRG)
By Jeff R. Graham
Copyright 2004
91.2% Light Return
Angles for R.I. = 1.54
36 facets + 12 facets on girdle = 48
6-fold, mirror-image symmetry
96 index
L/W = 1.088 P/W = 0.441 C/W = 0.201 H/W = (P+C)/W+0.02 = 0.662
P/H = 0.666 C/H = 0.304
Vol./W^3 = 0.218Addition # 9 - Depending on the size of the P3, P4(G), you may need to adjust the C2 angle. This is a new design concept that is fast and easy to cut. These are made to be Money Cuts. Cut this in refractive index 1.54 to 2.14 with no changes.

Random - Cosine - ISO
| Home | Rough | Equipment | Books | Online Designs | Just Ask Jeff | Order | News List | Contact Me | Links |