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$1,229
Kendall
Round bezel set solitaire
from$1,473
Leona
Round halo
from$1,536
Milan
Round three stone
from$1,557
We design custom engagement rings
“The ring turned out absolutely beautiful, even better than I imagined.”
Alejandro
Monet
Round solitaire with hidden halo
from$1,438
Ruby
Round and pear three stone
from$1,515
Selena
Round and baguette three stone
from$1,501
Isabella
Oval solitaire
from$1,229
Katy
Oval east-west solitaire
from$1,229
We design custom engagement rings
“She helped us create an engagement ring we will cherish forever.”
Jonathon
Blake
Oval bezel set solitaire
from$1,473
Gabriella
Oval halo
from$1,536
Gia
Oval and round three stone
from$1,557
Olive
Oval and pear three stone
from$1,515
Rosie
Oval three stone
from$1,620
Sophia
Oval solitaire with hidden halo
from$1,438
Celine
Emerald solitaire
from$1,229
Edyn
Emerald east-west solitaire
from$1,229
Karlie
Emerald bezel set solitaire
from$1,473
Ivy
Emerald solitaire with hidden halo
from$1,438
Juniper
Emerald three stone
from$1,550
Cara
Emerald and pear three stone
from$1,515
Josephine
Pear and emerald toi et moi
from$1,229
Gracie
Radiant solitaire
from$1,229
Billie
Radiant east-west solitaire
from$1,229
Viola
Radiant and pear three stone
from$1,515
Zarah
Radiant solitaire with hidden halo
from$1,438
Zendaya
Radiant bezel set solitaire
from$1,473
Lola
Pear halo
from$1,536
Millie
Pear bezel set solitaire
from$1,473
Rhay
Pear solitaire
from$1,229
Zia
Pear three stone
from$1,515
Adele
Elongated cushion solitaire
from$1,229
Mara
Cushion solitaire
from$1,229
Ahri
Cushion solitaire with hidden halo
from$1,438
River
Cushion and pear three stone
from$1,515
Samara
Cushion halo
from$1,536
Margot
Marquise solitaire
from$1,229
Gigi
Marquise bezel set solitaire
from$1,473
Taylor
Marquise solitaire with hidden halo
from$1,438
Ziphora
Marquise halo
from$1,536
Ana
Princess solitaire with hidden halo
from$1,438
Skye
Princess solitaire
from$1,229
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 lab-grown diamonds
Our lab-grown diamonds come with an IGI grading report. GIA-graded diamonds are available on request. We check every stone before it is set. Moissanite is a different gemstone, so this grading applies only to our lab-grown diamonds.
Learn about diamond certification
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 to order
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!”
