Old Mine Cushion Diamond Serpentine Ring in Platinum.  This modern Erstwhile serpentine antique style engagement ring is as unique as it is stunning.  The center stone is a GIA certified old mine cushion cut, which allows the ring to sit low to the finger.  The bezel set center stone has no prongs and the under carriage is encrusted with single cut diamonds.  On one side of the center diamond, the shoulder of the ring features a mix of old European cut and single cut diamonds set in a pave style.  The other side of the ring features a unique open shank, with a row of diamonds cascading partway down.  This masterfully crafted modern engagement ring features the perfect blend of old and new elements that come together in a stunning, one of kind piece.