Antique Black purple art glass chalice 14k gold handpainted gold foil Persian

This is a gorgeous antique vase/goblet made of black purple handblown art glass, hand painted with 14 karat gold gilding and gold foil. The ornate center is a relief, appears to be embossed or carved out of the glass. The design is gold foil, I believe pressed and is raised to the touch. I’m not certain where it’s from, but was told probably Persian. It was purchased at an estate sale.I have not found any other pieces similar online to compare or price with. I do know it is an authentic antique stunning piece of statement art. When the light shines through the outer black glass, it appears to be a beautiful violet purple. A tea candle inside gives off a red color. The vase, goblet is in perfect condition, but for a little bit of wearing on the painted 14k gold. There are no markings or labels underneath. I’m battling whether to keep it or not, so am asking a price which will decide. Feel free to contact me with any information you might have in regard to this piece. See pics for sizing.