If your measurement is between two sizes, we recommend that you choose the larger size. 

1) Use one of your partner's other rings to get a size approximation
Use this ring to trace the inner circle on paper, measure the diameter of this circle, take that number times 3.14 to find the circumference of the ring. Compare the circumference to Darry Ring Size Chart to find your partner's size.
2) Ask the help of your partner's friends to determine ring size
Ask the friend to take your partner shopping, when they pass a jewelry store, the friend coincidentally suggest to visit it, and ask your partner try rings on, then your partner will get professionally sized.
3) Size her finger while she sleep
This is also a good idea if your partner has deep sleep. While your partner is in Sleeping Beauty mode, use our free Ring Sizer to gently measure her finger.
Click to get more tips on how to measure ring size.

Of course, you can modify the size at any time by contacting our customer service before your order is shipped. It is important to note that each diamond ring from Darry Ring is custom made, and if the size is modified during the process, the customization period will be extended. 

Darry Ring provides one time free resizing service, but the shipping cost needs be borne by the customer.