Online Faceting Designs & Diagrams: Button

Button by Jeff R. Graham

Button - designed by Jeff R. Graham jeff@faceters.com ©2000
Angles for R.I. = 1.62	65 facets + 16 facets on girdle = 81
8-fold, mirror-image symmetry	96 index
L/W = 1.000 T/W = 0.407 T/L = 0.407 P/W = 0.409 C/W = 0.253	H/W = (P+C)/W+0.02 = 0.682 P/H = 0.600 C/H = 0.371
Vol./W^3 = 0.247	Brightness at 0 degrees tilt for R.I. = 1.62 84.2% Light Return

Pavilion
P1	40.50	03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93	Cut to center point.
P2(G)	90.00	03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93	Cut a level girdle, meet P1.
P3	39.30	96-12-24-36-48-60-72-84	Cut to meet girdle.

Crown
C1	60.00	03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93	Cut to meet girdle.
C2	48.00	06-18-30-42-54-66-78-90	Cut to meet girdle.
C3	32.00	96-12-24-36-48-60-72-84	Cut to meet C1.
C4	24.00	06-18-30-42-54-66-78-90	Cut to meet C2.
T	0.00	Table	Cut to meet C3,C4.

Button - Cutting Remarks

Shown at left is a 12mm x 6.06 mm deep ~ 7.06 carat "Button" cut from flawless Nigerian peach Tourmaline by Jeff Graham.

I recently found a container of old shell and mother of pearl buttons from the 1920’s. Some of these buttons were hand faceted and had interesting dome shapes, which I though would be nice reproduced in a gemstone design. Here is the “Button” I came up with... This design is a simple one to cut, basically a round brilliant variation that has a very high light return. I prefer it in a larger size, (8mm+) and in light color material. It has very nice sparkle and will deepen the color of light material quite a bit.

Enjoy cutting your "Button"... Drop me an email to let me know your results and what you've cut, or feel free to inquire if you have any questions or need some help regarding this design.

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