This is a popular design that we have been doing in remounting a marquise.
The clean lines and modern design freshens up a diamond shape that was very popular in the 80’s/90’s. The fashion pendulum always swings and the marquise may see a revival.
I drew up a variation of the design by angling out the sides and bead setting her diamonds from her original mounting. We did not end up using the baguettes in this piece.
Channel setting the marquise on it’s short side is unconventional. I would not suggest setting it this way in a ring. A pendant or earrings don’t take the abuse that a ring undergoes. In a ring, the exposed points of the marquise would catch on things and would constantly teeter-totter itself loose.