Tanzanite
PC 13.067E CAM Trilliant
Designed by Fred W. Van Sant, X 60, Extra
Craft-heritage reference library — every cut design below is drawn from a historical faceting-design corpus with mixed third-party licensing (designer credits and license notes are shown on each spec sheet). The studio does not own and does not exclusively sell these historical designs. They are shown here for sourcing and educational context — to demonstrate the geometry our verification process can evaluate on any species. Our only studio-owned, exclusively-sold designs are Dragon Eye and Eye of Zul, under Signature Cuts.
Primary pick
PC 13.067E CAM Trilliant
Fred W. Van Sant, X 60, Extra
- Shape
- Triangle
- Facets
- 58
- L/W ratio
- 1.00
- Depth ratio
- 0.555
- Table fraction
- 54.1%
- ISO brightness
- 80.2%
- Pavilion margin
- 4.80°
- Gem score
- 0.8729
cushion or trillion (brilliant / mixed), RI 1.67-1.72. Designed for the gem; ISO 80.2 % at n_d 1.6931, pavilion margin 4.8 deg, gem score 0.8729 (rank 523 of all suitable designs). Crown main 20.61 deg / pavilion main 41.0 deg, 58 facets, L/W 1.00, depth/width 0.55, table 0.54.
Design: PC 13.067E CAM Trilliant — Fred W. Van Sant, X 60, Extra. Craft-heritage reference from the historical faceting-design corpus; not a studio-owned design.
Alternates considered
PC 13.125A FVS-336 Trillium
Fred W. Van Sant, Star Cuts 6
- Shape
- Triangle
- Facets
- 58
- L/W ratio
- 1.04
- Depth ratio
- 0.614
- Table fraction
- 45.2%
- ISO brightness
- 77.8%
- Pavilion margin
- 6.71°
- Gem score
- 0.8667
cushion or trillion (brilliant / mixed), RI 1.67-1.72. Designed for the gem; ISO 77.8 % at n_d 1.6931, pavilion margin 6.7 deg, gem score 0.8667 (rank 635 of all suitable designs). Crown main 29.18 deg / pavilion main 42.91 deg, 58 facets, L/W 1.04, depth/width 0.61, table 0.45.
Design: PC 13.125A FVS-336 Trillium — Fred W. Van Sant, Star Cuts 6. Craft-heritage reference from the historical faceting-design corpus; not a studio-owned design.
PC 08.117A FVS-302 Facets Cut
Fred W. Van Sant, Star Cuts 6
- Shape
- Cushion
- Facets
- 81
- L/W ratio
- 1.30
- Depth ratio
- 0.801
- Table fraction
- 50.0%
- ISO brightness
- 73.8%
- Pavilion margin
- 4.80°
- Gem score
- 0.8344
cushion or trillion (brilliant / mixed), RI 1.67-1.72. Designed for the gem; ISO 73.8 % at n_d 1.6931, pavilion margin 4.8 deg, gem score 0.8344 (rank 1315 of all suitable designs). Crown main 46.48 deg / pavilion main 41.0 deg, 81 facets, L/W 1.30, depth/width 0.80, table 0.50.
Design: PC 08.117A FVS-302 Facets Cut — Fred W. Van Sant, Star Cuts 6. Craft-heritage reference from the historical faceting-design corpus; not a studio-owned design.
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