Made to Order

Radiant Trilogy Ring

Name: Radiant Trilogy Ring
Brand: Louise Jean
Price: 7450.0 AUD
Availability: InStock

$7,450

The Radiant Trilogy ring - our most coveted three-stone engagement ring - beautifully symbolises your ...

The Radiant Trilogy ring - our most coveted three-stone engagement ring ...

Metal 18K Yellow Gold

Carat 1.50ct (2.50cttw)

Order today for expected dispatch by 30 Sep 2026

Order today for expected dispatch by

The Radiant Trilogy ring - our most coveted three-stone engagement ring - beautifully symbolises your past, present, and future in a perfectly balanced design. An elongated cushion lab-grown diamond centre stone is accented by two perfectly proportioned elongated cushion side stones and set in a sweeping high-profile design.

This timeless cushion trilogy engagement ring is made to order in two total carat weight options and crafted in your metal preference. Every diamond is carefully selected by our in-house Louise Jean diamond experts and matched to create a perfectly complementary diamond suite.

This design is available exclusively with lab-grown diamonds graded D-E and VS+. For natural diamonds, gemstones or alternative stone dimensions, please contact our customer consultants who can guide you through the bespoke creation process.

Carat Sizes

2.50cttw - 1.50ct centre | 2 x 0.50ct accents
3.40cttw - 2.00ct centre | 2 x 0.70ct accents

Metal 18K Yellow Gold

18K Yellow Gold is a luxurious alloy with 75% pure gold, featuring a lustrous, rich yellow colour. The most pure gold alloy, it provides excellent longevity, ideal for lifetime pieces.

Metal 18K Yellow Gold

18K Yellow Gold is a luxurious alloy with 75% pure gold, featuring a lustrous, rich yellow colour. The most pure gold alloy, it provides excellent longevity, ideal for lifetime pieces.

Metal 18K Rose Gold

18K Rose Gold is a durable, luxurious alloy with 75% pure gold, and a rich, lustrous rose-pink colour. The most pure gold alloy, it offers the best longevity for lifetime pieces.

Metal 18K Rose Gold

18K Rose Gold is a durable, luxurious alloy with 75% pure gold, and a rich, lustrous rose-pink colour. The most pure gold alloy, it offers the best longevity for lifetime pieces.

Metal 18K White Gold

18K White Gold is a luxurious alloy with 75% pure gold, naturally dark grey and rhodium plated for a bright white finish. Its purity and durability are ideal for lifetime pieces.

Metal 18K White Gold

18K White Gold is a luxurious alloy with 75% pure gold, naturally dark grey and rhodium plated for a bright white finish. Its purity and durability are ideal for lifetime pieces.

Metal Platinum

Platinum is a dense, durable, naturally white metal that develops a patina over time. It's highly resistant to bending and can be polished to restore its shine.

Metal Platinum

Platinum is a dense, durable, naturally white metal that develops a patina over time. It's highly resistant to bending and can be polished to restore its shine.

Metal 18K Yellow Gold | Two Tone

An optional design feature where the setting and claws are crafted in Platinum or White Gold dependent on your chosen design, and the shank in 18K Yellow Gold.

Metal 18K Yellow Gold | Two Tone

An optional design feature where the setting and claws are crafted in Platinum or White Gold dependent on your chosen design, and the shank in 18K Yellow Gold.

Metal 18K Rose Gold | Two Tone

An optional design feature where the setting and claws are crafted in Platinum or White Gold dependent on your chosen design, and the shank in 18K Rose Gold.

Metal 18K Rose Gold | Two Tone

An optional design feature where the setting and claws are crafted in Platinum or White Gold dependent on your chosen design, and the shank in 18K Rose Gold.

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Our most versatile band width, available in all profiles, offers essential support for lifetime wear while maintaining a fine, elegant appearance. Recommended for stones over 3.00ct. Band height: 2.1mm.

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Setting Trilogy

A three-stone design featuring a trilogy of stones of the same diamond shape, crafted in a high-profile and sweeping silhouette.

Diamond Lab-Grown Diamond

Laboratory-grown diamonds are true diamonds, grown under carefully controlled laboratory conditions. They are chemically, physically and visually identical to natural diamonds.

Band Profile Half Round

Our most requested band profile, gently rounded from the top with flat sides and inner edge. Giving the illusion of a daintier band, this profile is perfect for seamless stacking.

Band Width Half Round 2mm

Behind The Design

Our Guarantee To You

Responsibly Crafted in Australia
Complimentary Service & Cleans
Limited Lifetime Warranty

This engagement ring is crafted to order and has a 7 to 10 weeks production timeframe. This manufacturing process does not include shipping timeframes and is subject to change, especially during peak wedding and holiday seasons.

As a recommendation, we advise allowing plenty of time before your proposal or event to order your rings, to ensure a smooth, stress-free production and delivery experience.

Development

Our designers create technical drawings for your unique ring, shared with you for approval

Crafting

Your ring is meticulously crafted in Australia through our extensive production process

Completion

Receive a gallery of imagery of your beautiful ring before it is ready for collection or shipping

Learn More

To ensure your jewellery remains as beautiful as the day you received it, proper care and regular maintenance are essential. This guide offers tailored advice for each material

Gold Care

Solid gold is durable but can scratch over time. Keep it away from chemicals, lotions, cleaning products, and chlorine, which can cause oxidation and brittleness. Always remove jewellery before swimming, exercising, or manual tasks, including household chores. Store pieces in a soft-lined box, separated from other jewellery, especially diamonds. The rhodium plating on white gold wears away over time; minimise polishing to slow this process. Check regularly for damage and service annually, including rhodium plating when the warmer metal begins to show.

Platinum

Platinum is a dense, durable metal but can develop a natural patina over time. Keep platinum away from chemicals, lotions, cleaning products, and chlorine, which can cause oxidation and scratching. Always remove platinum jewellery before exercising, or doing manual tasks, including household chores. While resilient, platinum can scratch more easily than gold, so store it separately to avoid abrasion, including from diamonds.

Diamonds

Diamonds are the hardest natural material, but are not indestructible. They can still chip or break if struck with force, particularly on edges or points. Protect your diamonds from knocks by being mindful of how you wear your rings or other pieces. Store jewellery individually in its original packaging to avoid contact and scratching with other diamonds.

Gemstones & Pearls

Gemstones, including sapphires, are durable but still require care. Pearls especially are delicate and require particularly special care. Avoid exposure to harsh chemicals, lotions, and cleaning products. Remove pearl and gemstone jewellery before swimming, exercising, or doing household chores to prevent scratches. Clean only with a soft cloth, or gentle soap and water. Most gemstones and all pearls are unsuitable for an ultrasonic cleaner.

Chains

Store in a soft-lined box, separated from other jewellery to minimise tangling and avoid bends, dents, or kinks. Clean with a soft cloth and regularly check for damage. Note that white gold chains may require regular rhodium plating.

Service & Clean

A professional service and clean begins with a thorough check of the item's shape and condition, looking for any damage. After using an ultrasonic cleaner to remove debris, we inspect the stones and settings under stereo microscopes to ensure they’re secure and identify any wear, scratches, or dents. Necessary adjustments are made, such as straightening, polishing, or re-tightening settings. For white gold and platinum, rhodium plating is applied to restore brightness.

Annual servicing, especially for rings and tennis bracelets, helps maintain your jewellery's beauty and longevity.

Read our Service & Care Guides

We ship worldwide! Online orders are processed Monday to Friday, excluding public holidays. All parcels require a signature upon delivery and include tracking and insurance whilst in transit.

Returns & Exchanges

We kindly ask that you choose carefully – we will be happy to assist with any questions you have about our pieces prior to placing your order. Customer satisfaction is very important to us. If you aren’t happy with your item, please contact us and we will work together to resolve the issue.

Made-To-Order

LOUISE JEAN does not issue refunds, store credit, or exchanges for any made-to-order engagement rings or wedding bands.

Ready To Wear

LOUISE JEAN does not issue refunds for Ready-To-Wear pieces. Unworn Ready-To-Wear pieces may be exchanged within 14 days of the delivery date for store credit, minus a $150 restocking fee. If returned within 14-28 days, the fee increases to $300.

This policy does not apply to rings that have been resized. It is at the client’s expense to safely return the item to LOUISE JEAN in its original condition and packaging and within the above timeframe. A store credit will be issued to the email address used in the original order. Exchanges or credits will not be accepted outside of these conditions.

Fine Jewellery

LOUISE JEAN Fine Jewellery pieces are non-refundable and cannot be refunded for incorrect purchases. Unworn Fine Jewellery, excluding price on application (POA) pieces, may be returned for an exchange or credit in Australia if returned in a saleable condition within 14 days of the delivery date.

It is at the client’s expense to safely return the item(s) to LOUISE JEAN in their original condition and packaging, within the above timeframe. Credits are issued in the form of gift cards and are valid for a period of three years.

LOUISE JEAN does not issue refunds, store credit, or exchanges for any bespoke fine jewellery crafted with price on application (POA).

Home & Accessories

Home & Accessories items may be returned for a full refund in Australia if returned unopened and unused, in a saleable condition within 14 days of the delivery date.

Learn More

Inner Diameter (mm)	AU, NZ, UK	US, CA
13.54 mm	E	2 1/2
13.74 mm	E 1/2	2 3/4
13.94 mm	F	3
14.14 mm	F 1/2	3 1/4
14.34 mm	G	3 1/2
14.54 mm	G 1/2	3 3/4
14.74 mm	H	4
14.94 mm	H 1/2	4 1/4
15.14 mm	I	4 1/2
15.34 mm	I 1/2	4 3/4
15.54 mm	J	5
15.74 mm	J 1/2	5 1/4
15.94 mm	K	5 1/2
16.14 mm	K 1/2	5 3/4
16.32 mm	L	6
16.52 mm	L 1/2	6 1/4
16.72 mm	M	6 1/2
16.92 mm	M 1/2	6 3/4
17.12 mm	N	7
17.32 mm	N 1/2	7 1/4
17.52 mm	O	7 1/2
17.72 mm	O 1/2	7 3/4
17.92 mm	P	8
18.12 mm	P 1/2	8 1/4
18.32 mm	Q	8 1/2
18.52 mm	Q 1/2	8 3/4
18.72 mm	R	9
18.92 mm	R 1/2	9 1/4
19.12 mm	S	9 1/2
19.32 mm	S 1/2	9 3/4
19.52 mm	T	10
19.72 mm	T 1/2	10 1/4
19.92 mm	U	10 1/2
20.1 mm	U 1/2	10 3/4
20.3 mm	V	11
20.5 mm	V 1/2	11 1/4
20.7 mm	W	11 1/2
20.9 mm	W 1/2	11 3/4
21.1 mm	X	12
21.3 mm	X 1/2	12 1/4
21.5 mm	Y	12 1/2
21.7 mm	Y 1/2	12 3/4
21.9 mm	Z	13
22.3 mm	Z+1	13 1/2
22.5 mm	Z+1 1/2	13 3/4
22.1 mm	Z 1/2	13 1/4
22.7 mm	Z+2	14
22.9 mm	Z+2 1/2	14 1/4
23.1 mm	Z+3	14 1/2
23.3 mm	Z+3 1/2	14 3/4

Size Guide

Radiant Trilogy Ring

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Product details

Behind The Design

Our Guarantee To You

7 - 10 Weeks Production

Development

Crafting

Completion

Product Care

Gold Care

Platinum

Diamonds

Gemstones & Pearls

Chains

Service & Clean

Shipping & Returns

Returns & Exchanges

Made-To-Order

Ready To Wear

Fine Jewellery

Home & Accessories

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