Simon Alexander — diamantaire
Some rings are bought. Yours is made.
Where would yours begin?
The diamond, first
Bespoke engagement rings, designed in Adelaide
Every ring is designed around the diamond you choose — natural or lab-grown, certified either way. We'll tell you when the cheaper stone is the better stone.
Begin your designSimon’s five
Choose the exact diamond for your ring
On every lab-grown ring, Simon’s published standard — D to G colour, VS2 to VVS1 clarity, excellent cut and polish, IGI certified — selects five diamonds from those available today, from the most affordable to the finest. Turn each one in 360°, choose yours, and reserve it online. Simon confirms your stone and its certificate personally before it is set.
See the lab-grown ringsMost loved
Most loved
The house
Designed in our boutique, finished at our bench
Every ring is designed in our King William Street boutique — Australian made, set and hand-finished around the diamond you choose.
Design a ring of your ownThe named designs
Meet June
A round brilliant raised on six fine claws so light reaches the diamond from every angle. Made to order in gold or platinum, around the stone you choose — natural or lab-grown.
See June
Start with a shape
Start with a shape
Choose a cut — every design can be made around the diamond you choose.
A selection
The collection
In their words
“They were knowledgeable, patient, and genuinely helpful in finding the perfect ring.”
Will J. · engagement ring“8 years later my rings are still going strong and I still love them!!”
Lauren B. · after her yearly check“My husband had never bought jewellery before and they made him feel so comfortable.”
Amber R.
The boutique
Level 1, 14 King William Street
Walk in during opening hours, or reserve an hour with Simon: loupe in hand, the diamonds in front of you, no pressure.
Book a private viewing