The band is 2.1 mm wide at the back and narrows to 1.75 mm under the stone. From the side the head looks lighter, and the claws sit on top of the band instead of beside it.
The four claws are 0.9 mm round wire. They meet the stone at its girdle, the widest edge, and bend over the crown by about half a millimeter. Two thin rails tie them into a basket: one just under the girdle and one near the point of the stone, so the claws hold their spacing if the ring takes a knock.
The stone sits 5.8 mm above the finger. Its point clears the top of the band by 0.35 mm, which is as low as it can go without touching the metal.
At the depth modeled here, a 6.5 mm round sapphire weighs about 1.2 carats. Many sapphires are cut deeper and weigh more for the same face-up size, which is why the design is drawn around the stone's millimeters. More on that in the journal.
