Simple Heart
GemCad Ray Traces for RI = 1.62
Random Model Cosine Model ISO Model
Simple Heart
Designed by Jeff Graham - Copyright December 2001
Angles for R.I. = 1.62 33 facets + 11 facets on girdle = 44
1-fold, mirror-image symmetry 96 index
L/W = 1.088 T/W = 0.683 T/L = 0.628 P/W = 0.432 C/W = 0.157 H/W = (P+C)/W+0.02 = 0.609 P/H = 0.710 C/H = 0.257
Vol./W^3 = 0.216 Brightness at 0 degrees tilt for RI = 1.62
COS = 73.8 ISO = 87.9
Pavilion
P1 42.32 09-87 Cut to center point.
P2 40.98 44-52 Cut to center point.
P3 39.21 36-60 Cut to center point.
P4 38.70 26-70 Cut to center point.
P5 41.53 17-79 Cut to center point.
P6 43.00 11-85 Cut to center point.
P7(G) 90.00 09-87 Cut to meet P1.
P8(G) 90.00 11-85 Cut to meet P6.
P9(G) 90.00 17-79 Cut to meet P5.
P10(G) 90.00 26-70 Cut to meet P4.
P11(G) 90.00 36-60 Cut to meet P3.
P12(G) 90.00 48 Cut to meet P2.
P13 63.55 48 Cut to meet P12(G).
Crown
C1 44.00 09-87 Cut to meet girdle
C2 44.00 11-85 Cut to meet girdle
C3 41.20 17-79 Cut to meet girdle
C4 37.81 26-70 Cut to meet girdle
C5 34.35 36-60 Cut to meet girdle.
C6 44.00 48 Cut to meet girdle.
C7 33.83 46-50 Cut to meet girdle.
C8 30.12 32-64 Cut to meet girdle.
C9 36.69 14-82 Cut to meet girdle.
C10 29.69 96 Cut to meet girdle.
C11 27.34 48 Cut to meet C6,C7.
T 0.00 Table Cut to meet C8-C11...

Simple Heart in man-made Ruby

Simple Heart - Cutting Remarks

Shown at left is a 11.9 x 11mm x 7.1mm deep ~ 6.48 carat Simple Heart cut from man-made Ruby by Jeff Graham.

I have had a lot of people ask me for a very simple heart to cut in smaller sizes. Most other hearts that are available out there (not that there are very many), need to be cut in a larger size, although my "SweetHeart" will cut fairly small with no problem, it does have more facets. This heart has a very low number of facets (44, including the table). I only used the bare minimum needed to have a nice heart shape/outline.

This design is pretty straight forward to cut... The only thing that you will need to be careful of is to be sure that when you cut P1 & P2 that they line up over the center of the dop. Like almost all hearts this design is 1-fold symmetry and because of this you could cut it to center point, but not be centered on the dop. So be sure you are cutting it centered, when you start. I have you cut P1 and P2 from opposite directions to help facilitate centering. This can be cut in R.I. 1.62 to 1.93 with no changes.

Enjoy cutting your Simple Heart! 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.

Editor's Note: Be sure and check out this Simple Heart companion article Jeff has written on Cutting Sapphires, which is profusely illustrated with nice close-up pics of a Simple Heart in process.


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Bob Keller