Measuring Your Ring Size
Once you have found your perfect ring, the next important step is to figure out your exact ring size. It is almost impossible to resize the majority of our rings as a result of special components contained in their inner and outer layers. 

 

There is absolutely nothing to worry about, observe the four steps outlined below to find your ring size.

STEP 1: VISIT TWO RESPECTED JEWELERS AT LEAST.

 You may have to pay a visit to more than two. However, the objective is to get two jewelers that are both in agreement with your size. Request them to make use of a “micrometer” or “caliper” to take the measurement. The most accurate measurement to give to your jeweler is the inner diameter of the ring in millimeters. In case you have an existing ring having the same measurement, and you intend to purchase, request the jewelers to measure the inner diameter of this ring. 

 Bear in mind: Every ring here at Cairo comes is made with a comfort fit. If you are planning to buy a ring from us, have your local jewelers measure your ring finger in a comfort fit.

STEP 2: FINDING YOUR DESIRED RING WIDTH

 It is important to take note of the width of the ring you wish to buy while measuring your ring size. You should be measured in the specific width you are buying because the wider the ring, the snugger it will fit. The broader the ring, the firmer it feels on the finger -therefore that’s the reason the size needs to increase together with the width in some instances. The majority of plastic ring sizers possess a maximum width of 3 .5mm. If you buy a ring with a maximum width of 8mm, the size of your ring will likely increase by a quarter size from your best fitting ring sizer.

STEP 3: BUY A CUSTOMIZED SIZER IN YOUR PROJECTED SIZE

 

Our Customized sizers cost only $10 each and remain the most precise method to figure out your size because we use your estimated size to develop the width and fit of your preferred ring. Several customers buy smaller and bigger sizes to provide for 100% accurateness and comfort. For instance, if 9 is your estimated size, think about also buying customized sizers of sizes 8 .75 and 9 .25.

Our customized sizes are produced once an order has been placed and ship within 1-2 weeks. If we have your preferred width/size available, it will be shipped out in 3-5 days.*

STEP 3: WEAR YOUR CUSTOM SIZER FOR 2 DAYS

Your customized sizer(s) will come with guidelines. However, it's very straightforward; wear the customized sizer for two successive days to see whether the ring fits comfortably.  If you bought different sizes, wear them one at a time for two days and figure out the size that fits comfortably the most.

HOW YOUR RING SHOULD FIT

The term "fit" is relative. However a ring that fits is one which you don’t remember that you're putting on and is snug ( not overly slack such that it will readily fall off). Listed below are several helpful suggestions for finding a suitably fitting ring.

  • For most people, a good fit implies comfy in most cases. The size of the fingers changes over time, meaning that a "perfect ring size" does not exist. At times your ring will fit tight, and other times more loose. The size of your fingers changes during the day as a result of temperature, eating habits, activities, together with other variables. The time of the year equally plays a part in how fitting a ring is. You might observe it feels more loose during winter months tighter in warmer months.

  • A ring ought to fit conveniently over your knuckle, and you shouldn’t have any difficulties wearing it, and then have a small tug at the knuckle while takin it off. You may have to turn the ring once or twice to remove it. Fit is not so much a science as it is a personal choice.

STEP 4: LET US KNOW YOUR SIZE

If you're certain that you've discovered your special "perfect fit", get in touch with us immediately and let us know. We will never move your ring to the production line until we have a definite size.

INTERNATIONAL SIZING CONVERSION CHART FOR RINGS

US Size Inner Diameter (mm) Circumference (mm) British French German Japanese Swiss
2.000 13.19 41.43 D   13.50 2 1.75
2.125 13.29 41.76          
2.250 13.39 42.08 D 1/2 42     2.25
2.375 13.50 42.41          
2.500 13.60 42.73 E   13.75 3 3.00
2.625 13.71 43.06   43      
2.750 13.81 43.38 E 1/2       3.5
2.875 13.91 43.71          
3.000 14.02 44.03 F 44 14 4 4.25
3.125 14.12 44.36          
3.250 14.22 44.68 F 1/2     5 4.75
3.375 14.33 45.01   45      
3.500 14.43 45.34 G   14.50   5.5
3.625 14.53 45.66          
3.750 14.64 45.99 G 1/2 46   6 6.00
3.875 14.74 46.31          
4.000 14.85 46.64 H   15 7 6.75
4.125 14.95 46.96   47      
4.250 15.05 47.29 H 1/2       7.50
4.375 15.16 47.61          
4.500 15.26 47.94 I 48 15.25 8 8
4.625 15.36 48.26     15.50    
4.750 15.47 48.59 J       8.75
4.875 15.57 48.92   49      
5.000 15.67 49.24 J 1/2   15.75 9 9.25
5.125 15.78 49.57          
5.250 15.88 49.89 K 50     10
5.375 15.98 50.22          
5.500 16.09 50.54 K 1/2   16 10  
5.625 16.19 50.87   51      
5.750 16.30 51.19 L       11.25
5.875 16.40 51.52          
6.000 16.50 51.85 L 1/2 52 16.50 11 11.75
6.125 16.61 52.17          
6.250 16.71 52.50 M     12 12.5
6.375 16.81 52.82   53      
6.500 16.92 53.15 M 1/2   17 13 13.25
6.625 17.02 53.47          
6.750 17.12 53.80 N 54     13.75
6.875 17.23 54.12          
7.000 17.33 54.45 N 1/2   17.25 14 14.50
7.125 17.44 54.77   55      
7.250 17.54 55.10 O       15
7.375 17.64 55.43          
7.500 17.75 55.75 O 1/2 56 17.75 15 15.75
7.625 17.85 56.08          
7.750 17.95 56.40 P       16.25
7.875 18.06 56.73   57      
8.000 18.16 57.05 P 1/2   18 16 17.00
8.125 18.26 57.38          
8.250 18.37 57.70 Q 58     17.5
8.375 18.47 58.03          
8.500 18.57 58.35 Q 1/2   18.50 17 18.25
8.625 18.68 58.68   59      
8.750 18.78 59.01 R       19
8.875 18.89 59.33          
9.000 18.99 59.66 R 1/2   19 18 19.5
9.125 19.09 59.98   60      
9.250 19.20 60.31 S       20.25
9.375 19.30 60.63          
9.500 19.40 60.96 S 1/2 61 19.50 19 20.75
9.625 19.51 61.28          
9.750 19.61 61.61 T       21.50
9.875 19.71 61.93   62      
10.000 19.82 62.26 T 1/2   20 20 22
10.125 19.92 62.59          
10.250 20.03 62.91 U 63   21 22.75
10.375 20.13 63.24          
10.500 20.23 63.56 U 1/2   20.25 22 23.25
10.625 20.34 63.89   64      
10.750 20.44 64.21 V       24
10.875 20.54 64.54          
11.000 20.65 64.86 V 1/2 65 20.75 23 24.75
11.125 20.75 65.19          
11.250 20.85 65.51 W       25.25
11.375 20.96 65.84   66      
11.500 21.06 66.17 W 1/2   21 24 26
11.625 21.16 66.49          
11.750 21.27 66.82 X 67     26.5
11.875 21.37 67.14          
12.000 21.48 67.47 X 1/2   21.25 25 27.25
12.125 21.58 67.79   68      
12.250 21.68 68.12 Y       27.75
12.375 21.79 68.44          
12.500 21.89 68.77 Z 69 21.75 26 28.50
12.625 21.99 69.09          
12.750 22.10 69.42 Z 1/2       29
12.875 22.20 69.75          
13.000 22.30 70.07     22 27 29.75
13.125 22.41 70.40          
13.250 22.51 70.72 Z1       30.5
13.375 22.62 71.05          
13.500 22.72 71.37         31
13.625 22.82 71.70          
13.750 22.93 72.02 Z2       31.75
13.875 23.03 72.35          
14.000 23.13 72.68 Z3       32.25
14.125 23.24 73.00          
14.250 23.34 73.33         33
14.375 23.44 73.65          
14.500 23.55 73.98 Z4       33.5
14.625 23.65 74.30          
14.750 23.75 74.63         34.25
14.875 23.86 74.95          
15.000 23.96 75.28         34.75
15.125 24.07 75.60          
15.250 24.17 75.93         35.5
15.375 24.27 76.26          
15.500 24.38 76.58         36.25
15.625 24.48 76.91          
15.750 24.58 77.23         36.75
15.875 24.69 77.56          
16.000 24.79 77.88         37.5
16.125 24.89 78.21          
16.250 25.00 78.53          
16.375 25.10 78.86          
16.500 25.21 79.18          
16.625 25.31 79.51          
16.750 25.41 79.84          
16.875 25.52 80.16          
17.000 25.62 80.49          
17.125 25.72 80.81          
17.250 25.83 81.14          
17.375 25.93 81.46          
17.500 26.03 81.79          
17.625 26.14 82.11          
17.750 26.24 82.44          
17.875 26.34 82.76          
18.000 26.45 83.09          
18.125 26.55 83.42          
18.250 26.66 83.74          
18.375 26.76 84.07          
18.500 26.86 84.39          
18.625 26.97 84.72          
18.750 27.07 85.04          
18.875 27.17 85.37          
19.000 27.28 85.69          
19.125 27.38 86.02          
19.250 27.48 86.34          
19.375 27.59 86.67          
19.500 27.69 87.00          
19.625 27.80 87.32          
19.750 27.90 87.65          
19.875 28.00 87.97          
20.000 28.11 88.30