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Manufacturing of Lab Diamonds: An Overview

Manufacturing of Lab Diamonds

While you must have heard of and even own lab-grown diamonds, have you ever wondered how they are manufactured? 


Lab diamond manufacturing is a fascinating process, almost magical. In this blog, you can read about the manufacturing process and how diamonds are cut and polished and graded. This is your handy crash course in lab grown diamond manufacturing that you can refer to anytime!

 

What are Lab Grown Diamonds?

Defining lab diamonds would be incomplete without mentioning mined diamonds. Unlike mined diamonds that are sourced from the earth, cultured diamonds are manufactured or created in laboratories. However, lab diamonds are real diamonds. They are created through the same processes that form diamonds under the earth.

 

Different Types of Manufactured Diamonds

Lab-grown diamonds are a broad category. There are different types of lab-created gemstones.

Here are some:

 

Lab grown diamonds: Manufacturing Process

There are two lab-grown diamond manufacturing methods: HPHT and CVD. Read more about these processes here:

 

High Pressure High Temperature (HPHT): The HPHT process of creating lab grown diamonds was introduced in the 1950s. This was the first ever method used to create real diamonds in laboratories.

 

In the HPHT process, a good-quality diamond seed is placed inside a chamber along with other materials, such as metals. Next, these materials are made to go through high pressure and temperatures. This process leads to the process of crystallization that forms a lab-grown diamond.
 

Chemical Vapor Deposition (CVD): The CVD process involves filling a chamber with a diamond seed, and gasses hydrogen, oxygen, and carbon. This chamber is then heated to high temperatures, which leads to the precipitation of carbon from the gases that stick to the substrate and crystallize into a lab diamond.

 

Diamond Cutting and Polishing Processes

Whether they are mined diamonds or engineered diamonds, all rough diamonds go through the process of cutting and polishing to take on their final shape and brilliance.

 

Lab Grown Diamond Grading

All diamonds, mined or cultured diamonds, are graded for the diamond 4 Cs

1. Cut: Cut refers to the quality of the diamond’s proportion and arrangement of facets. The cut of a lab diamond gives it its sparkle. The GIA cut grade ranges from ‘Excellent’ to ‘Poor’.

2. Color: Diamond color is graded from D to Z, with D being those that do not have any color or tint, while Z being those that have light color. If you’re looking for fancy color lab grown diamonds, you will find a range of options.

3. Clarity: Clarity of cultured diamonds refers to the absence of inclusions or blemishes. Clarity is graded on the range from FL (flawless), IF (internally flawless), VVS (very very slightly included) VS (very slightly included), SI (slightly included) and I (included).
4. Carat: Carat refers to a diamond’s weight, for example, 1 carat, 2 carat, etc.

 

Wrap up

Manufacturing diamonds is a specialized process. With the growing popularity of lab-grown diamonds, there is a huge demand in the market. And for connoisseurs, it’s essential to know and understand how diamonds are created in laboratories. If you’re looking to buy lab diamonds, you’re in luck with Grown Diamond Corporation’s extensive collection of high-quality lab diamonds.



{"AutoID":139,"DateCreation":"\/Date(1712040872453)\/","DateModified":"\/Date(1712835909980)\/","CreatedBy":null,"ModifiedBy":"Rahul Bohra ","RecordStatus":"A","Title":"Manufacturing of Lab Diamonds: An Overview","SubTitle":null,"Description":"\u003cp dir=\"ltr\"\u003eWhile you must have heard of and even own lab-grown diamonds, have you ever wondered how they are manufactured?\u0026nbsp;\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cbr /\u003e\r\n\u003ca href=\"https://www.growndiamondcorp.com/lab-grown-diamond-process/\"\u003eLab diamond manufacturing\u003c/a\u003e is a fascinating process, almost magical. In this blog, you can read about the manufacturing process and how diamonds are cut and polished and graded. This is your handy crash course in lab grown diamond manufacturing that you can refer to anytime!\u003c/p\u003e\r\n\r\n\u003cp\u003e\u0026nbsp;\u003c/p\u003e\r\n\r\n\u003ch2\u003e\u003cstrong\u003eWhat are Lab Grown Diamonds?\u003c/strong\u003e\u003c/h2\u003e\r\n\r\n\u003cp\u003eDefining lab diamonds would be incomplete without mentioning mined diamonds. Unlike mined diamonds that are sourced from the earth, \u003ca href=\"https://www.growndiamondcorp.com/blog/types-of-lab-grown-diamonds/\"\u003ecultured diamonds\u003c/a\u003e are manufactured or created in laboratories. However, lab diamonds are real diamonds. They are created through the same processes that form diamonds under the earth.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u0026nbsp;\u003c/p\u003e\r\n\r\n\u003ch2\u003e\u003cstrong\u003eDifferent Types of Manufactured Diamonds\u003c/strong\u003e\u003c/h2\u003e\r\n\r\n\u003cp\u003eLab-grown diamonds are a broad category. There are different types of lab-created gemstones.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cstrong\u003eHere are some:\u003c/strong\u003e\u003c/p\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli dir=\"ltr\"\u003e\r\n\t\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eLab Grown Diamonds: \u003c/strong\u003eLab grown diamonds are also known as cultured or \u003ca href=\"https://www.growndiamondcorp.com/blog/why-are-lab-created-diamonds-called-engineered-diamonds/\"\u003eengineered diamonds\u003c/a\u003e, lab diamonds are manufactured in controlled laboratories by stimulating the conditions that form natural diamonds under the Earth.\u003c/p\u003e\r\n\t\u003c/li\u003e\r\n\t\u003cli dir=\"ltr\"\u003e\r\n\t\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eCubic Zirconia: \u003c/strong\u003eMade from zirconium dioxide, cubic zirconia is similar to diamonds but lacks the hardness and brilliance of diamonds. For that reason, it is more affordable compared to lab diamonds.\u003c/p\u003e\r\n\t\u003c/li\u003e\r\n\t\u003cli dir=\"ltr\"\u003e\r\n\t\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eSynthetic Diamonds: \u003c/strong\u003e\u003ca href=\"https://www.growndiamondcorp.com/blog/why-real-synthetic-diamonds-are-cost-effective/\"\u003eSynthetic diamonds\u003c/a\u003e are produced via the same methods as lab diamonds. These diamonds can be used for various industrial applications, such as cutting tools, electronics, etc.\u003c/p\u003e\r\n\t\u003c/li\u003e\r\n\u003c/ul\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u0026nbsp;\u003c/p\u003e\r\n\r\n\u003ch2 dir=\"ltr\"\u003e\u003cstrong\u003eLab grown diamonds: Manufacturing Process\u003c/strong\u003e\u003c/h2\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003eThere are two lab-grown diamond manufacturing methods: HPHT and CVD. Read more about these processes here:\u003c/p\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u0026nbsp;\u003c/p\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eHigh Pressure High Temperature (HPHT):\u003c/strong\u003e The \u003ca href=\"https://www.growndiamondcorp.com/blog/hpht-lab-grown-diamonds-history-process-and-benefits/\"\u003eHPHT process\u003c/a\u003e of creating lab grown diamonds was introduced in the 1950s. This was the first ever method used to create real diamonds in laboratories.\u003c/p\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u0026nbsp;\u003c/p\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003eIn the HPHT process, a good-quality diamond seed is placed inside a chamber along with other materials, such as metals. Next, these materials are made to go through high pressure and temperatures. This process leads to the process of crystallization that forms a lab-grown diamond.\u003cbr /\u003e\r\n\u0026nbsp;\u003c/p\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eChemical Vapor Deposition (CVD):\u003c/strong\u003e The \u003ca href=\"https://www.growndiamondcorp.com/blog/cvd-diamonds-everything-you-need-to-know/\"\u003eCVD process\u003c/a\u003e involves filling a chamber with a diamond seed, and gasses hydrogen, oxygen, and carbon. This chamber is then heated to high temperatures, which leads to the precipitation of carbon from the gases that stick to the substrate and crystallize into a lab diamond.\u003c/p\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u0026nbsp;\u003c/p\u003e\r\n\r\n\u003ch2 dir=\"ltr\"\u003e\u003cstrong\u003eDiamond Cutting and Polishing Processes\u003c/strong\u003e\u003c/h2\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003eWhether they are \u003ca href=\"https://www.growndiamondcorp.com/blog/difference-between-synthetic-and-mined-diamonds/\"\u003emined diamonds\u003c/a\u003e or engineered diamonds, all rough diamonds go through the process of cutting and polishing to take on their final shape and brilliance.\u003c/p\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli dir=\"ltr\"\u003e\r\n\t\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eRough Diamond Assortment: \u003c/strong\u003eThe first step involves segregating diamonds based on shape, size, weight, etc. parameters. At this stage, rough diamonds are also sorted into those that can be broken into multiple pieces and those that can be directly sent for the next steps.\u003c/p\u003e\r\n\t\u003c/li\u003e\r\n\t\u003cli dir=\"ltr\"\u003e\r\n\t\u003cp dir=\"ltr\"\u003e\u003cstrong\u003ePlanning and Marking: \u003c/strong\u003eThe next step is to plan and mark the diamonds\u0026mdash;which ones would be cut and how. The process of planning a \u003ca href=\"https://www.growndiamondcorp.com/blog/7-lies-and-myths-about-lab-grown-diamonds-you-must-know/\"\u003elab-grown diamond\u003c/a\u003e cutting can be manual or involve an automated process that runs on software.\u0026nbsp;\u003c/p\u003e\r\n\t\u003c/li\u003e\r\n\t\u003cli dir=\"ltr\"\u003e\r\n\t\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eCutting and Polishing: \u003c/strong\u003eThis step involves shaping, bruiting, and cutting polishing diamonds. This process can be manual, or laser based. This is the stage at which the rough diamond turns into a cut and polished \u003ca href=\"https://www.growndiamondcorp.com/blog/7-lies-and-myths-about-lab-grown-diamonds-you-must-know/\"\u003elab diamond\u003c/a\u003e into a chosen shape.\u003cstrong\u003e \u003c/strong\u003e\u003c/p\u003e\r\n\t\u003c/li\u003e\r\n\u003c/ul\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u0026nbsp;\u003c/p\u003e\r\n\r\n\u003ch2 dir=\"ltr\"\u003e\u003cstrong\u003eLab Grown Diamond Grading\u003c/strong\u003e\u003c/h2\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eAll diamonds, mined or cultured diamonds, are graded for the \u003ca href=\"https://www.growndiamondcorp.com/blog/the-4cs-of-diamond-grading-all-you-need-to-know/\"\u003ediamond 4 Cs\u003c/a\u003e.\u0026nbsp;\u003c/strong\u003e\u003c/p\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e1. Cut: \u003c/strong\u003eCut refers to the quality of the diamond\u0026rsquo;s proportion and arrangement of facets. The cut of a lab diamond gives it its sparkle. The GIA cut grade ranges from \u0026lsquo;Excellent\u0026rsquo; to \u0026lsquo;Poor\u0026rsquo;.\u003c/p\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e2. Color: \u003c/strong\u003eDiamond color is graded from D to Z, with D being those that do not have any color or tint, while Z being those that have light color. If you\u0026rsquo;re looking for fancy color la\u003ca href=\"https://www.growndiamondcorp.com/blog/colored-lab-grown-diamonds-are-available-in-a-spectrum-of-shades/\"\u003eb grown diamonds\u003c/a\u003e, you will find a range of options.\u003c/p\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e3. Clarity: \u003c/strong\u003eClarity of cultured diamonds refers to the absence of \u003ca href=\"https://www.growndiamondcorp.com/blog/do-lab-grown-diamonds-have-inclusions/\"\u003einclusions\u003c/a\u003e or blemishes. Clarity is graded on the range from FL (flawless), IF (internally flawless), VVS (very very slightly included) VS (very slightly included), SI (slightly included) and I (included).\u003cbr /\u003e\r\n\u003cstrong\u003e4. Carat: \u003c/strong\u003eCarat refers to a diamond\u0026rsquo;s weight, for example, 1 carat, 2 carat, etc.\u003c/p\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003e\u0026nbsp;\u003c/p\u003e\r\n\r\n\u003ch2 dir=\"ltr\"\u003e\u003cstrong\u003eWrap up\u003c/strong\u003e\u003c/h2\u003e\r\n\r\n\u003cp dir=\"ltr\"\u003eManufacturing diamonds is a specialized process. With the growing popularity of lab-grown diamonds, there is a huge demand in the market. And for connoisseurs, it\u0026rsquo;s essential to know and understand how diamonds are created in laboratories. If you\u0026rsquo;re looking to buy lab diamonds, you\u0026rsquo;re in luck with \u003ca href=\"https://www.growndiamondcorp.com\"\u003eGrown Diamond Corporation\u003c/a\u003e\u0026rsquo;s extensive collection of high-quality lab diamonds.\u003c/p\u003e\r\n","FromDate":null,"ToDate":null,"Image_Url":"manufacturing-of-lab-diamonds-an-overview.jpg","Image_Alt":"Manufacturing of Lab Diamonds","KeyWords":null,"MetaDescription":null,"MetaTitle":"Manufacturing of Lab Diamonds: An Overview","CanonicalLink":"https://www.growndiamondcorp.com/blog/manufacturing-of-lab-diamonds-an-overview/","MetaContent":null,"SeqNo":null,"Slug":"manufacturing-of-lab-diamonds-an-overview","GetTitle":"manufacturing-of-lab-diamonds-an-overview","GetImageUrl":"https://docs.growndiamondcorp.com/blog/manufacturing-of-lab-diamonds-an-overview.jpg"}

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