Cathedral Lab-Grown Diamond Engagement Rings
Discover Australia's latest premium cathedral lab-grown diamond engagement rings, made to order for you. 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$884
Kendall
Round bezel set solitaire
from$1,129
Kaia
Round solitaire with 3/4 pavé band
from$1,220
Leona
Round halo
from$1,192
We design custom engagement rings
“The ring turned out absolutely beautiful, even better than I imagined.”
Alejandro
Monet
Round solitaire with hidden halo
from$1,094
Isabella
Oval solitaire
from$884
Katy
Oval east-west solitaire
from$884
Blake
Oval bezel set solitaire
from$1,129
Frankie
Oval solitaire with 3/4 pavé band
from$1,220
Gabriella
Oval halo
from$1,192
We design custom engagement rings
“She helped us create an engagement ring we will cherish forever.”
Jonathon
Sophia
Oval solitaire with hidden halo
from$1,094
Vienna
Oval halo with 2/3 pavé band
from$1,529
Celine
Emerald solitaire
from$884
Edyn
Emerald east-west solitaire
from$884
Karlie
Emerald bezel set solitaire
from$1,129
Ivy
Emerald solitaire with hidden halo
from$1,094
Josephine
Pear and emerald toi et moi
from$884
Marlee
Emerald halo with 2/3 pavé band
from$1,529
Poppy
Emerald solitaire with 3/4 pavé band
from$1,220
Gracie
Radiant solitaire
from$884
Billie
Radiant east-west solitaire
from$884
Bonnie
Radiant solitaire with 3/4 pavé band
from$1,220
Zarah
Radiant solitaire with hidden halo
from$1,094
Zendaya
Radiant bezel set solitaire
from$1,129
Dakota
Pear halo with 3/4 pavé band
from$1,529
Lola
Pear halo
from$1,192
Millie
Pear bezel set solitaire
from$1,129
Paige
Pear solitaire with 3/4 pavé band
from$1,220
Rhay
Pear solitaire
from$884
Adele
Elongated cushion solitaire
from$884
Mara
Cushion solitaire
from$884
Ahri
Cushion solitaire with hidden halo
from$1,094
Camila
Cushion halo with 3/4 pavé band
from$1,529
Samara
Cushion halo
from$1,192
Margot
Marquise solitaire
from$884
Gigi
Marquise bezel set solitaire
from$1,129
Sophie
Marquise solitaire with 3/4 pavé band
from$1,220
Taylor
Marquise solitaire with hidden halo
from$1,094
Ziphora
Marquise halo
from$1,192
Ana
Princess solitaire with hidden halo
from$1,094
Skye
Princess solitaire
from$884
Certified lab-grown diamonds
Our lab-grown diamonds come with an IGI grading report. GIA-graded diamonds are available on request. We check every diamond before it is set.
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!”
