This collection starts with the cubic, dodecahedral, and octahedral diamond crystal shapes as the stones came out of the ground. Over time, cutters learned to grind away surface damage and imperfections, leaving flat spots (facets) that dramatically improved optics and appearance. The laws of optics were not quantified until the early 1700’s, so the cutters had to experiment and use their intuition to see what worked and what did not. They didn’t know why facets changed the appearance, they just knew that there were changes. Over the centuries, they continued experimenting with different facet patterns, proportions for the table and culet facets, and facet angles to create the early works of art such as the Florentine (cut ~1500), Wittelsbach (prior to 1565), Sancy (~1400), and many of the other historic diamonds. In the early 1700’s, science eventually overtook intuition as they learned about the mathematical relationships between reflection, refraction, dispersion, and other optical properties, eventually resulting in the round brilliant cut of the 20th Century. This collection shows the progression of their experimentation, exactly what a diamond cutter saw and what they were thinking, allowing you to literally get into the minds of cutters that lived hundreds of years ago.