{"id":528713,"date":"2023-03-30T13:09:26","date_gmt":"2023-03-30T02:09:26","guid":{"rendered":"https:\/\/www.australiandiamondbrokers.com\/blog\/?p=528713"},"modified":"2023-03-30T13:09:43","modified_gmt":"2023-03-30T02:09:43","slug":"how-are-coloured-lab-grown-diamonds-made","status":"publish","type":"post","link":"https:\/\/www.australiandiamondbrokers.com.au\/blog\/how-are-coloured-lab-grown-diamonds-made\/","title":{"rendered":"How are coloured lab-grown diamonds made?"},"content":{"rendered":"

\"Process

Lab-grown diamonds are real diamonds but differ from mined diamonds in their origin. Coloured lab-grown diamonds are a revolutionary new option for those seeking something special in jewellery. There is a science behind the production process to create these beautiful <\/span>gemstones<\/span><\/a>. So let’s take a look at how <\/span>lab-grown diamonds<\/span><\/a> are created.<\/span><\/p>\n

What are coloured lab grown diamonds?<\/span><\/h2>\n

Coloured lab grown diamonds are created<\/span><\/a> using a process called chemical vapour deposition (CVD). A small seed crystal is placed in a chamber, then exposed to a plasma of carbon atoms. The carbon atoms attach themselves to the surface of the diamond, slowly building up its size and altering its colour.<\/span><\/p>\n

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This process can create diamonds in various colours, from traditional yellow and white to more unusual shades like blue, pink, and green. Coloured lab grown diamonds typically have fewer impurities than their natural counterparts, giving them a higher <\/span>clarity<\/span><\/a> rating.<\/span><\/p>\n

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While coloured diamonds are often more expensive than white diamonds, lab grown coloured diamonds provide a more affordable alternative. They also offer the same durability and scratch resistance as natural diamonds, making them an excellent choice for <\/span>Engagement Rings<\/span><\/a> and other fine jewellery.<\/span><\/p>\n

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The difference between lab-grown and mined diamonds<\/span><\/h2>\n

Two main types of diamonds are mined from the earth and grown in a laboratory. Both have the same physical and chemical properties, but some significant differences exist between them.<\/span><\/p>\n

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Mined diamonds are formed over millions of years deep within the Earth’s crust. They are brought to the surface by volcanic eruptions and then extracted from mines. Because they have been created by nature, mined diamonds are more expensive than lab-grown diamonds.<\/span><\/p>\n

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Lab-grown diamonds are created<\/span><\/a> in a controlled environment using advanced technology. They take a fraction of the time to grow compared to mined diamonds, and their cost is much lower. Because they can be produced on demand, lab-grown diamonds offer more flexibility for jewellers and buyers alike.<\/span><\/p>\n

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So, which type of diamond is better? It depends on what you’re looking for. If you want a diamond with a unique history, then a mined diamond is the way to go. But if you’re looking for a beautiful diamond at a <\/span>great price<\/span><\/a>, then a lab-grown diamond is perfect.<\/span><\/p>\n

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The Production Process for Lab Grown Diamonds\u00a0<\/b><\/p>\n

Coloured lab grown diamonds are created in a laboratory setting using either Chemical Vapor Deposition (CVD) or High-Pressure High Temperature (HPHT). With CVD, carbon-rich gases are broken down into individual atoms and then placed onto a diamond seed. This process is repeated until the desired size of a diamond is achieved. HPHT creates an environment similar to Earth’s, where pressure and temperature are increased over time to complete the natural diamond formation.\u00a0<\/span><\/p>\n

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Once the diamond has formed, it is cut and polished with lasers by highly trained gemologists specialising in diamonds. The gemologist will pay close attention to the diamond’s symmetry, polish, proportions, and other factors to ensure that each stone has maximum brilliance and fire. After polishing, the stones are graded according to the standard 4Cs – <\/span>colour<\/span><\/a>, clarity, <\/span>cut<\/span><\/a>, and <\/span>carat<\/span><\/a> weight – just like mined diamonds.\u00a0\u00a0<\/span><\/p>\n

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The HPHT Process for Lab Grown Diamonds<\/span><\/h2>\n

High pressure, high temperature (HPHT) is the process used to create lab grown diamonds. This process begins with a small piece of carbon and is placed in a chamber subject to high temperatures and pressures, which causes it to form a diamond.<\/span><\/p>\n

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The HPHT process is used to create both rough and polished diamonds. Rough diamonds are made by placing the carbon in a chamber with a metal catalyst that speeds up the diamond-forming process. The resulting diamonds are then cut and polished to create finished gems.<\/span><\/p>\n

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The HPHT process can create diamonds in various colours, including blue, green, yellow, orange, red, and pink. Lab-grown diamonds are also available in a range of sizes and shapes.<\/span><\/p>\n

The CVD Process for Lab Grown Diamonds<\/span><\/h2>\n

The CVD process for lab grown diamonds is a multi-step process that begins with creating a carbon-containing gas. This gas is then introduced into a chamber where it is exposed to a substrate, usually silicon. The substrate is heated to a very high temperature, causing the gas to decompose and deposit carbon onto the surface of the substrate.<\/span><\/p>\n

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Once the carbon has been deposited onto the substrate, it is allowed to cool and then removed from the chamber. The next step is to remove any impurities from the carbon, which can be done using various methods, including chemical etching or laser ablation.<\/span><\/p>\n

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Once the carbon has been purified, it is then placed in another chamber known as a growth reactor. In this chamber, the carbon is exposed to a plasma field which causes it to break down into its component atoms. These atoms then recombine on the surface of the substrate to form diamond crystals.<\/span><\/p>\n

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The final CVD process step is removing the diamonds from the substrate. This can be done using either mechanical or chemical methods. The diamonds are then ready to be cut and polished into finished gemstones.<\/span><\/p>\n

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Why are coloured lab grown diamonds a popular choice?<\/span><\/h2>\n

Coloured lab-grown diamonds are a popular choice for many reasons:<\/span><\/p>\n

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  1. They are much more affordable than natural diamonds.<\/span><\/li>\n
  2. They can be created in many colours, so you can find the perfect diamond to match your style.<\/span><\/li>\n
  3. They are environmentally friendly because they are not mined from the earth.<\/span><\/li>\n
  4. They have excellent clarity and quality, which means they will last a lifetime.<\/span><\/li>\n<\/ol>\n

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    How to care for coloured lab-grown diamonds<\/span><\/h2>\n

    When caring for your coloured lab grown diamonds, the most important thing to remember is that these stones are just as durable as natural diamonds. With proper care, your diamonds will last a lifetime.<\/span><\/p>\n

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    Here are a few tips on how to care for your coloured lab-grown diamonds:<\/span><\/p>\n