Platinum
Platinum is a rare and precious metal , symbolized as PT, containing more than 85% platinum, also known as white gold, and the common ones are PT900, PT950, PT990. It is rarer than gold because its output is small and mining it is difficult
Platinum has many desirable properties for making jewelry. It is strong, durable, resistant to corrosion and tarnish, and hypoallergenic. Platinum jewelry has a high purity, usually 95% or more, which gives it a bright white color and a lustrous shine.
Pure Gold
Pure gold refers to a metal that is 99.9% gold, with no other alloys. It can also be referred to as 24kt gold or 999 gold.
Gold is a soft and malleable natural material that does not fade and is hypoallergenic. Gold is more than a precious metal that can be used to craft beautiful and durable jewelry. It is also a valuable asset that can be accumulated and stored for future use.
K Gold
K gold is an alloy formed by fusion of gold and other metals and is a term that refers to the karatage of gold, which is a measure of its purity. The higher the karatage, the more pure the gold is. The most common alloys are 18K, 14K, and 10K gold, which contain 75%, 58.3%, and 41.7% gold respectively.
K gold can be used for jewelry because it has desirable properties such as durability, luster, and resistance to tarnish. K-gold jewelry is characterized by less gold consumption, low cost, and can be formulated into various colors.
Silver
① 999 Sterling Silver
9999 Sterling Silver is also known as fine or pure silver with a millesimal fineness of 99.9%. That means that more than 99.9% contains pure silver, while only a small amount of other materials is being traced.
This kind of silver is characterized by being very soft, easy to deform, easy to oxidize and blacken, and is suitable for making simple jewelry without gems.
② 990 Sterling Silver
The second purity is 990, called pure silver, and the silver content is 90%.
This kind of silver is also very soft, easy to deform, easy to oxidize and turn black, suitable for making simple jewelry without gemstones.
③ 925 Sterling Silver
925 Sterling Silver is an alloy composed of 92.5% silver (Ag) and 7.5% copper (Cu) or other metals.
Fine silver (99.9% pure) is generally too soft for producing wearable everyday jewelry, so other metals are added to give strength and durability while preserving the malleability of pure silver and a high precious metal content.
This kind of silver is characterized by softness and hardness greater than S999 and S990. It is suitable for making more complicated jewelry and will not cause allergies when worn. If it is oxidized and blackened, you can use toothpaste to brush it lightly, and it can be changed back.
Brass
Brass is an alloy of copper and zinc. The proportions of the copper and zinc are varied to yield many different kinds of brass. Basic modern brass is 67% copper and 33% zinc.
It is malleable, wear-resistant, and chemically resistant, and is less expensive than gold and silver. Usually, gold or silver is plated on the surface of copper to make jewelry, and the price depends on the thickness of the plating and the plating process.
Titanium steel
Titanium steel is a particular type of stainless steel. It is a new titanium alloy that has recently made its way into the jewelry industry. It is 316L stainless steel or surgical steel, actually does not contain titanium.
It possesses the hypoallergenic, no cause any allergic reaction.
Titanium steel is stronger than gold or silver and more affordable than traditional jewelry metals. It is widely popular in jewelry industry.
Alloy
An alloy is a metallic substance composed of two or more elements.
It is characterized by its cheap price, but it is easy to fade, and wearing jewelry made of this material is likely to cause allergies.