Lab-grown diamonds are available in a range of colours, including white, yellow, pink,
blue, green, and even black. However, white lab-grown diamonds (also known as
colourless diamonds) are the most popular among consumers, particularly for
engagement rings and other bridal jewellery. Lab grown engagement rings still
require a lot of research and time to pick.

Colourless lab-grown diamonds are the most similar in appearance to natural
diamonds and are often graded on the same scale used for natural diamonds, based
on their lack of colour. The most desirable colour grade for colourless diamonds is D
(completely colourless), followed by E and F (nearly colourless).
Yellow and pink lab-grown diamonds are also popular, particularly for fashion
jewellery and other non-bridal pieces. Yellow lab-grown diamonds can range from
light yellow to intense yellow, while pink lab-grown diamonds can range from pale
pink to vivid pink.

Blue and green lab-grown diamonds are rarer and more expensive than white, yellow,
and pink lab-grown diamonds. These diamonds are often treated with a process
called irradiation to enhance their colour, and they can range from pale blue or green
to intense blue or green.

Black lab-grown diamonds, also known as carbonado diamonds, are opaque and
used mostly for industrial purposes, rather than jewellery.
Overall, the popularity of different colours of lab-grown diamonds varies depending
on the market and consumer preferences but you may opt for a particular setting
instead to help make a statement with your engagement ring.
There are many different setting types for an engagement ring, each with its own
unique style and characteristics. Here are some of the most popular setting types:

1. Prong setting: This is the most common setting type, where the diamond is
   held in place by small metal prongs that grip the stone from the sides. Prong
   settings allow the diamond to catch and reflect the most light, making it
   appear more brilliant and sparkly.
2. Bezel setting: In a bezel setting, the diamond is surrounded by a metal rim that
   holds it in place. This setting is great for protecting the diamond from damage
   and creating a modern, sleek look.
3. Halo setting: A halo setting features a centre diamond surrounded by a ring of
   smaller diamonds, which create a halo effect around the centre stone. This
   setting can make the centre diamond appear larger and add extra sparkle to
   the ring.
4. Channel setting: In a channel setting, the diamonds are set flush into a metal
   channel that runs along the band of the ring. This setting is great for a more
   minimalist look, as the diamonds are less prominent but still add a touch of
   sparkle.
5. Pave setting: A pave setting features many small diamonds set closely
   together on the band of the ring, creating a continuous line of sparkle. This
   setting is great for adding extra sparkle to the ring and can complement a
   variety of centre diamond shapes.
6. Tension setting: In a tension setting, the diamond appears to be suspended in
   mid-air, held in place by the tension of the metal band. This setting creates a
   modern, minimalist look and can showcase the diamond’s brilliance and
   beauty.
   There are many other setting types available as well, so it’s important to choose a
   setting that matches your personal style and preferences, as well as the diamond’s
   shape and size.