How Long Does It Take to Make a Diamond? Natural vs. Lab-Grown

Posted by Jewel Heart on

Diamonds have captivated human fascination for centuries, often symbolizing eternity, wealth, and romance. From the glitz and glamour of Hollywood to the depths of the Earth's mantle, diamonds have a storied history that intrigues many. But how long does it actually take to create these precious stones? Whether naturally occurring or lab-grown, the timeline varies significantly. In this blog, we’ll explore the creation process of both natural and lab-grown diamonds, providing a comprehensive understanding of the time and effort involved.

How Long Does It Take to Manufacture a Diamond?

Natural Diamonds:

Natural diamonds form deep within the Earth’s mantle under extreme pressure and temperature. This process can take between 1 billion to 3.3 billion years, representing approximately 25% to 75% of Earth's age. Carbon atoms are subjected to intense conditions and gradually form diamonds. Once formed, volcanic eruptions transport these diamonds closer to the Earth's surface, where they can be mined.

Lab-Grown Diamonds:

Contrary to the lengthy natural process, lab-grown diamonds can be created in a much shorter timeframe. These diamonds are produced using one of two methods: High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD).

  • HPHT Method: 

    This method mimics the natural formation process by applying high pressure and high temperature to carbon material. It takes about a few days to a few weeks to grow multiple diamond crystals, and roughly two weeks to grow a 1-carat diamond.
  • CVD Method:

    In this process, a diamond seed crystal is placed in a sealed chamber filled with carbon-rich gas. The gas is ionized into plasma, causing carbon atoms to deposit onto the seed crystal, forming a diamond. It takes about a month to produce a 1-carat diamond using the CVD method.


How long does it take for Earth to make a diamond?

As mentioned, the natural formation of diamonds takes between 1 billion to 3.3 billion years under the Earth’s mantle, making them some of the oldest and most fascinating gemstones.

How long does it take to make a lab-grown diamond?

Lab-grown diamonds take approximately 6 to 10 weeks to create, depending on the method used. HPHT diamonds can take a few days to a few weeks, while CVD diamonds typically take about a month.

How long does it take to turn a rock into a diamond?

For natural diamonds, the transformation of carbon into diamonds under the Earth's surface takes billions of years. In a lab setting, carbon material can be turned into a diamond in a matter of weeks using HPHT or CVD methods.

How big of a diamond can you get for $1000?

The size of a diamond you can get for $1000 varies based on factors like cut, color, clarity, and whether it is natural or lab-grown. Typically, you can expect to get a smaller natural diamond (around 0.3 to 0.5 carats) or a larger lab-grown diamond (approximately 0.5 to 1 carat) for this price range.

Pros and Cons of Lab-Grown Diamonds


  1. Ethical Sourcing:

    Lab-grown diamonds eliminate concerns about conflict diamonds, ensuring they are ethically sourced.
  2. Cost-Effective:

    These diamonds are generally 20-30% cheaper than their natural counterparts.
  3. Environmentally Friendly:

    Producing lab-grown diamonds has a lower environmental impact compared to mining natural diamonds.
  4. Availability of Colors:

    Lab-grown diamonds can be produced in various colors at a lower cost than natural colored diamonds.


  1. Resale Value:

    Lab-grown diamonds typically have a lower resale value compared to natural diamonds.
  2. Perceived Value:

    Some people value the rarity and history associated with natural diamonds more than lab-grown alternatives.

When Did Lab-Grown Diamonds Become Popular?

Lab-grown diamonds began gaining popularity in the early 21st century as technology advanced and consumers became more aware of ethical and environmental issues associated with diamond mining. The appeal of affordable, ethically-sourced, and eco-friendly diamonds has driven their increased adoption in the jewelry market.

Also Read about :  

Ethically Sourced Gold Jewelry: Setting a Standard for Responsibility


The time it takes to make a diamond varies greatly between natural and lab-grown methods. While natural diamonds require billions of years to form under extreme conditions within the Earth's mantle, lab-grown diamonds can be produced in a matter of weeks using advanced technological methods. Both types of diamonds have their own unique appeal, and the choice between them often comes down to personal preference, ethical considerations, and budget.


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