The first photo shows the most correct angle at which the pendant should hang. Being as the bale projects from the back, the pendant cannot lie completely flat for photos.
The pendant measures approximately 1 and 7/8 inches high, by just over approximately 1 and 1/2 inches wide, and just over roughly 5/16 of an inch deep. The bale opening is approximately 3/16 of an inch, or about 4.76 millimeters, wide. (Included is a US Quarter in the photographs, for the measurement-challenged and ruler-averse.) The back of the pendant is stamped, "925", unsigned. Weight is approximately 10.1 grams, which includes the stone weight, of course.
These is a vintage item, which has been worn and enjoyed. It will have the expected surface scratches and possibly small dings to the silver, from normal wear. No visible chips or cracks to the stones. This appears handcrafted, and will not be perfectly symmetrical, nor machine-perfect in any other way. Hand polished, but there may be further tarnish to remove, if you choose, especially in the crevices.
A very stylish and unusual handmade and vintage Sterling silver, red jasper, and turquoise pendant. Very nice color, bold and striking.