
Cathedral Lab-Grown Diamond Engagement Rings
Discover Australia's latest premium cathedral lab-grown diamond engagement rings, custom made specifically for you in our boutique jewellery studio. Use the bespoke ring builder below, or contact us and we can make any ring you have in mind.

Hailey
4 claw round solitaire
from$916

Kendall
round bezel set solitaire
from$1,170

Kaia
round solitaire with 3/4 pavé band
from$1,265

Leona
round halo
from$1,235
We design custom engagement rings
“The ring turned out absolutely beautiful, even better than I imagined.”
Alejandro

Monet
round solitaire with hidden halo
from$1,134

Isabella
oval solitaire
from$916

Katy
oval east-west solitaire
from$916

Blake
oval bezel set solitaire
from$1,170

Frankie
oval solitaire with 3/4 pavé band
from$1,265

Gabriella
oval halo
from$1,235
We design custom engagement rings
“She helped us create an engagement ring we will cherish forever.”
Jonathon

Sophia
oval solitaire with hidden halo
from$1,134

Vienna
oval halo with 2/3 pavé band
from$1,584

Celine
emerald solitaire
from$916

Edyn
emerald east-west solitaire
from$916

Karlie
emerald bezel set solitaire
from$1,170

Ivy
emerald solitaire with hidden halo
from$1,134

Josephine
pear and emerald toi et moi
from$916

Marlee
emerald halo with 2/3 pavé band
from$1,584

Poppy
emerald solitaire with 3/4 pavé band
from$1,265

Gracie
radiant solitaire
from$916

Billie
radiant east-west solitaire
from$916

Bonnie
radiant solitaire with 3/4 pavé band
from$1,265

Zarah
radiant solitaire with hidden halo
from$1,134

Zendaya
radiant bezel set solitaire
from$1,170

Dakota
pear halo with 3/4 pavé band
from$1,584

Lola
pear halo
from$1,235

Millie
pear bezel set solitaire
from$1,170

Paige
pear solitaire with 3/4 pavé band
from$1,265

Rhay
pear solitaire
from$916

Adele
elongated cushion solitaire
from$916

Mara
cushion solitaire
from$916

Ahri
cushion solitaire with hidden halo
from$1,134

Camila
cushion halo with 3/4 pavé band
from$1,584

Samara
cushion halo
from$1,235

Margot
marquise solitaire
from$916

Gigi
marquise bezel set solitaire
from$1,170

Sophie
marquise solitaire with 3/4 pavé band
from$1,265

Taylor
marquise solitaire with hidden halo
from$1,134

Ziphora
marquise halo
from$1,235

Ana
princess solitaire with hidden halo
from$1,134

Skye
princess solitaire
from$916
Certified stones
LILY DIA uses the highest quality certified stones from only trusted providers. We hand check every diamond 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!”







