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Round diamond engagement ring in yellow gold resting inside a white calla lily

Thin band engagement rings

Dainty engagement rings on our 1.8mm band, the thinnest width we make in gold or platinum and still strong enough to wear every day. Every ring opens at 1.8mm, and you can switch to 2mm, 2.5mm or 3mm before you order.

We design custom engagement rings

“The ring turned out absolutely beautiful, even better than I imagined.”

Alejandro

18K yellow gold Rosie oval lab-grown diamond or moissanite engagement ring in a cathedral high setting, front view, by Lily Dia Jewellery

Rosie

Oval three stone

from

$1,304

18K yellow gold Zia pear lab-grown diamond or moissanite engagement ring in a cathedral high setting, front view, by Lily Dia Jewellery

Zia

Pear three stone

from

$1,197

We design custom engagement rings

“She helped us create an engagement ring we will cherish forever.”

Jonathon

How thin is a 1.8mm band?

1.8mm is the slimmest band we set an engagement ring on, and slim enough that the centre stone becomes the widest thing on your finger. It keeps enough metal to stay round through years of wear, which a 1.5mm gold band does not, so you get the delicate look without needing the band rebuilt a few years in.

Engagement ring band width comparison from 1.1mm to 3mm by Lily Dia Jewellery

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.

GIA certified diamondsIGI certified diamonds

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.

01

Consultation

Start from one of our designs, bring us one you found elsewhere, or design something new with us.We do it by video call or email, whichever suits you.You work with Brie directly from the first conversation.
02

Unlimited revisions

We change the design as many times as it takes for you to love it.Then we render it in CAD so you can see your exact ring before it is made.Revisions stay unlimited at that stage too.
03

Made by hand

Our master jewellers, setters and polishers build your ring by hand, with quality checks at every step.Every stone comes from a certified premium supplier and is hand checked before it is set.Because we are a boutique studio, you will not find this quality at our prices anywhere in Australia.
04

Insured, fast shipping

Your ring ships fully insured and tracked.It arrives boxed and presented, ready for the moment you have planned.We keep you updated from the first consultation all the way through to the end.

Create your custom ring

We design and craft your dream ring specifically for you. You'll work with Brie to pick your stone, design your setting, and any other details that really make it your own. We can't wait to make your special moment come true.

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.”
BrittanyGoogle review
“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.”
PedroGoogle review
“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!”
JonathonGoogle review
“Had such a great experience! Highly recommend. Brie understood my wants/needs and really delivered. So happy!”
AlexGoogle review
“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.”
AlejandroGoogle review
“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.”
MikeGoogle review
“Brie was amazing. Process was seamless. Ring is stunning. Highly recommend!”
Elavara and KaGoogle review

Thin band engagement ring questions