Vintage Large Deep Blue Turquoise Gemstone Ring Sterling Silver Gold Vermeil Twisted Rope Bezel Persian? size 5

This is an absolutely gorgeous Turquoise a Gemstone ring that measures approximately 14×10 mm, It is a true blue with a tiny bit of matrix on one end Other than that it is very Eye clean, The ring itself is solid sterling silver with a gold Vermeil. Very nicely made and high-quality ring. I believe just by looking at it that it could be Persian Turquoise. Please see photos for yourself for approximate measurements and further details. The ring is a size 5.