
Thick band engagement rings
Chunky engagement rings on our 3mm band, the widest we make in gold or platinum, so the band carries as much of the look as the stone. Every ring opens at 3mm, and you can choose 2.5mm or 2mm before you order.

Hailey
4 claw round solitaire
from$1,260

Kendall
Round bezel set solitaire
from$1,511

Leona
Round halo
from$1,575

Milan
Round three stone
from$1,597
We design custom engagement rings
“The ring turned out absolutely beautiful, even better than I imagined.”
Alejandro

Monet
Round solitaire with hidden halo
from$1,475

Ruby
Round and pear three stone
from$1,554

Selena
Round and baguette three stone
from$1,540

Isabella
Oval solitaire
from$1,260

Katy
Oval east-west solitaire
from$1,260
We design custom engagement rings
“She helped us create an engagement ring we will cherish forever.”
Jonathon

Blake
Oval bezel set solitaire
from$1,511

Gabriella
Oval halo
from$1,575

Gia
Oval and round three stone
from$1,597

Olive
Oval and pear three stone
from$1,554

Rosie
Oval three stone
from$1,661

Sophia
Oval solitaire with hidden halo
from$1,475

Celine
Emerald solitaire
from$1,260

Edyn
Emerald east-west solitaire
from$1,260

Karlie
Emerald bezel set solitaire
from$1,511

Ivy
Emerald solitaire with hidden halo
from$1,475

Juniper
Emerald three stone
from$1,590

Cara
Emerald and pear three stone
from$1,554

Josephine
Pear and emerald toi et moi
from$1,260

Gracie
Radiant solitaire
from$1,260

Billie
Radiant east-west solitaire
from$1,260

Viola
Radiant and pear three stone
from$1,554

Zarah
Radiant solitaire with hidden halo
from$1,475

Zendaya
Radiant bezel set solitaire
from$1,511

Lola
Pear halo
from$1,575

Millie
Pear bezel set solitaire
from$1,511

Rhay
Pear solitaire
from$1,260

Zia
Pear three stone
from$1,554

Adele
Elongated cushion solitaire
from$1,260

Mara
Cushion solitaire
from$1,260

Ahri
Cushion solitaire with hidden halo
from$1,475

River
Cushion and pear three stone
from$1,554

Samara
Cushion halo
from$1,575

Margot
Marquise solitaire
from$1,260

Gigi
Marquise bezel set solitaire
from$1,511

Taylor
Marquise solitaire with hidden halo
from$1,475

Ziphora
Marquise halo
from$1,575

Ana
Princess solitaire with hidden halo
from$1,475

Skye
Princess solitaire
from$1,260
How wide is a 3mm band?
3mm is the widest band we make, half as wide again as our standard 2mm, and at that width the band stops framing the stone and becomes part of the look. It carries the most metal of any width, holds its shape through decades of daily wear, and balances a centre stone of 2 carats or more.

Certified stones
LILY DIA uses the highest quality certified stones from only trusted providers. We hand check every stone to make sure it meets our standards.

Compare nearby ring styles
Our approach
We have a very hands-on bespoke process. You'll work with Brie to design and craft your dream ring. We make sure that this experience feels very special and tailored to you.
Consultation
Unlimited revisions
Made by hand
Insured, fast shipping
What couples say
“My boyfriend and I had the best experience at Lily Dia designing my dream engagement ring… My ring is gorgeous, I am blown away.”
“She took time to talk through the options with no pressure at all, and communication was excellent throughout the whole process! A 10/10, would recommend.”
“We cannot recommend Brie enough! She made the whole custom ring process amazing with her expert knowledge, incredible patience and ensuring the ring was perfect!”
“Had such a great experience! Highly recommend. Brie understood my wants/needs and really delivered. So happy!”
“You accompanied me throughout the entire process and were my partners in making my engagement ring come to life… The ring turned out absolutely beautiful, even better than I imagined.”
“Thanks for having so many phone calls to get it right, but you did and it was a great experience… their attention to detail is great and the quality of the ring was so high.”
“Brie was amazing. Process was seamless. Ring is stunning. Highly recommend!”









