All New Sign Ups Get 5% Off
diamond
Apr 18, 2024
Diamond is an "Elemental mineral ". Pure diamond is composed entirely of carbon (C) and is the only single element mineral that can be used as a gemstone. "Diamonds" are formed in the mantle layer
130-200km deep inside the earth . The temperature must reach 900°C to 1300°C and the pressure reaches 45,000 to 60,000 atmospheres before black carbon can be converted into transparent crystals. status, also known as "diamond". During crustal activities such as volcanic eruptions, rocks containing "diamonds" in the mantle may be shattered by crustal movements. The erupted magma is ejected from the surface and cooled instantly, leaving it intact on the surface . Therefore, diamonds are often mined from volcanic rocks, such as Kimberlite and Lamproite. Human understanding of diamonds: The first people to learn about the existence of diamonds were the Indians . According to Indian legend, 3,000 years ago, Indian slaves discovered diamonds weighing more than 100 carats on the beach. Gemmakers in ancient India believed that wearing a diamond with flaws would bring bad luck, while a flawless diamond would bring lifelong happiness, luck and wealth to those with a pure body. Although people now associate diamonds with love, this symbol has only become popular in modern times. The main reason is that diamonds were too rare in the past. It was not until the discovery of diamond mines in Africa in the 19th century that sufficient quantities of diamonds appeared for commercial circulation. Mining History From ancient times until the 18th century, alluvial deposits in India and Borneo were the only known sources of diamonds, with the important Brazilian mine discovered in 1725. Mineral deposits were discovered in South Africa in the second half of the 19th century; mineral deposits in Siberia were discovered in the 1950s; in the 1980s, Australia briefly became the most important diamond producer; in the late 1990s, Canada also began commercialization Diamond mining. Currently important gem-quality diamond producing countries include: Angola, Australia, Botswana, Brazil, Canada, China, Congo, Namibia, Russia, Sierra Leone, South Africa and Tanzania. The color of diamonds: pure white diamonds only contain C element; yellow diamonds contain N element; pink diamonds are caused by the misalignment of carbon atoms; green diamonds are caused by radiation; blue diamonds contain B element. Diamond care: Diamonds are lipophilic , so avoid applying hand cream or using soap when wearing them. Although diamond is hard, its crystalline properties have complete cleavage and may break when struck at a certain angle, so violent knocking should be avoided. Jewelry muskets may oxidize the surface of the diamond or cause damage to the fillings that have been used to optimize the diamond. For diamonds optimized for lead glass filling, avoid the use of ultrasonic cleaners. Diamond Grading Factors Diamond grading is based on four main factors, also known as the “4Cs”. Carat: The weight of a gemstone. Color: The grade, relative whiteness, or rarity and beauty of a color. Clarity: The degree of inclusions and fissures. Cut: The shape and quality of the cut. Diamond Crystal Diamond has a cubic crystal system. The common crystal habit is octahedron. Some more complex crystal shapes such as dodecahedron and triangular lamellar twins called "Macle" can also occur . Triangular pits can sometimes be observed on the crystal planes of the octahedron, also known as "Trigons" . Composition and Type of Diamonds The main component of diamonds is C, which can reach more than 99.95%. The secondary components are N (nitrogen), B (boron), H (hydrogen), and trace elements are Si, Ca, Mg, Mn, Ti, There are more than 50 kinds of Cr, S, inert gases and rare elements. These secondary components determine the type, color and physical properties of diamonds. Type Ia: Carbon (C) atoms are replaced by nitrogen (N) atoms, and N exists as aggregated impurities in the crystal lattice; colorless to deep yellow, most diamonds fall into this category. Type Ib: C atoms are replaced by N atoms, and N appears as a single atom in the crystal lattice; colorless to yellow, brown, canary color, rare. Type IIa: Does not contain N, C atoms are defective due to positional misalignment, and have high thermal conductivity; colorless to brown-pink, very rare. Type IIb: Contains a small amount of "boron" (B) element; color is blue and extremely rare. Optical properties: high refractive index, isotropic
130-200km deep inside the earth . The temperature must reach 900°C to 1300°C and the pressure reaches 45,000 to 60,000 atmospheres before black carbon can be converted into transparent crystals. status, also known as "diamond". During crustal activities such as volcanic eruptions, rocks containing "diamonds" in the mantle may be shattered by crustal movements. The erupted magma is ejected from the surface and cooled instantly, leaving it intact on the surface . Therefore, diamonds are often mined from volcanic rocks, such as Kimberlite and Lamproite. Human understanding of diamonds: The first people to learn about the existence of diamonds were the Indians . According to Indian legend, 3,000 years ago, Indian slaves discovered diamonds weighing more than 100 carats on the beach. Gemmakers in ancient India believed that wearing a diamond with flaws would bring bad luck, while a flawless diamond would bring lifelong happiness, luck and wealth to those with a pure body. Although people now associate diamonds with love, this symbol has only become popular in modern times. The main reason is that diamonds were too rare in the past. It was not until the discovery of diamond mines in Africa in the 19th century that sufficient quantities of diamonds appeared for commercial circulation. Mining History From ancient times until the 18th century, alluvial deposits in India and Borneo were the only known sources of diamonds, with the important Brazilian mine discovered in 1725. Mineral deposits were discovered in South Africa in the second half of the 19th century; mineral deposits in Siberia were discovered in the 1950s; in the 1980s, Australia briefly became the most important diamond producer; in the late 1990s, Canada also began commercialization Diamond mining. Currently important gem-quality diamond producing countries include: Angola, Australia, Botswana, Brazil, Canada, China, Congo, Namibia, Russia, Sierra Leone, South Africa and Tanzania. The color of diamonds: pure white diamonds only contain C element; yellow diamonds contain N element; pink diamonds are caused by the misalignment of carbon atoms; green diamonds are caused by radiation; blue diamonds contain B element. Diamond care: Diamonds are lipophilic , so avoid applying hand cream or using soap when wearing them. Although diamond is hard, its crystalline properties have complete cleavage and may break when struck at a certain angle, so violent knocking should be avoided. Jewelry muskets may oxidize the surface of the diamond or cause damage to the fillings that have been used to optimize the diamond. For diamonds optimized for lead glass filling, avoid the use of ultrasonic cleaners. Diamond Grading Factors Diamond grading is based on four main factors, also known as the “4Cs”. Carat: The weight of a gemstone. Color: The grade, relative whiteness, or rarity and beauty of a color. Clarity: The degree of inclusions and fissures. Cut: The shape and quality of the cut. Diamond Crystal Diamond has a cubic crystal system. The common crystal habit is octahedron. Some more complex crystal shapes such as dodecahedron and triangular lamellar twins called "Macle" can also occur . Triangular pits can sometimes be observed on the crystal planes of the octahedron, also known as "Trigons" . Composition and Type of Diamonds The main component of diamonds is C, which can reach more than 99.95%. The secondary components are N (nitrogen), B (boron), H (hydrogen), and trace elements are Si, Ca, Mg, Mn, Ti, There are more than 50 kinds of Cr, S, inert gases and rare elements. These secondary components determine the type, color and physical properties of diamonds. Type Ia: Carbon (C) atoms are replaced by nitrogen (N) atoms, and N exists as aggregated impurities in the crystal lattice; colorless to deep yellow, most diamonds fall into this category. Type Ib: C atoms are replaced by N atoms, and N appears as a single atom in the crystal lattice; colorless to yellow, brown, canary color, rare. Type IIa: Does not contain N, C atoms are defective due to positional misalignment, and have high thermal conductivity; colorless to brown-pink, very rare. Type IIb: Contains a small amount of "boron" (B) element; color is blue and extremely rare. Optical properties: high refractive index, isotropic
- Company Info
- Feedback
- Customer Reviews
- About Us
- Dropshipping
- FAQ
- User Center
- Forget Password
- My Orders
- Tracking Order
- My Account
- Register
- Payment & Shipping
- Terms And Conditions
- Return Policy
- Shipping Methods
- Payment Methods
- Discount