Guide des tailles

Malheureusement les tailles de doigts ne sont pas référencées de la même manière selon les différents pays du monde et il n'y a pas de moyen mnémotechnique permettant de passer de l'un à l'autre facilement. Concernant les bracelets, les tailles peuvent varier selon les marques, les pays ou les distributeurs sachant qu'ils appliquent parfois leur propre standards sous un format S/M/L. Un grand nombre mesure en centimètres ou en pouce en les ouvrant à plat (1 mm est égal à 0.04 pouce). Les colliers varient par leur longueur qui sont souvent choisies en fonction d'un style ou d'une préférence.

Voici un guide complet des tailles de bagues, bracelets et colliers pour un usage applicable tant aux professionnels qu'aux personnes privées qui souhaiteraient s'offrir un bijou à l'étranger en toute sécurité !

Taille de doigts

​Jewellers measure one's ring size with a finger gauge and rings themselves with a ring sizer. In addition to the use a gauge, the talented London jeweller Shaun Leane also gives the following very useful advice:

"Measure your ring size at the end of the day when fingers are at their largest. Consider the width of the band, a particularly thick band will feel tighter than a thin band so you may want to buy a full size larger than your normal ring size. Ensure that your ring sizer fits comfortably, snug enough so that it will not fall off, but loose enough to slide over your knuckle."

You should also consider the weather when trying on a ring or sizing your finger. Warm weather make the fingers swell and remember that if you a try a ring when you are pregnant, it might be little too large a few months later. Of course you may have it resized then.

Many jewellers nowadays offer printable ring sizers on which one puts one's own ring the drawn size that fit best. One may also try to measure the inner size of the ring with a string and lay it flat on a ruler in order to get the size only to check it on the below chart, however I would recommend to have your finger measured by a professional just to be sure.

Some rings have adjustable sizes and many techniques exists. Some rings are specifically designed for knuckles with arthritis, so that a health issue doesn't get in the way of wearing rings. Lastly keep in mind that sizing works slightly differently whether you are looking for a large ring or a thin band.

Global Ring Sizing Systems

There are several systems ring sizing in use around the world:

In the United States, Canada and Mexico, ring sizes use a numerical measure, for whole and half sizes. An increase of a full ring size is an increase of 0.032 inch (0.8128 mm) in diametre, or roughly 1/10 inch in inside circumference.

In the United Kingdom, Australia, New Zealand, South Africa and Ireland, the ring sizes are defined using letters in alphabetical order, for full and half ring sizes.

In Japan, India, South America, Korea and China, ring sizes are specified using a numerical measure from 1 to 32. There are no half sizes and sizes are not linked to diameter or circumference.

In Italy, Spain, Netherlands, and Switzerland, ring sizes are specified as the circumference minus 40mm. A 50 ISO was a 10 in Switzerland.

In France and Germany each size corresponds to the inside circumference of a ring in millimeters. Size 52, an average classic female size, means the inside circumference is 52 mm.

If you represent a workshop and you are starting to work for a foreign company, I strongly advise you to ask them to send you a finger gauge from the designated country. Use it as a safe guard and control the ring size prior to delivering the piece.

Here is a very detailed size chart you may use for correspondance study between various countries:

 
size-guide.jpg

Bracelet size

Jewellers measure one's wrists with a bracelet gauge and the bracelet itself with a dedicated mandrel but a private person may use a sewing measure. Alternatively one may use a piece of string or ribbon to measure the size and then carefully lay it flat on a ruler.

The fit depends on the type of bracelet (cuff, bangle, chain bracelet, etc.) but also on the client's choice.. Oftentimes, high jewellery bracelet requires the help of a second person to attach it.

Bracelet sizes generally range from baby size to XXL, but in order to be perfectly sure, one should double it by taking the measure, or wrist circumference, properly in centimetres or inches. One may then choose a loose, fitted or tight wear.

Some particularities apply:

For a cuff bracelet, the fact it is open means you have to remember you can slide it directly on your wrist.

For a bangle bracelet with does not have a clasp, remember to measure the width of the hand as well (fingers pressed together and elongated).

Here is a size chart showing the most common bracelet sizes, bearing in mind that they are not representative of all brands and country habits. Please double-check with the retailer or workshop you are about to buy from.

 

Tour de cou

Les harmonies à l'échelle internationale sont encore plus nébuleuses.

En France, on considère le standard de tour de cou de 40 cm pour les chaines de pendentifs. Les joailliers et bijoutiers rajoutent parfois 2 cm de chaine soit une chaine de 42 cm avec un anneau à 40 cm.

Concernant les colliers, on s'attache plutôt au style conféré par les modèles: par exemple, un choker, un pendentif et un sautoir. Néanmoins les standards de longueur peuvent varier d'un fabricant à un autre, d'une marque à une autre et lorsqu'on est acheteur de pièces antiques, d'une époque à une autre.

 

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