Trillion Genuine Blue Sapphire Bezel Solitaire Engagement Ring

Ring Sizing Chart

Request a Free Ring Sizer

We are happy to send you a complimentary ring sizer so that you can easily measure your ring size at home. Ring sizers shipped to US addresses only and will arrive within 5 to 10 business days. 

Ring Size Chart

All Nodeform rings are specified in standard US sizes. View the conversion chart to see how US sizes map to finger diameter, as well as how US sizes convert to Canada, Australia, UK and other countries.

View the International Ring Size Chart

Inside Diameter in mm	US, Canada, Mexico	UK, Australia, Ireland, New Zealand, South Africa	France	Germany, Russia, Ukraine, Asia	India, China, Japan, South America, Turkey, Israel	Italy, Spain, Netherlands, Switzerland
14.07	3	F	44	14	4	4
14.27	3.25	F 3/4	44.625	14.25	---	4.625
14.48	3.5	G 1/4	45.25	14.5	5	5.25
14.68	3.75	H	45.875	14.75	6	5.875
14.88	4	H 1/2	46.5	15	7	6.5
15.09	4.25	I	47.125	15.25	---	7.125
15.29	4.5	I 1/2	47.75	15.5	8	7.75
15.49	4.75	J 1/4	48.375	---	---	8.375
15.70	5	J 1/2	49	15.75	9	9
15.90	5.25	K 1/4	49.625	16	---	9.625
16.10	5.5	L	50.25	16.25	10	10.25
16.31	5.75	L 1/4	50.875	---	11	10.875
16.51	6	M	51.5	16.5	12	11.5
16.71	6.25	M 1/2	52.125	16.75	---	12.125
16.92	6.5	N	52.75	17	13	12.75
17.12	6.75	N 1/2	53.375	---	---	13.375
17.32	7	O	54	17.25	14	14
17.53	7.25	O 1/2	54.625	17.5	---	14.625
17.75	7.5	P	55.25	17.75	15	15.25
17.93	7.75	P 1/2	55.875	---	---	15.875
18.14	8	Q	56.5	18	16	16.5
18.34	8.25	Q 1/2	57.125	18.25	---	7.125
18.54	8.5	Q 3/4	57.75	18.5	17	17.75
18.75	8.75	R 1/4	58.375	18.75	---	18.375
18.95	9	R 3/4	59	19	18	19
19.15	9.25	S 1/4	59.625	19.25	---	19.625
19.35	9.5	S 3/4	60.25	19.5	19	20.25
19.56	9.75	T 1/4	60.875	19.75	---	20.875
19.76	10	T 1/2	61.5	20	20	21.25
19.96	10.25	U	62.125	20.25	21	22.125
20.17	10.5	U 1/2	62.75	20.5	22	22.75
20.37	10.75	V 1/4	63.375	---	---	23.375
20.57	11	V 1/2	64	20.75	23	24
20.78	11.25	W 1/4	64.625	---	---	24.625
20.98	11.5	W 3/4	65.25	21	24	25.25
21.18	11.75	X 1/4	65.875	---	---	25.875
21.39	12	Y	66.5	21.25	25	26.5
21.59	12.25	Y 1/2	67.125	21.5	---	27.125
21.79	12.5	Z	67.75	21.75	26	27.75
22.0	12.75	Z + 1/2	68.375	---	---	28.375
22.20	13	Z + 1	69	22	27	29

Helpful sizing tips

1. Fingers on a dominant hand are generally slightly larger than on non-dominant hands— make sure you measure the right finger on the correct hand!
2. Rings with wider bands will fit a bit tighter. Consider selecting one 1/4 to 1/2 size up from your normal ring size.If you plan to measure one of your partner's rings, try to measure one with a similar width as the ring you want to purchase.
3. For  stacking rings: for a more comfortable fit, consider selecting one 1/4 to 1/2 size up from your normal ring size.
4. Make sure the finger is at normal body temperature — fingers can shrink or expand when hot or cold.
5. Your fingers tend to change size throughout the day — the best time to measure your finger is the end of the day.
6. If your knuckle is bigger, take 2 measurements and choose a size in between — ring needs to fit over knuckle but not be too loose or it will shift around.