Diamond
PC 01.681 Hearts and Arrows Diamond
Designed by Marcel Tolkowsky
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 01.681 Hearts and Arrows Diamond
Marcel Tolkowsky
- Shape
- Round
- Facets
- 153
- L/W ratio
- 1.00
- Depth ratio
- 0.613
- Table fraction
- 55.0%
- ISO brightness
- 74.8%
- Pavilion margin
- 16.32°
- Gem score
- 0.8488
round brilliant, 57/58-facet family, hearts-and-arrows capable, file RI >= 2.15. Designed for the gem; ISO 74.8 % at n_d 2.4175, pavilion margin 16.3 deg, gem score 0.8488 (rank 660 of all suitable designs). Crown main 34.5 deg / pavilion main 40.75 deg, 153 facets, L/W 1.00, depth/width 0.61, table 0.55.
Design: PC 01.681 Hearts and Arrows Diamond — Marcel Tolkowsky. Craft-heritage reference from the historical faceting-design corpus; not a studio-owned design.
Alternates considered
PC 01.697 Old European Cut Diamond
R. Strickland
- Shape
- Round
- Facets
- 122
- L/W ratio
- 1.00
- Depth ratio
- 0.677
- Table fraction
- 44.6%
- ISO brightness
- 74.5%
- Pavilion margin
- 16.07°
- Gem score
- 0.8467
round brilliant, 57/58-facet family, hearts-and-arrows capable, file RI >= 2.15. Designed for the gem; ISO 74.5 % at n_d 2.4175, pavilion margin 16.1 deg, gem score 0.8467 (rank 701 of all suitable designs). Crown main 40.5 deg / pavilion main 40.5 deg, 122 facets, L/W 1.00, depth/width 0.68, table 0.45.
Design: PC 01.697 Old European Cut Diamond — R. Strickland. Craft-heritage reference from the historical faceting-design corpus; not a studio-owned design.
Beta Brilliant aka SRB
Jeff Ford
- Shape
- Round
- Facets
- 73
- L/W ratio
- 1.00
- Depth ratio
- 0.599
- Table fraction
- 54.6%
- ISO brightness
- 75.7%
- Pavilion margin
- 17.57°
- Gem score
- 0.8528
round brilliant, 57/58-facet family, hearts-and-arrows capable, file RI >= 2.15. File RI 2.16; ISO 75.7 % at n_d 2.4175, pavilion margin 17.6 deg, gem score 0.8528 (rank 576 of all suitable designs). Crown main 28.0 deg / pavilion main 42.0 deg, 73 facets, L/W 1.00, depth/width 0.60, table 0.55.
Design: Beta Brilliant aka SRB — Jeff Ford. Craft-heritage reference from the historical faceting-design corpus; not a studio-owned design.
Sourcing diamond at this geometry?
Tell us your target shape and volume — we’ll quote availability and pricing directly.