Omg omg omg its perfect! Art Deco engagement ring, circa 1925. Featuring a .79 carat (approx) EGL certified old European cut diamond with F-G color and VS1 clarity. The center stone is accentuated by a row of triangle cut emerald arrows on ether side, and single cut diamonds all around the geometric platinum setting. Via Diamonds in the Library.
The Projector Ring - There’s a transparent slide installed and a lens on the opposite side. When you send a ray of light through it the ring makes a decent projector. The built-in slides can be changed at will. Awesome!