Sizing and Alterations

  • Measuring size
  • Size Conversion
  • Ring Sizing

Ring size cannot be measured just by eyeballing a finger. It is the job of a professional with experience and knowledge. Do not rely on low-end store clerks or do-it-yourself sizing sets from eBay. Most jewelers measure fingers in half-size increments. Luxury retailers use quarter-size increments. We use a century-old measuring set that has 1/8 increments. Such precision is essential for a comfortable yet secure fit during wear.

Leon Mege ring stick measuring the ring size

Incorrect sizing is a common problem, which is why measurement is so important to ensure a precise fit. When we take your measurements, only you can feel how tight the ring fits. How snugly it fits is a matter of personal preference; some like a loose fit and others like it to fit as tight as possible.

We recommend a tighter fit that will keep your ring more secure and eliminate the risk of it sliding off your finger on its own. We use an antique set of measuring rings made by Maestro’s great-grandfather that has all sizes in 1/8 increments.

The measuring set is useful for rings up to 2.5 mm in width. Wider rings – usually men’s wedding bands – do not require small sizing steps as engagement rings. 1/4 size increments are suitable for bands up to 4 mm in width. Wider bands can be fitted to the nearest half-size.

Ring style can affect the size – a hollowed-out ring feels bigger than a solid one.  A wide “comfort-fit” ring is much easier to slide on a finger than a similar ring with a flat inner surface.

Ring size measuring set

A ring that is too large can slip off unexpectedly. It will be prone to bending. Besides, the ring will spin around the finger, making it difficult to wear and enjoy.

On the other hand, a ring that is too tight will restrict blood flow to the finger. The too-tight ring will cause the skin to puff up around it, making the finger appear “fat” and blocking the side view of your beautiful engagement ring.

The knuckle is the fullest part of a finger. A ring should slide over the knuckle snugly but without tearing into the skin. The difference in circumference of a knuckle and proximal phalanx varies from person to person.

Unless your engagement ring is elastic, you have to live with the ring-spinning freely on your finger. It is a typical problem without a perfect solution.

Adding traction inserts, such as balls, bars, bullets, shots, or liners inside the shank will reduce spinning and make it feel closer to the skin. An innerspring can also be added to hug the finger once the ring has cleared the knuckle.

There are also prosthetic shanks that open and close, such as FingerMate or SureFit. They have limited use because of the high cost and short life span. In addition, prosthetic shanks have a concealed movement making them bulky and incomparable with high-end, delicate jewelry.

We account for seasonal or even daily changes when measuring a finger because the size varies with weather, diet, or medical conditions. Air temperature, humidity, atmospheric pressure, seasonal changes (up in summer, down in winter), hours (up in the morning, down at night), childbirth, and feminine cycle all affect the size, sometimes severely.

Each measurement is a snapshot of the size on this day, at this time, etc. Therefore, we need to know how your personal size fluctuates to ensure a proper fit.

A measurement done at a jewelry store does not guarantee the size is correct. There are several reasons for that. A salesperson might be inexperienced or simply bad at taking measurements.

Even an experienced salesperson can be sloppy, especially when they feel that you waste their time without any hope for commission. Nevertheless, anecdotal evidence suggests that Tiffany’s is a good place to get your finger measured. Finger size measured at Tiffany, more often than not, makes the engagement ring fit well.

Jewelers can use the following terms describing a finger size:

  • 4-plus equals 4 1/8
  • 5-slant(variations: “scant”, “tight”, “just under”) equals 4 7/8
  • 7-minus equals 6 7/8

When you don’t have a jeweler around to measure your finger, you can wrap a paper strip around the knuckle. It’s going to give you a pretty good idea of what your size is.

Sometimes a plastic cable tie is used to get the measurement done. The ring size of an existing ring can be measured with a ring gauge or a ring “stick.”

Sizing a ring is like a small surgery. You are advised not to do it unless it’s necessary. We recommend going through a few seasons in your home climate before sizing a ring.

The most difficult rings to size are channel set rings, closely followed by rings with lots of pave. Plain solitaires and three-stone rings are simple to size. In general, sizing rings up (increasing the size) is less problematic than sizing down.

There are several ways to change a ring size. Typical sizing requires cutting through the shank and adding or removing a section. There are several concerns. Platinum comes in only one color because it is 95% pure, so the color match is not an issue.

Gold, on the other hand, has a multitude of alloys, all slightly different in color. As a result, matching gold color can be a daunting task, especially when sizing antique rings. A modest increase or decrease in size is simple. But a significant change in size is a challenge because restoring the ring’s roundness can cause its head to stretch or even rip apart.

Filing metal inside the ring is the least invasive method of freeing some room for your finger. By rimming out the shank, we can increase ring size by about a quarter of full size on average. The exact range depends on the shank width, ring construction, and extra metal thickness available for removal. Plain wedding bands can also be stretched.

 

 

The German ring size is the numeric value of the inside diameter. This system is also popular in East European countries and Russia.

The French decided to use the circumference instead of the diameter just to stick it to the Krauts.

Much like the idea of driving a car on the opposite side of the road, the British letter-based ring sizes make no sense to anyone outside the UK, Ireland, Australia, and New Zealand.

The Swiss system is often called the European system. Swiss ring sizes are simply the circumference minus 40. Swiss ring sizes are used in Italy, Spain, Israel, the Netherlands, and a bunch of other countries that do not speak English, yet hate the French as much as the British do.

There is no point of reference for the US system either. Still, since Americans are buying the bulk of rings produced worldwide, the US system is well understood and accepted. It is the standard system in the US, Canada, and Mexico. The size is calculated by deducting 11.54 from the diameter and dividing the result by 0.83.

Asian ring sizes use numeric values between 1 and 34 without the nonsense of half- or quarter-size increments. Chinese, Japanese, and other Asian systems differ from each other.

Most Asian ring size charts on the web are notoriously imprecise because wrong data is constantly copied from one website to another.

We have the most accurate and up-to-date chart and gladly share it here with you.

The main Asian systems are Chinese, Japanese, Hong Kong, and Taiwan.  The Chinese claim that the Japanese stole their system. Japanese say the Chinese took their system. Altogether, they blame Koreans.

The Japanese system is straightforward, the sizes are 0.3 mm of the diameter apart.  Each size is calculated by deducting 12.67 from the diameter and multiplying the result by 3.

The Hong Kong system is slightly different from the Japanese and Chinese systems, and we don't know why.

However, Polish ring sizes 15 to 20 are exactly the same as Hong Kong's. But sizes smaller than 15 and larger than 20 are mysteriously out of synch. Then again, they pack a garden hose in a 50-foot long box in Poland.

  • Sizes 1-3 Tiny! Before proposing, check her ID. It might be illegal 
  • Sizes 3-4 US Petite, normal in Asia
  • Sizes 4-5 Average size in Asia, petite in the US
  • Size 5 Standard stock size in Asia
  • Sizes 5-6 Most common range of sizes. If unsure, go with 5 1/2
  • Size 6 - Stock size in the US.
  • Sizes 6-7 Full size.
  • Sizes 7-8 Large size
  • Sizes 8-9 Plus-size
  • Sizes 9 and above are typically men's sizes or an arthritic knuckle.

Only a professional knows how to measure finger size accurately and precisely. In addition, the fit varies for different ring styles, widths, and measuring sets. Personal preferences for tighter or looser fit are also a consideration.

We do not measure the comfort with which the ring sits on the finger. Instead, we measure how easy the ring slides past the widest part of a finger - the knuckle.

 

To measure the size of a ring print this form: Download PDF (923Kb). Make sure to set scaling to "None" when you print.

ring stick ring size measuring tool leon mege

 

  flagusflagfrflagukflagswchina flag icon 16 flagjaflaghktaiwan flag icon 32flaggeCaspierpoland flag icon 32 
CircumferenceDiameterUSFrançaisBut of course!SvizraChina日本語 JapanHong KongTaiwanDeutscheCaspierPolish
31.1309.90000          
33.6210.700          
35.5011.3           
35.8111.4           
36.1311.5           
36.4411.60          
36.7611.7           
37.0711.8           
37.3811.9           
37.7012.01/2 A      12  
38.0112.1           
38.3312.23/4 A 1/2      12 1/4  
38.6412.3           
38.9612.47/8          
39.2712.51 B     12 1/2   
39.5812.6 1 1/8 B 1/4        
39.9012.71 1/440 B 1/2     12 3/4  
40.2112.81 1/2 B3/4        
40.5312.91 5/8 C 0.5     13  
40.8413.01 3/4 41C1/4        2
41.1513.11 7/8 C1/2 1    5.9  
41.4713.22 C 3/41.5    13 1/4   
41.7813.32 1/842 D 1.75       3
42.1013.42 1/4 D 1/4   2   6.4  
42.4113.52 3/8 D 1/22.25      13 1/2  
42.7313.62 1/2 D 3/42.75        
43.0413.72 5/843 E 3     13 3/4 
43.3513.82 3/4 E 1/4  3  
43.6713.92 7/8 E 1/23.5        
43.9814.0344E 3/4 4     14  5
44.3014.1  F 4.25 7.5  
44.6114.23 1/8 F 1/4     14 1/4   
44.9214.33 1/445F 1/24.75      
45.2414.43 3/845 1/4F 3/4  5.5 5    8.1 
45.5514.53 1/245 1/2G5.5   6.5 14 1/2   
45.8714.63 5/845 3/4G 1/4        
46.1814.73 3/446G 1/26  6  14 3/4 8.6 
46.5014.83 7/8 G 3/4  6.5  7.5   
46.8114.94 H6.75        
47.1215.04 1/847H 1/47    15 9.2 8
47.4415.14 1/4 H 1/28.5        
47.7515.24 3/8 H 3/4  8  98.25    
48.0715.34 1/248I  8  15 1/4  9.7 9
48.3815.44 5/8 I 1/4        
48.6915.54 3/4 I 1/28.75   108.75  15 1/2  
49.0115.64 7/849I 3/4      10.3 
49.3215.75 J9.25     15 3/4  10 
49.6415.85 1/8 J 1/2        
49.9515.95 1/450J 3/410 10 1011  9.25 10.8  
50.2716.05 3/8 K      16  11
50.5816.1 5 1/2 K 1/210.5        
50.8916.25 5/851K 3/4 11  1112  10.25  11.3 
51.2116.35 3/4 L 11.25     16 1/4 12 
51.5216.45 7/8 L 1/4        
51.8416.5652L 1/211.75 12  16 1/211.9 
52.1516.66 1/8 L 3/4  12  1311    
52.4616.76 1/4 M12.5      16 3/4 13 
52.7816.86 3/853M 1/4        
53.0916.96 1/2 M 1/213.25 13  1314  11.75  12.5 
53.4117.06 3/4 M 3/4     17  14 
53.7217.16 5/854N13.75        
54.0417.26 7/8 N 1/4   14   13  
54.3517.37 N 1/214.514 15 12.517 1/4 15
54.6617.47 1/8 N 3/4        
54.9817.57 1/455O 15     17 1/2  
55.2917.67 3/8 O 1/4  15     13.6 
55.6117.77 1/2 O 1/2 15.7515.5  16  13.25 17 3/4 16 
55.9217.87 5/856O 3/4        
56.2317.97 3/4 P 16.25 16    14.1  
56.5518.07 7/8 P 1/4 16.5  17  14 18 17 
56.8618.18 P 1/217        
57.1818.28 1/857P 3/4   17   18 1/414.7  
57.4918.38 1/4 Q  17.5 18 14.5   18 
57.8118.48 3/858Q 1/4        
58.1218.58 1/2 Q 1/218.25   18   18 1/2 15.2 
58.4318.68 5/8          
58.7518.78 3/459Q 3/419 19   19 15.25   19
59.0618.88 7/8 R   19   18 3/4 15.8 
59.3818.99 R 1/419.5       
59.6919.0 60R 1/2  20  2016  19 20 
60.0019.19 1/8 R 3/4 20.25 20     16.3 
60.3219.29 1/4 S      19 1/4  
60.6319.39 3/8 S 1/420.75        21
60.9519.49 1/261S 1/2  21  2116.5    
61.2619.59 5/8 S 3/4   21   19 1/2 16.9 
61.5819.69 3/4 T 21.5       
61.8919.79 7/8 T 1/4  22  2217.25    22
62.2019.81062T1/222 22  19 3/417.4 
62.5219.910 1/8 T 3/4        
62.8320.010 1/4 U 22.75     20  23
63.1520.110 3/863U 1/4 23  23 23 18  18 
63.4620.210 1/2 U 1/2 23.25     20 1/4  
63.7720.310 5/8 U 3/4        24
64.0920.410 3/464V24 24  2424 18.5   18.5 
64.4020.510 7/8 V 1/4      20 1/2  
64.7220.611 V 1/224.75       
65.0320.711 1/865V 3/4   25    1925 
65.3520.811 1/4 W 25.25 25  2519.25 20 3/4   
65.6620.911 3/8 W 1/4        
65.9721.011 1/266W 1/226      21 26 
66.2921.111 5/8 W 3/4  262626 20  19.6  
66.6021.211 3/4 X 26.5    21 1/4   
66.9221.311 7/867X 1/4       27 
67.2321.412 X 1/227.25 27    20.2 
67.5421.512 1/8 X 3/427.5 27.5 27  20.75 21 1/2  
67.8621.612 1/4 Y 27.75       
68.1721.712 3/868Y 1/2  28     20.728 
68.4921.812 1/2 Z 28.5 28.5  28 21.25 21 3/4  
68.8021.912 5/8 Z 1/4        
69.1222.012 3/469Z 1/229  29   22 21.3 29 
69.4322.112 7/8          
69.7422.213  29.7530 292222 1/4  
70.0622.313 1/870   30    21.8 30
70.3722.413 1/4 Z+130.5        
70.6922.513 3/8    31 30  23 22 1/2  
71.0022.6 13 1/271Z+1.5 31  31   22.3  
71.3122.713 5/8         31 
71.6322.813 3/4 Z+2 31.75     22 3/4  
71.9422.913 7/8 Z+2.5        
72.2623.014 Z+332.25 32  2322.932
72.5723.114 1/8          
72.8823.214 1/4 Z+3.533     23 1/4   
73.2023.314 3/8     33    23.5 33
73.5123.414 1/2 Z+433.5        
73.8323.514 5/8       23 1/2   
74.1423.614 3/4 Z+4.534.25   34    24 
74.4623.714 7/8          
74.7723.815  24.75    23 3/4  
75.0823.915 1/8 Z+5        
75.4024.015 1/4   35.5    24   
75.7124.115 3/8          
76.0324.215 1/2  36.25     24 1/4   
76.3424.315 5/8 Z+6        
76.6524.415 3/4   36.75       
76.9724.515 7/8        24 1/2  
77.2824.616  37.5       
             

Any Leon Mege piece purchased directly from us is eligible for service. Leon Mege pieces purchased from authorized retailers are serviced by the dealer, who can send them to us for repair. Leon Mege pieces bought second hand, altered, or repaired by an unauthorized jeweler will not be accepted for a repair. 

  • We stand by the quality of our craftsmanship. All our jewelry is guaranteed to be free from defects for life.
  • We stand by the quality of our designs and will do our best to perform the necessary repairs fast and efficiently.

Counterfeit pieces will be reported to authorities. All repairs are done promptly, without delay, and with a minimum waiting time. You can send your jewelry to us or bring it in for cleaning, repairs, sizing, or alterations. An appointment is required to drop off an item in person.

We stand by the quality of our designs and will do our best to perform the necessary repairs fast and efficiently.

We always attempt to complete the repair on the same day, regardless of the warranty status. However, to expedite the repair, we recommend an early morning appointment. 

If the repair cannot be completed while you wait, we will keep your piece and notify you when it’s ready. Please do not assume that your repair is fast and straightforward. Sometimes a simple problem is an indication of an issue that needs to be addressed. We will investigate and try to find the real cause of the damage and, if discovered,  we will suggest a solution.

For example, a missing pave stone can be traced to an accidental bump. In such a case, a replacement is a simple, 10-15 minute job. But when the piece is deformed, causing the metal to crack, the repair will take much longer. There will be additional costs associated with the repair.

Please let us know the nature of the problem to be better prepared when you come in. Unfortunately, we cannot provide a precise timeframe until we examine the piece and assess the damage. Same-day repairs are not available on the last day before a weekend, vacation, or holiday.

Any repair that costs over $100 requires the client’s explicit consent. Less expensive repairs are done without confirmation. A client is fully responsible for the cost of the repair. All repairs include complimentary check-up and cleaning.

There is a minimal chance of a complication arising during the repair. However, if it does, the client bears full responsibility for any inadvertent loss or damage. We are not responsible for any monetary loss caused by the repair.

We will notify you immediately once the repair is completed, and the item is cleaned and inspected by our quality control minions. You can call us to schedule a pick-up, or we can ship it to you. The shipping cost is your responsibility. Please call us for additional information.

Alterations and adjustments

An adjustment is a minor modification to improve fit. It is usually done free of charge. Alteration is a significant change beyond the scope of the original design. The cost of each modification is determined individually. Any unauthorized alteration or enhancement of a genuine Leon Mege article will void the warranty and its serial number removed from our register.

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