I searched for a long time to find the artisan that signed this ring, but I could not find a single letter P located under the sterling stamp I believe it to be Navajo in Origin It has Excellent Silver Work and 4 Well Matched Blue Turquoise Channel Set Stones Crown measures 5/8 of an Inch by 1 & 3/8 Inches and is a Size 8 If you know who this signature belongs to; let me know Priced to Sell for $86 from the Genuine Stoner Closet