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Engagement Ring·Made in Australia

Alexa - Unique Halo Round Diamond Engagement Ring

★★★★★ ·Hand-finished ·Lifetime warranty
From $3,219 AUD

Currently configured: 18ct Rose Gold · Natural pavé

Hand-finished in our Australian workshop. Choose your metal, your pavé diamond type, your centre stone shape and your ring size below. Your centre diamond is chosen at Step 2. Read the full story ↓

1
Choose your metal
18ct Rose Gold
How to choose your metal

Every option is hand-finished in our Australian workshop. The difference comes down to purity, weight and longevity.

  • 950 platinum · 95% pure · Naturally white and hypoallergenic. Never needs plating. The densest metal we work with, so it feels heaviest on the hand. Most enduring choice for daily wear.
  • 18ct gold · 75% pure gold · The traditional standard for fine Australian jewellery. Richer colour, heftier feel. Our recommendation for engagement rings and heirloom pieces.
  • 14ct gold · 58% pure gold · Slightly harder alloy than 18ct, priced a step below. A practical middle ground when durability matters as much as purity.
  • 9ct gold · 37.5% pure gold · The hardest gold in the range and the most affordable. Ideal for everyday chains, pendants and pieces that take heavier knocks.

On colour

  • Yellow gold deepens naturally with age and needs no plating.
  • White gold is rhodium-plated for its bright finish. Re-plate every 2 to 3 years at our workshop.
  • Rose gold deepens slightly with wear. No plating needed.

Which to pick if...

  • Wedding ring worn daily: 950 platinum
  • Engagement ring: 18ct gold, or platinum if you want maximum enduring wear
  • Everyday chain or pendant: 9ct for durability, 18ct for finer finish
  • Sensitive skin: platinum or high-karat yellow gold (avoid rhodium-plated white gold if you react to nickel; some rose gold alloys can react to copper sensitivity)
14ct
18ct
2
Choose your pavé diamonds
Natural
Natural vs Lab
Natural and lab-grown, both are real diamonds.

Same crystal structure, same hardness, same brilliance. The difference is origin.

  • Natural diamonds, formed deep in the earth over billions of years. Rare, and priced for it.
  • Lab-grown diamonds, grown above ground in months, chemically identical. Often lets you fit a larger or higher-grade stone within the same budget.
iThis choice applies to the 16 - 20 pavé diamonds on this setting (0.15 - 0.20ct total). Your centre diamond, natural or lab, is chosen separately in Step 2.
3
Choose centre diamond shape
Round
Recommended centre carat for Round: 0.32.1ct
4
Choose your ring size
Not selected yet

Standard pricing for sizes F – O. Larger sizes available with a sizing fee.

Setting 18ct Rose Gold $3,219
Your centre diamond Chosen in Step 2
Ring so far $3,219 + centre
Choose your centre diamond
Want to customise this design?

Our master jeweller creates custom designs, from subtle modifications to fully bespoke pieces.

Get in touch
Ships by
Tuesday 3 November 2026
Every ring is hand-finished to order. Allow six weeks from order confirmation. Need it sooner? Talk to us about priority craft.
GIA & IGI Certified
Lifetime Warranty
Free Insured Shipping
14-Day Returns
Made in Australia
The Pavé Diamonds

The stones around your centre.

The Alexa - Unique Halo Round Diamond Engagement Ring is set with 16 - 20 small round brilliants, each fitted individually by hand. Same MYD light-performance standard as your centre stone.

16 - 20
Pavé Diamonds
0.15 - 0.20ct
Total Weight (T.W.)
Round
Stone Shape
Micro Claw
Setting Type
Colour and clarity change with your pavé choice
Weight, count, shape and setting stay the same. Only the two specs below shift.
Natural pavé Your choice
ColourF to G
ClarityVS
Stone typeNatural
vs
Lab-grown pavé Your choice
ColourD to E
ClarityVS
Stone typeLab-grown
Both grades exceed what the eye can tell apart. Toggle the choice above in your configurator to switch.

A unique halo, set beneath the centre diamond rather than around it

Alexa is a unique diamond engagement ring, and the halo is the reason. On almost every halo ring the small diamonds sit level with the centre stone and ring it like a border. On Alexa the halo sits underneath. It is set below the girdle, so the centre diamond overhangs it and roughly half the halo disappears behind the stone. What you see from above is a thin bright edge that follows the outline of the centre diamond, not a separate ring of stones around it.

That one change does two things. The centre stone reads wider, because the halo you can see extends its outline rather than sitting apart from it. And from the side the ring keeps a clean profile, since the halo is tucked into the setting instead of sitting proud of it. It is the detail people notice when they pick the ring up, and it is why we call this a unique halo rather than a halo.

The halo is micro claw set, sixteen to twenty small round diamonds. Each is F or G colour if you choose natural, D or E if you choose lab grown, all VS clarity. The band underneath is left plain and polished, and that is deliberate. With no stones on the shoulders there is nothing competing with the head, and the ring stays easy to wear and easy to clean.

The setting head is white gold or platinum on every version, including the yellow and rose gold bands. A white metal under a diamond reflects less colour into the stone, so the centre reads whiter. You choose the band colour: 14ct or 18ct gold in white, yellow or rose, or 950 platinum. Monroe Yorke is engraved on the band.

Choose a natural centre diamond, GIA certified, or lab grown, IGI certified. Both are sourced at the highest cut grade their respective labs award. The price difference between natural and lab grown is typically forty to sixty per cent at the same carat weight.

Every Monroe Yorke ring goes through ten distinct stages over four to eight weeks. Design refinement. Three-dimensional modelling. Casting. Stone sourcing. Cleaning. Polishing. Setting. About eight hours of bench-level finishing. Quality control. And the final approval our master jeweller signs off himself. Made in Australia, ten stages, no shortcuts.

Who this ring is for

You have looked at a lot of halo rings and they have started to look the same. If you want a unique engagement ring that still reads as a classic from across a room, this is the one to handle in person: the difference is in how the halo is set, not in how loud the design is. If you want the halo hidden completely, so nothing shows from above, look at Orion. If you want a unique diamond ring with no halo at all, see Love.

Our Diamond Standard

Cut for perfect light return.

The single standard every diamond we set has to meet, whether it's your centre stone or an accent.

Excellent cut

Excellent cut natural or Ideal cut lab. The single most important factor in how a diamond returns light. A great cut in a modest colour outperforms a poor cut in a top colour every time.

Symmetry & polish

Excellent symmetry, excellent polish. The finishing decisions the cutter makes after the cut is done. Determines whether the light comes out clean or scattered.

No fluorescence

None or Faint only. Strong fluorescence can make a diamond look milky or hazy in daylight. We hand-select stones with clean fluor grading.

Colour, honest

D to G natural. D to E lab-grown. The colour range where a diamond reads white to the naked eye without paying for grades you cannot see.

Hand-finished · Australia

Six stages, six weeks.

The process every ring goes through, in our Australian workshop.

01

Design lock

CAD file locked, dimensions verified against your ring size and centre stone spec.
02

Cast

The setting is cast from your chosen 14ct, 18ct or platinum alloy. One casting per ring.
03

Set the stones

Any accent diamonds are set individually, checked under 10x loupe between each.
04

Set the centre

Your GIA or IGI diamond seated into the mount. Prongs tightened, gaps checked.
05

Polish & finish

Every surface polished to mirror, every edge softened by hand.
06

QC & ship

Full quality check against the design brief, then insured overnight courier to your door.
Reviews

What people say about us.

★★★★★

"Sean was great to deal with. Professional, knowledgeable, and followed through with exactly what he promised. The quality of the ring is excellent and my fiancé and I are thrilled. I would highly recommend Monroe Yorke."

Steve Gilbey · Verified purchase
Common Questions

Your questions, answered.

Ring information reviewed September 2026

Why is the centre diamond bought separately?

Two reasons. Choice, the centre diamond is the single biggest variable in the ring's final look and price. Buying setting and diamond as one bundle means compromising on one to save on the other. This way you match the diamond exactly to your budget, taste, and the recipient's preference.

And speed, the setting can start being made the moment you order Step 1, while you take your time choosing the diamond.

Why do larger ring sizes cost extra?

More precious metal, more setting time. Sizes above the standard range use noticeably more gold or platinum and need extra finishing hours to keep proportions right. The exact supplement shows next to the size the moment you select it, and again as its own line in the running total.

What if I pick the wrong centre shape now?

You can change it up until you commit to a specific diamond in Step 2. Your shape choice on this page pre-filters the diamond search to speed things up. If you land on the search and change your mind, change the filter and the setting adapts.

Can I mix natural and lab-grown diamonds?

Yes. Your centre diamond can be natural or lab-grown regardless of any accent diamonds on the setting. All combinations are supported.

Can I see this ring in person?

Yes. Book a private appointment at any of our four Australian showrooms, Sydney, Melbourne, Brisbane or Perth.

How long from order to delivery?

Six weeks from the moment your order is confirmed. Includes the six workshop stages plus insured overnight shipping.

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