These lovely solitaires are all of Brilliant Cut and made of best grades of Cubic Zirconia Stone. 
All pieces are set in fine 925 sterling and rhodium finishing.
Made in Korea

A Classic Black Box with Champagne Gold Satin Ribbon is exclusively yours with every jewel piece purchased.

R2 @  $44

Center stone size: 4.5mm
Side stone size: 3.5mm, 2.5mm
Ring size: 5,6 and 7 (In Stock) 

R4 (5.5mm)  $42
Stone size: 5.5mm, 4 Claws 
Ring size: 5, 6 and 7 (in stock)

P6 (5.5mm)  @  $40 (In Stock)
Stone size: 5.5mm
Length: 1.4cm

(Chain not included)

E6  4 Claws 
Stone size: 5.0mm  @ $42  (In Stock)

Please measure with a ruler again, as picture may not be up to scale. 
Kindly study the sizes carefully upon placing orders.

You may use a ruler to measure the INTERNAL diameter of your current ring, then use this chart to determine which size you falls under.
Kindly study the sizes carefully upon placing orders