Nothing quite right?
Every design here can be changed for you.
Stone, metal, band, setting — designed with you in our King William Street boutique and made to order in four to six weeks.
Book a private viewingMade to order
Yours doesn’t have to be on this page.
Stone, metal, band, setting — designed with you in our King William Street boutique and made to order in four to six weeks.
Book a private viewingCushion lab-grown engagement rings in Adelaide
A cushion is a square or slightly rectangular stone with softened corners and a pillow-like face. It has a softer, more romantic character than a princess or emerald cut, and a long history in antique rings.
Every cushion ring on this page is a Simon Alexander design, made to order around an IGI-certified lab-grown diamond that you choose. The designs are Katie, Grace, Fiona, Abbie, Delta, Casey, Hope, Julia, Kylie, Chloe, Emily, Flora and Jenna.
The range runs from plain solitaires such as Casey, Abbie, Grace, Katie and Fiona to accent-diamond and halo designs such as Hope, Julia, Kylie, Emily and Chloe. Any design can be adjusted, and if the right ring is not here we will design it with you.
Choosing a cushion diamond
Cushions are cut in different facet styles, some with broad flashes of light and some with a finer, sparkling pattern, so two cushions of the same carat can look quite different. Simon’s five shows you real stones with their full IGI grades, so you can compare them side by side. A 1 carat cushion is roughly 5.5 to 6mm across.
How it wears
The rounded corners make a cushion comfortable to wear and easy to protect in a four-claw setting, and it pairs well with a halo.
What it costs
Every price on this page is the finished ring: setting, metal and the lab-grown diamond. See today’s 1 carat prices and today’s 2 carat prices by shape, or compare lab-grown and natural. Natural cushion diamonds come with a GIA certificate; ask us for a shortlist.
Made to order in Adelaide
Each ring is designed in our King William Street boutique, Australian made, and set and hand-finished by our own jewellers. Most take four to six weeks. Come and see the shapes side by side at Level 1, 14 King William Street.

























