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Seamless Radiant Cut Trapezoid Three Stone Hidden Halo Diamond Engagement Ring - 18K Rose

Seamless Radiant Trapezoid Stone 18K Rose

Regular price $2,495.00
Sale price $2,495.00 Regular price
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Seamless Radiant Cut Trapezoid Three Stone Hidden Halo Diamond Engagement Ring - 18K Yellow

Seamless Radiant Trapezoid Stone 18K Yellow

Regular price $2,495.00
Sale price $2,495.00 Regular price
Unit price
Seamless Radiant Cut Trapezoid Three Stone Hidden Halo Diamond Engagement Ring - 18K White

Seamless Radiant Trapezoid Stone 18K White

Regular price $2,495.00
Sale price $2,495.00 Regular price
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Seamless Radiant Cut Trapezoid Three Stone Hidden Halo Diamond Engagement Ring - Platinum

Seamless Radiant Trapezoid Stone - Platinum

Regular price $2,495.00
Sale price $2,495.00 Regular price
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Lama Radiant Cut Bezel Cathedral 2MM Setting Diamond Engagement Ring - 18K Rose

Lama Radiant Bezel 2MM 18K Rose

Regular price $1,750.00
Sale price $1,750.00 Regular price
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Lama Radiant Cut Bezel Cathedral 2MM Setting Diamond Engagement Ring - 18K Yellow

Lama Radiant Bezel 2MM 18K Yellow

Regular price $1,750.00
Sale price $1,750.00 Regular price
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Lama Radiant Cut Bezel Cathedral 2MM Setting Diamond Engagement Ring - 18K White

Lama Radiant Bezel 2MM 18K White

Regular price $1,750.00
Sale price $1,750.00 Regular price
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Lama Radiant Cut Bezel Cathedral 2MM Setting Diamond Engagement Ring - Platinum

Lama Radiant Bezel 2MM - Platinum

Regular price $1,750.00
Sale price $1,750.00 Regular price
Unit price
Celtic Solitaire Radiant Cut Cathedral Style Tapered Band Diamond Engagement Ring - 18K Rose

Celtic Solitaire Cut Style 18K Rose

Regular price $1,750.00
Sale price $1,750.00 Regular price
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Celtic Solitaire Radiant Cut Cathedral Style Tapered Band Diamond Engagement Ring - 18K Yellow

Celtic Solitaire Cut Style 18K Yellow

Regular price $1,750.00
Sale price $1,750.00 Regular price
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Celtic Solitaire Radiant Cut Cathedral Style Tapered Band Diamond Engagement Ring - 18K White

Celtic Solitaire Cut Style 18K White

Regular price $1,750.00
Sale price $1,750.00 Regular price
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Celtic Solitaire Radiant Cut Cathedral Style Tapered Band Diamond Engagement Ring - Platinum

Celtic Solitaire Cut Style - Platinum

Regular price $1,750.00
Sale price $1,750.00 Regular price
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Luxe Radiant Cut Hidden Halo Cathedral Setting Pave Set Side Stones Diamond Ring - 18K Rose

Luxe Radiant Hidden Cathedral 18K Rose

Regular price $2,350.00
Sale price $2,350.00 Regular price
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Luxe Radiant Cut Hidden Halo Cathedral Setting Pave Set Side Stones Diamond Ring - 18K Yellow

Luxe Radiant Hidden Cathedral 18K Yellow

Regular price $2,350.00
Sale price $2,350.00 Regular price
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Luxe Radiant Cut Hidden Halo Cathedral Setting Pave Set Side Stones Diamond Ring - 18K White

Luxe Radiant Hidden Cathedral 18K White

Regular price $2,350.00
Sale price $2,350.00 Regular price
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Luxe Radiant Cut Hidden Halo Cathedral Setting Pave Set Side Stones Diamond Ring - Platinum

Luxe Radiant Hidden Cathedral - Platinum

Regular price $2,350.00
Sale price $2,350.00 Regular price
Unit price
Dawn Solitaire Pear Cut Hidden Halo low Setting Diamond Ring - 18K Rose

Dawn Solitaire Cut Halo 18K Rose

Regular price $1,795.00
Sale price $1,795.00 Regular price
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Dawn Solitaire Pear Cut Hidden Halo low Setting Diamond Ring - 18K Yellow

Dawn Solitaire Cut Halo 18K Yellow

Regular price $1,795.00
Sale price $1,795.00 Regular price
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Dawn Solitaire Pear Cut Hidden Halo low Setting Diamond Ring - 18K White

Dawn Solitaire Cut Halo 18K White

Regular price $1,795.00
Sale price $1,795.00 Regular price
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Dawn Solitaire Pear Cut Hidden Halo low Setting Diamond Ring - Platinum

Dawn Solitaire Cut Halo - Platinum

Regular price $1,795.00
Sale price $1,795.00 Regular price
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Breath Solitaire Radiant Cut Hidden Halo Four Claw Setting Diamond Engagement Ring - 18K Rose

Breath Solitaire Cut Halo 18K Rose

Regular price $1,895.00
Sale price $1,895.00 Regular price
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Breath Solitaire Radiant Cut Hidden Halo Four Claw Setting Diamond Engagement Ring - 18K Yellow

Breath Solitaire Cut Halo 18K Yellow

Regular price $1,895.00
Sale price $1,895.00 Regular price
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Breath Solitaire Radiant Cut Hidden Halo Four Claw Setting Diamond Engagement Ring - 18K White

Breath Solitaire Cut Halo 18K White

Regular price $1,895.00
Sale price $1,895.00 Regular price
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Breath Solitaire Radiant Cut Hidden Halo Four Claw Setting Diamond Engagement Ring - Platinum

Breath Solitaire Cut Halo - Platinum

Regular price $1,895.00
Sale price $1,895.00 Regular price
Unit price
Winnie Radiant Cut Cathedral Compass Setting with Hidden Pave Setting Side stones Diamond Engagement Ring - 18K Rose

Winnie Radiant Cathedral Setting 18K Rose

Regular price $2,385.00
Sale price $2,385.00 Regular price
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Winnie Radiant Cut Cathedral Compass Setting with Hidden Pave Setting Side stones Diamond Engagement Ring - 18K Yellow

Winnie Radiant Cathedral Setting 18K Yellow

Regular price $2,385.00
Sale price $2,385.00 Regular price
Unit price
Winnie Radiant Cut Cathedral Compass Setting with Hidden Pave Setting Side stones Diamond Engagement Ring - 18K White

Winnie Radiant Cathedral Setting 18K White

Regular price $2,385.00
Sale price $2,385.00 Regular price
Unit price
Winnie Radiant Cut Cathedral Compass Setting with Hidden Pave Setting Side stones Diamond Engagement Ring - Platinum

Winnie Radiant Cathedral Setting - Platinum

Regular price $2,385.00
Sale price $2,385.00 Regular price
Unit price
Matisse Radiant Cut Cathedral Setting Hidden Halo Pave Setting Side Stones Diamond Engagement Ring - 18K Rose

Matisse Radiant Cathedral Hidden 18K Rose

Regular price $2,200.00
Sale price $2,200.00 Regular price
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Matisse Radiant Cut Cathedral Setting Hidden Halo Pave Setting Side Stones Diamond Engagement Ring - 18K Yellow

Matisse Radiant Cathedral Hidden 18K Yellow

Regular price $2,200.00
Sale price $2,200.00 Regular price
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Matisse Radiant Cut Cathedral Setting Hidden Halo Pave Setting Side Stones Diamond Engagement Ring - 18K White

Matisse Radiant Cathedral Hidden 18K White

Regular price $2,200.00
Sale price $2,200.00 Regular price
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Matisse Radiant Cut Cathedral Setting Hidden Halo Pave Setting Side Stones Diamond Engagement Ring - Platinum

Matisse Radiant Cathedral Hidden - Platinum

Regular price $2,200.00
Sale price $2,200.00 Regular price
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Margot Trilogy Antique Style Pear Cut with Tapered Baquette Side stone Diamond Ring - 18K Rose

Margot Trilogy Style Cut 18K Rose

Regular price $2,695.00
Sale price $2,695.00 Regular price
Unit price
Margot Trilogy Antique Style Pear Cut with Tapered Baquette Side stone Diamond Ring - 18K Yellow

Margot Trilogy Style Cut 18K Yellow

Regular price $2,695.00
Sale price $2,695.00 Regular price
Unit price
Margot Trilogy Antique Style Pear Cut with Tapered Baquette Side stone Diamond Ring - 18K White

Margot Trilogy Style Cut 18K White

Regular price $2,695.00
Sale price $2,695.00 Regular price
Unit price
Margot Trilogy Antique Style Pear Cut with Tapered Baquette Side stone Diamond Ring - Platinum

Margot Trilogy Style Cut - Platinum

Regular price $2,695.00
Sale price $2,695.00 Regular price
Unit price
Kala Oval Cut Trilogy Low Setting Diamond Engagement Ring - 18K Rose

Kala Oval Trilogy Setting 18K Rose

Regular price $2,285.00
Sale price $2,285.00 Regular price
Unit price
Kala Oval Cut Trilogy Low Setting Diamond Engagement Ring - 18K Yellow

Kala Oval Trilogy Setting 18K Yellow

Regular price $2,285.00
Sale price $2,285.00 Regular price
Unit price
Kala Oval Cut Trilogy Low Setting Diamond Engagement Ring - 18K White

Kala Oval Trilogy Setting 18K White

Regular price $2,285.00
Sale price $2,285.00 Regular price
Unit price
Kala Oval Cut Trilogy Low Setting Diamond Engagement Ring - Platinum

Kala Oval Trilogy Setting - Platinum

Regular price $2,285.00
Sale price $2,285.00 Regular price
Unit price
Arlo Oval Cut Hidden Halo Marquise Cut Side stones Bezel Set Diamond Engagement Ring - 18K Rose

Arlo Oval Hidden Marquise 18K Rose

Regular price $2,395.00
Sale price $2,395.00 Regular price
Unit price
Arlo Oval Cut Hidden Halo Marquise Cut Side stones Bezel Set Diamond Engagement Ring - 18K Yellow

Arlo Oval Hidden Marquise 18K Yellow

Regular price $2,395.00
Sale price $2,395.00 Regular price
Unit price
Arlo Oval Cut Hidden Halo Marquise Cut Side stones Bezel Set Diamond Engagement Ring - 18K White

Arlo Oval Hidden Marquise 18K White

Regular price $2,395.00
Sale price $2,395.00 Regular price
Unit price
Arlo Oval Cut Hidden Halo Marquise Cut Side stones Bezel Set Diamond Engagement Ring - Platinum

Arlo Oval Hidden Marquise - Platinum

Regular price $2,395.00
Sale price $2,395.00 Regular price
Unit price
Casey Oval Cut Antique Style Bezel Frame Cathedral Setting Four Claw Setting Engagement Ring - 18K Rose

Casey Oval Antique Bezel 18K Rose

Regular price $2,595.00
Sale price $2,595.00 Regular price
Unit price
Casey Oval Cut Antique Style Bezel Frame Cathedral Setting Four Claw Setting Engagement Ring - 18K Yellow

Casey Oval Antique Bezel 18K Yellow

Regular price $2,595.00
Sale price $2,595.00 Regular price
Unit price
Casey Oval Cut Antique Style Bezel Frame Cathedral Setting Four Claw Setting Engagement Ring - 18K White

Casey Oval Antique Bezel 18K White

Regular price $2,595.00
Sale price $2,595.00 Regular price
Unit price
Casey Oval Cut Antique Style Bezel Frame Cathedral Setting Four Claw Setting Engagement Ring - Platinum

Casey Oval Antique Bezel - Platinum

Regular price $2,595.00
Sale price $2,595.00 Regular price
Unit price
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Looking for custom diamond rings in Melbourne?

At DG & Co., our custom engagement rings are designed and manufactured exclusively for you. Whether you have a design in mind or would like our expert jewellery designers to come up with a unique design for you, we will work with you at every step of the way to bring your dream engagement ring to life.

Looking for coloured diamonds? Perhaps you prefer a rose gold ring? No matter your preference, we have you covered. All our custom engagement rings are crafted in-house using traditional techniques by our expert craftsmen in Melbourne.

All our diamonds are GIA-certified and are ethically sourced to assure you of complete peace of mind. Custom-designed engagement rings can take 3 to 4 weeks. Detailed designs could take even longer. The complete process from initial consultation to delivery could take 4 to 6 weeks. Simply share your idea with us and we will work with you to bring your dream engagement ring to life.

Design Your Own Engagement Ring — Where It All Begins

Every great custom ring starts with a conversation. When you design your own engagement ring with DG & Co., you're not choosing from a shelf — you're creating a piece that tells your story. We begin by understanding your partner's style, your budget, your timeline, and your vision. The process is collaborative from the first appointment. Our designers sketch concepts, present stone options, and guide you through every decision — diamond shape, band profile, metal, setting. Nothing is finalised until you're completely satisfied.

What Does 'Build Your Own Engagement Ring' Actually Mean?

Building your own ring means making every key choice, with expert guidance along the way. You choose: ● The diamond or gemstone — shape, carat, colour, clarity and certification
● The metal — 18k yellow, white or rose gold, or platinum
● The setting — solitaire, halo, pavé, three-stone, vintage milgrain and more
● The band profile — plain, twisted, split, cathedral or knife-edge
● Any engraving or personal detail
The result reflects your relationship and your own taste — not a catalogue design.

Custom Engagement Bands — The Foundation of the Design

The band is often overlooked, yet it defines a ring's character. A plain band spotlights the diamond; pavé spreads brilliance across the ring; a twisted band adds movement; a cathedral band lifts the stone dramatically. At DG & Co., every band is crafted to complement your chosen diamond and setting — never an afterthought. We produce bands in any profile — half-round, flat, comfort-fit, knife-edge, tapered — in all standard metals, plus two-tone and custom-width options.

Popular Custom Band Styles
● Plain half-round — comfortable, classic, understated
● Pavé — small diamonds set into the band for continuous brilliance
● Twisted or rope — spirals toward the setting for a sense of flow
● Split/fork — divides below the stone, framing it from two sides
● Cathedral — arched supports elevate the stone
● Knife-edge — tapers to a sharp, slimming ridge
● Milgrain-edge — beaded detail along the edges, a vintage hallmark

Custom Rings — Crafted in Melbourne, Made for a Lifetime All DG & Co. rings are made in our Melbourne workshop by experienced craftsmen using traditional and modern techniques. We never outsource production. Every ring leaves our workshop only after passing internal inspection. This lets us accommodate detailed or highly personal designs standard jewellers can't produce, with consistent, verifiable quality.

Why In-House Manufacturing Matters

● Direct oversight from wax model to finished ring
● Ability to adjust designs during production
● Faster turnaround for modifications and resizing
● Transparent process — see your ring at each stage
● No intermediary markup — your budget goes into the ring

Customise Your Engagement Ring — The DG & Co. Process

Our process is refined to be clear, enjoyable and stress-free — even for first-time fine jewellery buyers.

Step 1 — Initial Consultation Your journey starts with a consultation — in-person in Melbourne or via video call. We learn your vision, your partner's style, your budget and timeline. No obligation, no pressure.

Step 2 — Design Concept & Stone Selection Our designers prepare concept sketches and present certified diamonds or gemstones, explaining the four Cs and the difference between GIA and IGI certification. You'll leave knowing exactly what your ring will look like and cost.

Step 3 — Approval & Production Once approved, production begins — typically 3 to 4 weeks, longer for elaborate designs. We keep you informed throughout.

Step 4 — Delivery & Aftercare When ready, we arrange collection or delivery. Every ring comes with its diamond certificate, valuation, and aftercare instructions, plus a complimentary first-year clean and prong check.

Engagement Ring Design — Making the Key Decisions

Ring design involves interconnected choices — the diamond shape and setting style you pick early will shape which bands and metals work best. Our team guides you through the sequence.

Choosing the Diamond Shape The shape defines the ring's character. Round brilliants maximise sparkle; ovals elongate the finger; cushions feel soft and romantic; emerald cuts are architectural; pears are dramatic. Your choice influences which settings and bands flatter it best. We can show samples of each shape in person.

Choosing the Metal Metal is the most personal decision. Yellow gold is warm and traditional, currently having a revival. White gold and platinum are cool and contemporary, popular for D–F colour diamonds. Rose gold flatters most skin tones and photographs beautifully. Two-tone designs combine metals for a distinctive look.

Choosing the Setting Style The setting determines how the diamond is held and presented. Solitaire focuses attention on the stone; halo amplifies its perceived size; three-stone flanks it with side stones; pavé adds sparkle to the band shoulders; bezel offers the most protection for active lifestyles. Each affects wearability, maintenance and visual impact.

Designing a Wedding Ring to Match Your Engagement Ring

Since both rings are worn together daily, they should look like they belong together. DG & Co. can design a matching wedding band as part of the same commission, curved to sit perfectly against your engagement ring with no gap. Designing both together is the most practical approach — we already have your engagement ring's exact specifications to match in metal, finish and proportion. Many couples return one to three years later to commission a matching anniversary or eternity ring.

What to Consider When Designing a Matching Wedding Band

● Profile — curved wraps around the ring; straight sits flush beside it
● Width — typically 2–3mm narrower than the engagement ring
● Metal — match exactly for seamless look, or contrast intentionally
● Diamonds — can echo the engagement ring's side stones or halo
● Finish — polished, brushed or combination, complementing the engagement ring

Custom Design Engagement Ring — Frequently Asked Questions

Everything you need to know about designing your own engagement ring with DG & Co.

The complete process from initial consultation to ring delivery typically takes 4 to 6 weeks. The design and approval stage takes 1 to 2 weeks; production takes 3 to 4 weeks. More elaborate or detailed designs — including complex milgrain work, unusual settings or very large stones — may take longer. We recommend beginning the process at least 6 to 8 weeks before your intended proposal date to allow comfortable time for any revisions.
Absolutely — and we encourage it. Many of our most successful custom commissions have begun with a client sharing a photo, a sketch, a piece of inherited jewellery, or a description of something they had seen and admired. Our designers are skilled at interpreting visual references and translating them into workable ring designs. Even a very rough idea or mood board is a useful starting point. You do not need to arrive with a precise specification.
Yes. Many clients bring an inherited diamond, a stone purchased elsewhere, or a gemstone they have sourced independently. We will assess the stone's specifications and advise on which setting styles will suit it best. If the stone is not certified, we can arrange independent certification before proceeding. We work with diamonds, sapphires, rubies, emeralds, morganite, and most other gemstones. Note that some unusual stones may require specific setting techniques to protect them during daily wear; our team will advise on this during the initial consultation.
A fully custom ring is designed from scratch — the band, the setting, and every detail are created specifically for you. A semi-custom ring starts with one of our existing designs and modifies it — changing the metal, adding pavé shoulders, adjusting the band width, or changing the prong style. Both options are available at DG & Co. Semi-custom designs are faster (typically 3 to 4 weeks) and slightly lower in cost; fully custom designs offer maximum flexibility and uniqueness.
All natural diamonds supplied by DG & Co. are either GIA or IGI certified. GIA (Gemological Institute of America) is widely regarded as the most conservative and consistent grading body. IGI (International Gemological Institute) is equally respected and is the standard for lab grown diamonds. Every certificate will be provided with your ring, along with an independent valuation document for insurance purposes. If you source your own stone, we strongly recommend obtaining certification before the design process begins.
Yes — and this is an increasingly popular choice. Lab grown diamonds are chemically and physically identical to natural diamonds. They are available in all the same shapes, sizes and quality grades, and they carry IGI certification. The significant price difference between natural and lab grown — often 60–80% less for the same size and quality — means buyers can typically afford a much larger or higher-quality stone when choosing lab grown. Our team can walk you through both options and help you decide which approach best suits your priorities.
We produce custom engagement rings in 18k yellow gold, 18k white gold, 18k rose gold, and platinum. Two-tone designs — combining two metals in a single ring — are also available, typically pairing yellow and white gold or rose and white gold. We do not currently offer 9k gold for engagement ring commissions; 9k alloys are used in some of our ready-to-wear wedding bands but are not suitable for complex bespoke work requiring fine prong-setting or detailed milgrain.
The cost of a custom engagement ring depends on three main variables: the diamond or gemstone (the largest component of the total cost), the metal and its weight, and the complexity of the design. Our custom commissions range from approximately $2,000 for a simple solitaire with a smaller natural or lab grown diamond to well above $30,000 for elaborate designs featuring large or rare stones. During your initial consultation, we will establish your budget and work to deliver the best possible ring within it. We do not have a minimum spend requirement for custom commissions.
Minor changes — such as a small adjustment to the band width or a change to a prong profile — can sometimes be accommodated in the early stages of production without significant impact on the timeline or cost. Substantial changes after the wax model has been approved and casting has begun may require restarting part of the process, which will affect both timeline and cost. This is why we invest time in the design approval stage before production begins — to ensure every detail is correct before the ring is made.
Yes. All DG & Co. custom engagement rings come with a complimentary first service within 12 months — a professional clean, ultrasonic treatment, prong check and polish. Resizing is available at a standard charge; the feasibility and cost depends on the ring design and metal. Rings with full-circle pavé or channel settings are harder to resize than plain-band solitaires. For complex designs, we recommend having your partner's finger sized as accurately as possible before production rather than relying on resizing after delivery. Our team will advise on the best approach for your specific design.

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