Collection: Lab Diamond Engagement Rings

All jewellery pieces sold at Ethica Diamonds are guaranteed to be durable and long lasting in their beauty. We use only the very best quality materials that have been ethically sourced and carefully crafted to create jewellery that is suitable for everyday wear and will remain gorgeous as it exists over the decades.

Lab grown diamonds are just as durable as natural diamonds, as they have the same physical and chemical properties. They are made of pure carbon and have a hardness of 10 on the Mohs scale, which is the highest rating and indicates excellent durability. Lab grown diamonds are resistant to scratches and are able to withstand the daily wear and tear of everyday life, making them a beautiful and reliable option for a durable and long lasting engagement ring.

With the proper care and maintenance, your lab diamond engagement ring will last through the generations and shine with the same radiance it did when you bought it.

Yes! Lab grown diamonds are real diamonds. They have an identical chemical composition and crystal structure as natural diamonds. The only difference is that they are created in a laboratory instead of being formed naturally deep within the Earth's crust. Lab diamonds are typically of a better quality than naturally occurring diamonds since the conditions they are grown under are meticulously controlled to reduce the chance of any impurities forming.

One method of creating lab grown diamonds is through a process called Chemical Vapor Deposition (CVD). In this process, a small seed of diamond is placed in a vacuum chamber. The chamber is then filled with a carbon-rich gas, such as methane. A microwave beam or another energy source breaks down the gas molecules, releasing pure carbon atoms.

These carbon atoms then settle on the diamond seed and gradually form layers of diamond crystals. This process is repeated over several weeks or months, allowing the diamond to grow in size. The result is a high quality diamond that is visually and chemically identical to a natural diamond.

All of the lab diamonds used here at Ethica are grown using the CVD process and hold the highest quality standards as Type IIA, VVS1 clarity, D-F colour gemstones.

CVD grown diamonds are just as real as naturally occuring diamonds but offer a few advantages over them. Firstly, they are vastly more affordable, as the manufacturing process is more controlled and efficient than mining. Secondly, they are more environmentally friendly, as they do not require the destructive mining methods associated with natural diamond extraction. Additionally, CVD diamonds often exhibit higher clarity and colour grades, making them desirable for jewelry and industrial purposes alike.

Overall, the CVD process allows for the production of lab diamonds that are indistinguishable from natural diamonds in terms of their physical and chemical properties.

Lab grown diamonds are at least as, if not more versatile than natural diamonds in what shapes, cuts, and facets they can be made available in.

Here are some examples of a few of the cuts we have available here at Ethica Diamonds in our Lab Diamond Engagement Ring Collection:

Round Brilliant - This cut is the most popular and classic diamond shape, featuring a round outline and brilliant facets that maximise the diamond's sparkle and fire.

Princess - The princess cut is known for its modern and geometric shape, characterised by a square or rectangular outline with brilliant faceting. This cut combines the brilliance of a round diamond with a contemporary shape.

Cushion - The cushion cut has a square or rectangular shape with rounded corners, resembling a pillow or cushion. It has larger facets that create a soft and romantic look, emphasising brilliance and clarity.

Asscher - The Asscher cut is a square-shaped diamond with cropped corners and an elegant step-cut faceting style. This cut has a unique Art Deco inspired design, featuring a smaller table and high crown that showcase its exceptional clarity and facets.

Emerald - The emerald cut features a rectangular or square shape with step-cut facets that create a hall-of-mirrors effect. It highlights a diamond's clarity and colour while offering a sophisticated and timeless appearance.

Marquise - The marquise cut is an elongated and pointed shape resembling a boat or eye shape. It is known for its dramatic flair and ability to make the diamond look larger. The marquise cut maximises carat weight and creates a graceful and elongating effect on the finger.

Oval - The oval cut is an elongated and symmetrical shape with similar brilliance to the round brilliant cut. This cut offers a sleek and elegant look, making the diamond appear larger and creating a flattering effect on the finger.

Pear - The pear-shaped cut is a hybrid of the round and marquise cut, featuring a rounded bottom and a tapering point. It is a versatile and unique shape that offers a combination of brilliance and elongation, creating a teardrop-like appearance.

Radiant - The radiant cut is a square or rectangular shape with trimmed corners and brilliant faceting that creates remarkable sparkle. This cut combines the elegance of an emerald cut with the brilliance of a round brilliant cut, resulting in a dazzling diamond with a beautiful play of light.

Heart - The heart cut is a symbol of love and romance, featuring a distinctive heart-shaped outline. It requires skilled diamond cutting to ensure a well-proportioned shape and a symmetrical appearance. The heart-shaped cut is a popular choice for romantic occasions and jewelry.

Baguette - The baguette cut is a step-cut rectangular shape with clean lines and straight facets. This cut is often used as side stones to complement other diamonds or gemstones in jewelry designs. It provides a sleek and sophisticated look, showcasing the clarity and colour of the diamond. The baguette cut offers a unique and minimalist aesthetic.

In most cases, lab diamond engagement rings can be resized just like any other diamond engagement ring. However, there are some factors that may prevent a ring from being resized. If your ring has an intricate or complex design, it may pose challenges for resizing. For example, rings with intricate engravings, filigree work, or pavé settings may require specialised techniques or tools which are not always available to resize without damaging the design. There are also sizing limitations when it comes to resizing a lab grown diamond engagement ring. Rings can typically be resized by a few sizes up or down. However, extreme changes in size may not be possible, especially if it requires significantly altering the structure of the ring.

For your peace of mind, we offer a complimentary standard resize on all of our engagement rings over £2000 within 30 days of purchase if they turn out to be the wrong size.  We also have a resize service which costs £125, which includes insured postage back to you.

You can read more here:

Resize, Repair & Maintain

However, it is best to make sure that you are ordering the ring in the correct size in the first place. We can send you a free ring sizer in the post which is helpful, but this is only a guide.

You can request one here:

Finger Size Guide

Apart from the limitations that have been mentioned, it is usually perfectly simple to resize you lab diamond engagement ring if needs be.