sterling silver turkish jewelry wholesale
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sterling silver turkish jewelry wholesale
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thailand jewelry wholesale nose rings K gold: The system for determining the content of gold in gold is called "gold". English is "Kar-AT", referred to as "K" for short. So gold is also called "K gold". Because it is too soft to make jewelry with pure gold, it is difficult to make a variety of exquisite styles. Especially when it is inlaid with treasures such as pearls, gems, and emeralds, it is easy to lose. Therefore, a small amount of silver, copper, zinc and other non -ferrous metals should be added to pure gold to enhance strength and toughness. This metal is called gold decoration.
usually referred to as 24K in pure gold, and theoretically 100%gold content is 100%. Therefore, 1K means that the amount of gold contains pure gold is 1/24, about 4.16%. 22K: 22/24 = 0.916, the gold content is 91.6%. 18K: 18/2 =; 0.75, the gold content is 75%, push in order.
gold jewelry wholesale suppliers Choose a good glossy, good handmade, the style of the style, and then see if there is a seal, and then you can buy it with confidence to buy it.
us wholesale jewelry Many people buy gold jewelry to buy them. Teach you to buy the skills correctly.n00:00 / 01: 3270% shortcut keys to describe space: Play / pause ESC: Exit full screen ↑: increase volume 10% ↓: decreases by 10% →: Single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description
pratunam center wholesale jewelry shops The five big tricks of identifying gold and silver jewelry.
. How to identify gold jewelry and brass jewelry. Compared with brass, gold has a strong sense of heavyness. It is oppressed in the palm of the palm, because the proportion of gold is 19.32g / cm3, and the proportion of brass is only 8.9g / cm3. The yellowish the color of the gold, the better the color, and if it is red, the copper impurities are high; if it is white, the silver impurities are high, and the golden color of its gold is low.
. How to identify K gold jewelry and foot gold jewelry. Differential K gold and foot gold are mainly hardened and elastic. The hardness of K gold is harder than the foot gold, the more pure the foot gold, the soft, and the teeth can bite the traces, while the K gold does not work. The K gold ring falls on the ground and has a strong rebellion, and the foot gold ring falls on the ground without this effect.
. How to identify gold -plated jewelry and real gold jewelry. The jewelry made of brass materials, plated a thin layer of gold on the surface, is very low in value because its material is hard and difficult to impersonate gold, but some people sell it as 18K gold. Also under "18kgp". The color of this gold -plated jewelry is different from the color of the real gold, which is obviously reddish, lacks golden colors, and the appearance can be different.
. How to identify nickel jewelry and platinum jewelry. Metal nickel is a material for making one yuan coin. It is white, does not oxidize, and looks like the color of platinum material, but the proportion of the two is different. CM3 is significantly different.
. How to identify silver jewelry and platinum jewelry. Although the color of silver and platinum is similar, it is also easy to identify. The proportion of silver is 10.5g / cm3, only 1/2 of platinum. In addition, the sterling silver is soft and easy to oxidize. It will turn black after a period of time in the air, while the platinum is different, which is harder and does not oxidize.
It also accumulated some simple and easy methods.
(1) The density of gold is large. Generally speaking, for the same volume of metal products, gold products are much heavier, and too light products are too light products. It must be a fake.
(2) The hardness of gold and silver is small, soft, and strong in texture. If metal objects are gently tested on gold and silver products, generally leave the authentic products of dentation, leaving schedules The marks are fakes.
(3) The chemical properties of gold and silver are relatively stable, especially gold, which is not easy to oxidize in the air, while copper and iron products are prone to oxidation and rust. Hydrochloric acid, nitric acid, etc.), the color is unchanged, and the copper products only touch nitric acid, it will lose its gloss. If it is gold, the surface of the surface is easy to fall off.