How do lab-grown diamonds compare to natural diamonds in terms of chemical and physical properties?
Lab-grown diamonds have essentially the same chemical, physical, and optical properties as natural diamonds. They are both made of pure carbon and share the same hardness level and crystalline structure.
Is it possible to visually differentiate between lab-grown diamonds and mined diamonds?
No, it is not possible to visually differentiate between lab-grown and mined diamonds without specialised detection equipment, as they are identical down to the atom.
Can lab-grown diamonds be considered real diamonds?
Yes, lab-grown diamonds are real diamonds. They are classified as such because they possess the same physical, chemical, and optical characteristics as mined diamonds and are not simulant or imitation stones.
What are the methods used to create lab-grown diamonds?
Lab-grown diamonds are created using either High Pressure, High Temperature (HPHT) or Chemical Vapour Deposition (CVD) methods, starting with a diamond seed and mimicking the natural diamond formation conditions.
How are lab-grown diamonds graded, and do they follow the same standards as natural diamonds?
Yes, lab-grown diamonds are graded using the same universally recognised standards known as the Four Cs—Cut, Colour, Clarity, and Carat Weight—that are applied to natural diamonds. The grading assesses the precision of the cut, the hue and intensity of colour, the presence of flaws (clarity), and the diamond's weight measured in carats. Consequently, lab-grown diamonds can be evaluated and compared to natural diamonds on a like-for-like basis. They also come with grading reports from reputable gemological institutes, providing a certified assurance of their quality and verifying their characteristics, much like their natural counterparts.
Are laboratory-grown diamonds accompanied by certifications and grading reports?
Yes, lab-grown diamonds come with independent certifications and grading reports from reputable institutions like the International Gemological Institute (IGI).
How long does it take to grow a lab-grown diamond?
The process of growing a lab-grown diamond typically takes a few weeks to a couple of months, depending on the desired size and quality of the diamond. This is a stark contrast to natural diamonds, which are formed over millions of years.
What are the environmental and ethical implications of lab-grown diamonds versus mined diamonds in the jewellery industry?
While we haven't conducted our own comparison studies, it is said that Lab-grown diamonds present a significantly lower environmental impact compared to mining for natural diamonds. The process of creating lab-grown diamonds generally requires less disruptive energy and does not lead to the same level of ecological disturbance that is characteristic of diamond mining operations. Many producers of lab-grown diamonds also engage in practices to further reduce or offset carbon emissions, enhancing their eco-friendly credentials, things like using solar engery. Ethically, lab-grown diamonds are favoured by many as their production avoids the often contentious issues linked to diamond mining, which can include severe land degradation, ecological damage, and various labour concerns.
How does a cubic zirconia differ from a lab-grown diamond?
Cubic zirconia is a different gemstone altogether, Cubic Ziconias are made from silicon and carbon, whereas lab-grown diamonds are composed solely of carbon. Cubic zirconias are easier to mass produce and tend to scratch and cloud over time, unlike lab-grown diamonds which have spectacular shine fire and sparkle according to a given cut , lab grown diamonds also maintain their clarity, durability.
How does a moissanites differ from a lab-grown diamond?
Moissanites have a completely different atomic structure compared to diamonds. Diamonds are pure carbon, while moissanite is composed of silicon carbide. Consequently, moissanite sparkles differently from a diamond and is not as hard or durable