Lab Diamond Engagement Rings
At Diamonds & Co, we are proud to offer a beautiful selection of lab diamond engagement rings for those who value sustainability without compromising on luxury. Lab-grown diamonds offer the same brilliance and quality as natural diamonds, making them a perfect choice for an ethical yet stunning engagement ring, including our Sienna Halo lab diamond engagement ring. Available in various cuts such as round, princess, and emerald, these rings are set in premium metals like platinum and white gold. Each piece is crafted with the same meticulous attention to detail that defines our entire collection, and you can also choose a classic look with our Vida Solitaire lab diamond engagement ring. With lab diamond engagement rings, you can celebrate your love with both beauty and peace of mind.

Home/Engagement Rings/ diamonds/ Shop All
Filter by:
Stone
Shape
Metal
Price
Sort
Stone
Shape
Metal
Price
Stone Type: lab grown diamond
Clear all
Sort
Tinsley Solitaire Lab Diamond 9k Yellow Gold Engagement Ring
|£56.16
per month
Tinsley Solitaire Lab Diamond 9k Yellow Gold Engagement Ring
|£62.91
per month
Thea Solitaire Lab Diamond 9k Yellow Gold Engagement Ring
|£51.66
per month
Thea Solitaire Lab Diamond 9k Yellow Gold Engagement Ring
|£60.66
per month
Engagement Rings FAQs
What style of engagement rings are most popular?
Solitaire engagement rings remain a timeless favourite - and for good reason. With a single, striking diamond set on a sleek band, this classic style allows the stone to truly shine. Halo engagement rings are also much loved, featuring a delicate circle of smaller diamonds that surround the centre stone, enhancing its brilliance and creating a beautifully eye-catching effect.
How much should you spend on an engagement ring?
While tradition suggests spending up to three months’ salary on an engagement ring, the truth is - there’s no set rule. What matters most is finding a ring that feels right for you, both emotionally and financially.
Which metal is best for engagement rings?
Choosing the best metal for your engagement ring is a personal decision. Yellow gold offers timeless warmth, while rose gold adds a soft, romantic touch. White gold, silver and platinum all have cooler tones that pair beautifully with diamonds. Of these, platinum is the strongest and most durable. Silver is more affordable but prone to tarnishing, while white gold retains its shine with occasional replating.
Can you propose with any type of ring?
Absolutely. The most important part of a proposal is the promise you’re making to each other. Whether it’s a traditional diamond ring or something entirely unique, choose a piece you know they’ll cherish and enjoy wearing every day.
What's the difference between an engagement ring and a wedding ring?
An engagement ring is usually given at the proposal and often features a central gemstone, like a diamond. A wedding ring is exchanged during the ceremony and tends to be a simpler band, designed to complement the engagement ring. Traditionally, both are worn together after the wedding.
How do I know what size ring to buy?
The best way to find the right ring size is to have it measured professionally, but there are simple ways to estimate it at home too. For more guidance, visit our Ring Size Guide or get in touch, we’re always happy to help.
Can an engagement ring be resized?
Yes, most engagement rings can be resized, though it depends on the design, material, and setting. Rings with plain bands are typically easier to adjust, while intricate styles or those with full diamond shoulders may be more limited.
























































































