This is a stunning example of an original Art Deco star sapphire ring mounted in platinum (not marked, but tested) with five 2 mm, single cut diamonds on each foliate designed shoulder. The 6 ray star is nicely centered on the medium high dome of the cabochon. The sapphire is a very slightly bluish pink in color.
The ring is currently a size 4.5, and it really looks pretty as a pinky ring, but it may also be sized by your jeweler to fit another finger. It weighs 4.55 grams.
The star sapphire measurements are: 8.32 mm by 7.68 mm by 7.93 mm (deep).
The ring is in excellent condition and really very lovely!