This ring although unmarked is possibly Georgian. It is at the very lates a mid-Victorian ring. It was acid-tested to 9 Karat gold.  There are 4 Rose cut Diamonds which are bead-set and and etched with a star in four separate square settings.  This ring is ideal for someone that is too active to wear protruding settigns.
 
Dimensions:
 
Diamonds: Rose Cut Quality: VS-SI, Grey . 4tw~ 0.20 Carat
 
Ring size: 8 can be resized up or down 2 sizes
Weight: 2.0 grams
 
Estimaed Retail Price: R@1350
VV Price: $550
 
Condition: Antique is fairly good condition for its age. Shows signs of wear and slight scratches.