Global What are the tests of gold > How to find out what the test of gold is

What are the tests of gold > How to find out what the test of gold is


One of the dilem­mas that peo­ple often face when buy­ing jew­el­ry is the choice of gold. The most pop­u­lar tests are 333 and 585. There are also prod­ucts with a test of 750 on the mar­ket. What are the tests of gold, what is the dif­fer­ence between them and how to choose real­ly high-qual­i­ty prod­ucts — we will pro­vide such infor­ma­tion in this arti­cle.

Gold proof and ligature

What are the samples of gold?

The sam­ple shows the con­tent of pure gold in the alloy, that is, how many units of mass of the pre­cious met­al per 1000 units of the mass of the alloy. Gold itself is a very soft mate­r­i­al, there­fore, to increase its strength and sta­bil­i­ty, I add oth­er met­als — the so-called impu­ri­ties.

The term “gold assay” was intro­duced to stan­dard­ize the char­ac­ter­is­tics of prod­ucts con­tain­ing pre­cious met­als. The assay cham­ber checks the con­tent of pre­cious met­al in this prod­uct (in a wed­ding ring or ear­rings) and puts a stamp on this prod­uct. It indi­cates the type of pre­cious met­al and its sam­ple.

The high­er the assay, the more gold in the prod­uct. The price of gold jew­el­ry large­ly depends on the type of gold.

Among gold jew­el­ry, the most pop­u­lar is the sam­ple of the 585th test, from which engage­ment rings, bracelets and neck­laces are most often made. Accord­ing to jew­el­ers, gold grade 585, i.e. 14 carats, is the best com­pro­mise between dura­bil­i­ty and nobil­i­ty of the prod­uct. 750 or 916 jew­el­ry will have more pure gold, but it is very soft, so such jew­el­ry will be prone to scratch­es or dam­age. The high­est qual­i­ty 999 gold is used exclu­sive­ly for the pro­duc­tion of invest­ment prod­ucts, such as bars and coins, which are pack­aged in a spe­cial way that pro­tects them from dam­age.

For a per­son who does not deal with jew­el­ry every day, it is dif­fi­cult to dis­tin­guish 333 gold jew­el­ry from 585 fine jew­el­ry. How­ev­er, the dif­fer­ence lies in the cost. Very often, buy­ers com­pare the prices of jew­el­ry from dif­fer­ent man­u­fac­tur­ers, look at the shape, beau­ty of the mod­el or the method of weav­ing. But few peo­ple know that jew­el­ry with the same appear­ance is pro­duced with dif­fer­ent cal­ibers.

What are the types of gold samples?

The most pop­u­lar in the world is the 585th sam­ple, which is main­ly used for the man­u­fac­ture of wed­ding rings. It is con­sid­ered an ide­al com­pro­mise between the val­ue of the prod­uct and its dura­bil­i­ty.

750 — is more noble due to the puri­ty of the met­al, how­ev­er, due to the soft­ness of gold, it may turn out that after a short peri­od of use, deep scratch­es or bends will appear on the prod­uct.

333 is a good solu­tion for peo­ple who don’t want to spend too much mon­ey on jew­el­ry. They are visu­al­ly no dif­fer­ent from prod­ucts of high­er qual­i­ty and their price should be much low­er, but stains from them are very dif­fi­cult to remove.

Anoth­er mea­sure that is used to find out what type of gold is karat (denot­ed by kt or ct). It is a unit of mass used in jew­el­ry to indi­cate the size of the stones, as well as for the puri­ty of the gold in the alloy. In Europe, this met­ric sys­tem is not very pop­u­lar. But in the Unit­ed States, this is the main and often used indi­ca­tor. 1 carat is 1/24 of the gold con­tent in the alloy. This means that 24-carat is pure gold cor­re­spond­ing to the 999th sam­ple. Below we present how the mea­sure­ment in carats cor­re­lates with the pre­vi­ous­ly list­ed sam­ples in per­cent­ages:

What is the assay of gold in Ukraine?

In Ukraine, the State Assay Inspec­tion is respon­si­ble for the assay of gold on jew­el­ry. Accord­ing to the stan­dard, every man­u­fac­tur­er or importer must mark gold prod­ucts weigh­ing more than 1 gram.

Acces­sories with the most sat­u­rat­ed shade of yel­low are cre­at­ed from gold of 750 proof with a val­ue of 18 carats. This gold is soft­er and pli­able. Most often, this alloy is used to cre­ate cus­tom jew­el­ry with stone inserts, espe­cial­ly if a dia­mond is used.

The most pop­u­lar gold is 14 karat 585 proof. This alloy con­tains more than half of the gold itself. It is quite plas­tic, elas­tic and allows you to play with addi­tives of oth­er met­als, cre­at­ing dif­fer­ent shades — from red to light yel­low. They do not affect the noble prop­er­ties of the met­al itself, but make it hard and more resis­tant to abra­sion.

The low­est grade of 333 is found in 8 carat gold, which is used to make the most frag­ile jew­el­ry. The clasps of such chains, bracelets and ear­rings can quick­ly break or fall apart. Due to the large num­ber of impu­ri­ties of oth­er met­als, prod­ucts of this sam­ple often stain the skin in a dark col­or and cause an aller­gic reac­tion. This is due to a large num­ber of impu­ri­ties. They react with cos­met­ics or with com­pounds con­tained in our sweat (most often it is sul­fur), which caus­es oxi­da­tion, i.e. dark­en­ing of the met­al.

What color is gold?

The col­or of the ring is affect­ed by the admix­ture of oth­er met­als that are added to the alloy dur­ing the pro­duc­tion process. How to find out what the test of gold is? Pay atten­tion to its shade. The low­er the sam­ple, the more intense the col­or of the alloy­ing addi­tive in the alloy.

  • Yel­low gold is a clas­sic shade of this met­al, which con­sists of gold, sil­ver and cop­per. Tra­di­tion­al­ists and min­i­mal­ists like this col­or. Yel­low gold wed­ding rings are rel­a­tive­ly durable and at the same time very aes­thet­ic. If your loved one choos­es gold acces­sories the most, give him a clas­sic yel­low gold ring. Yel­low gold suits women with dark­er skin.

  • White — con­tains an ele­ment such as nick­el or pal­la­di­um. Because of the aller­genic effect of the for­mer, pal­la­di­um is main­ly used. To strength­en it, a rhodi­um coat­ing is applied. Per­fect for fans of min­i­mal­ism, which will delight with its nobil­i­ty. If your part­ner wears sil­ver jew­el­ry every day, a white gold ring should match his style. Per­fect­ly com­bined with light skin and light hair. White gold with an admix­ture of pal­la­di­um has a beau­ti­ful rich plat­inum col­or. Due to the fact that it is a pre­cious met­al from the plat­inum group, it does not cause aller­gies, and gold with pal­la­di­um is 10.5% heav­ier than yel­low or red. Sol­id pal­la­di­um gold rings are con­sid­ered sol­id.

  • Pink — made from an alloy of gold with pal­la­di­um and zinc or cop­per. It is often called “Russ­ian”. If the amount of sil­ver in the alloy increas­es due to cop­per, the red col­or acquires a del­i­cate pink shade. Extreme­ly attrac­tive and fem­i­nine, this del­i­cate shade of pink and red will empha­size the beau­ty of the cho­sen one. It attracts the atten­tion of fans of vin­tage jew­el­ry, which are extra­or­di­nar­i­ly suit­able for jew­el­ry art. It har­mo­nizes per­fect­ly with pre­cious stones.

  • Red — a com­bi­na­tion of yel­low gold with an admix­ture of cop­per and sil­ver, which caus­es a change in col­or. The more cop­per in the alloy, the more intense its shade will be. Red gold has the same weight and price as yel­low gold.

  • Blue — cre­at­ed by adding an impu­ri­ty of iron, nick­el or cobalt.

  • Pur­ple and dark pur­ple — formed by adding alu­minum.

  • Black — made with the addi­tion of car­bon, rhodi­um or ruthe­ni­um.

How­ev­er, the col­or of the dec­o­ra­tion does not deter­mine the puri­ty of the met­al, it is only a des­ig­na­tion of its addi­tives. Regard­less of the col­or of the prod­uct, the stamp is a manda­to­ry mark­ing that shows the qual­i­ty of this gold.

The choice is yours — read the Sil­vers online store cat­a­log and place an order!


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