Global Sterling Silver. What is 925 proof? History of occurrence

Sterling Silver. What is 925 proof? History of occurrence


925 sterling silver: pure precious metal or alloy?

This ques­tion is the most rel­e­vant for those who want to learn how to under­stand expen­sive jew­el­ry. First of all, this knowl­edge is need­ed in order to accu­rate­ly under­stand when pur­chas­ing a bracelet, ring or neck­lace whether the qual­i­ty of the prod­ucts cor­re­sponds to their val­ue. Sec­ond­ly, infor­ma­tion about the main pre­cious met­als and their alloys allows you to avoid buy­ing coun­ter­feit goods.

Perfect Alloy

The puri­ty of sil­ver, as well as the cost of prod­ucts made from it, is deter­mined by the ratio of the pre­cious met­al to the impu­ri­ties con­tained in the alloy. The high­est break­down is 999, but this sil­ver is prac­ti­cal­ly not used to cre­ate jew­el­ry. It is too soft and plas­tic and, there­fore, prod­ucts made from it will quick­ly lose their sophis­ti­cat­ed look.

Attempts to find the ide­al ratio of the pre­cious met­al and impu­ri­ties of var­i­ous ori­gins led to the emer­gence of 925 ster­ling sil­ver. The spec­i­fied fig­ure says that a kilo­gram of an alloy for the pro­duc­tion of jew­el­ry con­tains 925 grams of a noble met­al. The remain­ing 75 grams is cop­per, which increas­es per­for­mance and retains the dec­o­ra­tive val­ue of the alloy.

Pound sterling or more than half a kilo of silver

In an age before inter­na­tion­al stan­dards were set, there were many tech­nolo­gies to make sil­ver rings, brooches and coins more durable. To do this, zinc, plat­inum and oth­er ele­ments were added to the alloy, which were sup­posed to pre­serve the beau­ty and bril­liance of the noble met­al.

In 1215 King Hen­ry of Eng­land II turned to the Ger­man fam­i­ly of jew­el­ers with the sur­name East­er­ling with a request to make sil­ver coins for his coun­try. The high qual­i­ty of the work was duly appre­ci­at­ed by the monarch, and the mon­ey itself was called ster­ling. A pound ster­ling is 0.45359237 kg of 925 sil­ver, which is cur­rent­ly the high­est qual­i­ty stan­dard.

What is silver jewelry?

There are a lot of types of sil­ver pro­cess­ing, which allows you to give each prod­uct a unique and mag­nif­i­cent look. Accord­ing­ly, a gram of 925 sil­ver is not the only indi­ca­tor that deter­mines the final cost of jew­el­ry.

One of the most expen­sive tech­nolo­gies in jew­el­ry art is the coat­ing of sil­ver sur­faces with a thin lay­er of rhodi­um. This met­al allows you to pro­tect any sil­ver prod­ucts from cor­ro­sion and give them a bright white col­or.

Lovers of “aged” sil­ver espe­cial­ly appre­ci­ate the pati­na, which over time forms dur­ing the oxi­da­tion of the met­al. Jew­el­ers have long appre­ci­at­ed the aes­thet­ic advan­tages of such jew­el­ry and are using the tech­nol­o­gy of arti­fi­cial black­en­ing of sil­ver with might and main.

The fil­i­gree work of a jew­el­er con­sists in work­ing with small ele­ments and thin wire made of pre­cious met­als. Usu­al­ly for the man­u­fac­ture of orig­i­nal light, almost airy jew­el­ry, gold and 925 sil­ver are used, the price of which deter­mines the ini­tial cost of pro­duc­tion. How­ev­er, lat­er the cost of such rings and pen­dants can increase sig­nif­i­cant­ly, since you will have to pay extra for the indi­vid­ual painstak­ing work of the mas­ter.


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