Collection: Build Your Own Ring — Choose Your Setting
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MARLENE Cushion Solitaire
Regular price From $1,800.00 AUDRegular priceUnit price / perSale price From $1,800.00 AUDSoft elegance, timeless allure.
The Marlene ring embodies the graceful glamour of a bygone era. Its cushion-cut centre diamond — a perfect blend of brilliance and romance — rests delicately in a four-prong setting that highlights the stone’s gentle curves and inner fire. Paired with a polished gold band, this design offers a harmonious balance of warmth and refinement, capturing the spirit of classic American beauty with a modern edge.
Band width 1.8 mm Setting style Solitaire Diamond shape Cushion Prong style Four-prong Profile Low-set, comfort fit Metal options 14K / 18K Yellow, White or Rose Gold · Platinum 950 Finish High-polish mirror finish Centre stone sold separately — available in natural or lab-grown diamonds. Customise your carat, colour, and metal to create your one-of-a-kind heirloom.
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Twisted Bezel Cushion Solitaire
Regular price $3,499.00 AUDRegular priceUnit price / perSale price $3,499.00 AUDCELINA – Twisted Bezel Cushion Solitaire Ring
Refined and sculptural, the Celina ring features a luminous cushion-cut diamond secured within a smooth modern bezel that flows seamlessly into a twisted band. This contemporary interpretation of the classic solitaire showcases fluid movement and timeless grace, expertly handcrafted in your choice of 18K yellow gold or 18K white gold.
Band Width 2.2 mm Stone Shape Cushion Cut Setting Style Full Bezel with Twisted Band Metal Type Available in 18K Yellow Gold or 18K White Gold Soft curves meet modern precision — a contemporary symbol of strength and everlasting love.
Setting Only: Centre stone not included, allowing you to choose the perfect diamond to complete your design.
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AMARA Cushion Bezel Solitaire
Regular price From $1,800.00 AUDRegular priceUnit price / perSale price From $1,800.00 AUDRefined. Romantic. Eternally graceful.
The Amara captures the essence of enduring beauty and quiet strength. With its luminous cushion-cut diamond framed in a soft, rounded bezel setting, this design blends classic romance with contemporary sophistication. The gentle curves and mirror-like polish highlight the diamond’s radiant facets, creating a harmonious balance of brilliance and form. Handcrafted in your choice of 14K or 18K gold or Platinum 950, Amara is a timeless statement of elegance — refined, feminine, and effortlessly captivating.
Band width 2.0 mm Setting style Cushion bezel solitaire Metal options 14K or 18K Yellow, White, or Rose Gold / Platinum 950 Finish High polish Please note: The centre stone is not included with this setting, allowing you to select the perfect diamond to complete this exquisite design.
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ADELAIDE Elongated Cushion Solitaire
Regular price From $1,800.00 AUDRegular priceUnit price / perSale price From $1,800.00 AUDElongated Cushion Solitaire: Timeless Style with Modern Appeal
Refined grace, inspired by Australian elegance.
The Adelaide ring captures the essence of effortless sophistication. Featuring a handcrafted elongated cushion-cut centre diamond, it radiates a soft brilliance that feels both modern and timeless. Set upon a delicate gold band, its minimalist silhouette enhances the stone’s beauty while allowing it to shine from every angle. A true celebration of refined Australian design and understated luxury.
Band width 1.8 mm Setting style Solitaire Diamond shape Elongated Cushion Prong style Four-prong Profile Low-set, comfort fit Metal options 14K / 18K Yellow, White or Rose Gold · Platinum 950 Finish High-polish mirror finish Centre stone sold separately — available in natural or lab-grown diamonds. Customise your carat, colour, and metal to create your forever piece.
Refined Shape and Elegant Presence
The Elongated Cushion Solitaire is designed for those who appreciate a balance of classic beauty and modern sophistication. Its extended cushion shape creates a graceful outline that feels soft, elegant, and visually flattering on the hand. The solitaire setting keeps the focus on the center stone, allowing its shape and brilliance to stand out without distraction. This style is ideal for shoppers looking for a ring that feels timeless yet distinctive. With its clean lines and romantic profile, the Elongated Cushion Solitaire offers a polished look that suits both everyday wear and special moments.
A Flattering Design for Everyday Wear
One of the most appealing features of the Elongated Cushion Solitaire is its ability to make the center stone appear larger and more elegant. The elongated proportions help create a lengthening effect, giving the ring a refined and balanced appearance. This design works beautifully with a variety of personal styles, from minimal and modern to soft and romantic. Because the setting is simple and focused, it pairs easily with wedding bands or stackable rings. The result is a versatile piece that feels comfortable, stylish, and easy to wear in any setting.
Crafted for Lasting Beauty
The beauty of the Elongated Cushion Solitaire lies in its timeless simplicity and enduring appeal. Its solitaire structure highlights quality craftsmanship and allows the center stone to remain the star of the design. This makes it a strong choice for anyone seeking a ring with lasting visual impact and broad style appeal. Whether chosen for an engagement, anniversary, or meaningful gift, it delivers elegance that never feels overdone. The soft cushion corners and elongated silhouette create a sophisticated look that remains relevant through changing trends, making it a smart and beautiful choice for years to come.
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CATHERINE Pavé Cathedral with Hidden Halo
Regular price From $1,998.00 AUDRegular priceUnit price / perSale price From $1,998.00 AUDCathedral Solitaire Collection Catherine Cathedral Solitaire with Hidden Halo & Pavé Band
A modern classic of balance and brilliance, the Catherine features a refined princess-cut cathedral setting with a hidden halo and delicate pavé band. Designed to showcase your chosen centre diamond with timeless elegance and exceptional detail.
Catherine Cathedral Solitaire — Architectural Elegance with Hidden Brilliance
The Catherine Cathedral Solitaire Engagement Ring represents the perfect harmony between classic structure and contemporary refinement.
Designed with graceful cathedral shoulders, this setting elevates the centre stone while creating an elegant sense of height and presence. The clean geometric lines of the princess cut are complemented by the softness of a hidden halo beneath the diamond, adding a subtle layer of brilliance visible from every angle.
A delicate pavé-set band completes the design, introducing refined sparkle while maintaining the sophisticated simplicity of a true solitaire engagement ring.
Setting Specifications
Design Name
Catherine Cathedral Solitaire
Centre Stone Shape
Princess Cut Diamond
Setting Style
4-Claw Cathedral Solitaire with Hidden Halo
Band Width
2.0 mm
Side Stones
32 Pavé Diamonds*
Side Diamond Weight
0.32ct Total Weight*
Centre Stone Size
Suitable for 1ct – 5ct Diamonds
Metal Options
18K Yellow Gold, White Gold, Rose Gold or Platinum
Hidden Halo Detail for Subtle Extra Sparkle
A hidden halo adds an unexpected element of brilliance beneath the centre diamond. Unlike a traditional halo visible from the top view, this design detail reveals itself through movement and side angles.
The additional diamonds create beautiful flashes of light while maintaining the clean solitaire appearance from above.
This makes the Catherine an ideal choice for those who appreciate refined detail rather than an overtly embellished design.
Pavé Band with Delicate Diamond Shimmer
The slim pavé band features carefully set diamonds that create a continuous line of brilliance along the ring.
At 2.0mm wide, the band maintains an elegant, feminine profile while providing the perfect balance between comfort, durability and visual refinement.
The pavé detailing enhances the overall design without competing with the centre diamond, allowing the ring to remain sophisticated and timeless.
A Setting Designed Around Your Perfect Diamond
The Catherine is offered as a setting only, allowing you the freedom to select the perfect centre diamond to complete your engagement ring.
Choose from princess-cut diamonds in your preferred carat weight, colour and clarity, or work with our Diamond Concierge team to source a diamond that perfectly matches your vision.
Available for diamonds from 1ct to 5ct, this versatile cathedral solitaire provides an elegant foundation for a truly personalised engagement ring.
Bespoke Diamond Ring Design with AG & CO Jewellery
Every engagement ring tells a personal story. Through our bespoke design process, the Catherine can be customised with your preferred metal, diamond specifications and personalised details.
Our team provides expert diamond guidance, custom design support and detailed CAD previews to help create a ring that feels uniquely yours.
Please NoteThis listing is for the setting only. The centre diamond is not included, allowing you to select your preferred princess-cut diamond separately. Side stone quantities and total carat weights may vary slightly depending on final ring size and custom specifications.
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VICTORIA Classic Pavé
Regular price From $1,998.00 AUDRegular priceUnit price / perSale price From $1,998.00 AUDTimeless and graceful, the Victoria features a classic solitaire design accented with a delicate pavé band, adding just the right touch of brilliance. Handcrafted in 18K gold or platinum, it’s a refined symbol of elegance, designed to sparkle from every angle.
Band width 2.2 mm Side stones count 32 Side stones weight 0.281 ct Side stone colour Matched to your centre diamond Side stone clarity VVS / VS Please note: The centre stone is not included with this setting, allowing you the freedom to select the perfect diamond to complete this exquisite piece.
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ISABELLA Oval Halo Pavé Ring
Regular price From $1,898.00 AUDRegular priceUnit price / perSale price From $1,898.00 AUDISABELLA Oval Pavé Engagement Ring with Halo Sparkle
Isabella captures the essence of timeless romance, where vintage elegance meets modern refinement. Designed to enhance the beauty of an oval centre stone, this piece radiates a soft, elongated brilliance that feels both graceful and captivating
Design Details
Band Width 1.8mm Side Stones Count 44* Side Stones Weight 0.67ct* Centre Stone Size 1.00ct – 5.00ct
*Carat weight and stone count may vary slightly depending on ring size and centre stone dimensions.
Centre Stone
This setting is designed to be paired with your chosen centre diamond. The centre stone is not included, allowing you to customise your ring with a diamond that perfectly reflects your vision.
Elegant Oval Center with Brilliant Halo
The ISABELLA oval pavé engagement ring is designed for brides who love timeless beauty with a modern touch. Its oval center shape creates a graceful, lengthening effect on the finger, while the halo setting adds extra brilliance around the center stone. This style gives the ring a bold yet refined presence, making it an ideal choice for an engagement ring that feels both classic and current. The pavé band adds continuous sparkle, helping the ring shine from every angle and creating a luxurious look that stands out naturally.
Refined Pavé Detailing for Everyday Luxury
Crafted with a focus on detail, this ring features a pavé band that enhances the overall brilliance without overpowering the center design. The small, closely set stones create a smooth line of light that complements the oval shape beautifully. As an oval pavé engagement ring, it offers a balanced combination of elegance and radiance, making it suitable for daily wear as well as special moments. The halo setting boosts the visual size of the center stone, while the band’s delicate shimmer gives the piece a polished, high-end finish.
A Timeless Choice for Modern Romance
ISABELLA is made for those who want a ring that feels romantic, sophisticated, and easy to cherish for years to come. The oval silhouette is flattering and versatile, pairing well with many wedding band styles and personal tastes. The halo and pavé details work together to create a bright, unforgettable look that never feels too heavy or too simple. If you are looking for an oval pavé engagement ring with lasting appeal, this design delivers a perfect mix of sparkle, structure, and elegance. It is a beautiful symbol of love with enduring style.
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MONET - CLASSIC BEZEL
Regular price From $2,298.00 AUDRegular priceUnit price / per$1,598.00 AUDSale price From $2,298.00 AUDMonet Ring — Classic Bezel
Experience timeless elegance with the Monet. This refined classic bezel engagement ring highlights the beauty of simplicity, featuring a smooth, polished band that gently frames your chosen diamond in a sleek, modern bezel setting. Designed for those who appreciate understated luxury and everyday elegance, the Monet offers a harmonious balance of durability, brilliance, and grace
Number of side stones N/A Setting only: The centre stone is not included with this setting, allowing you the freedom to select the perfect diamond to complete this exquisite piece.
10K Yellow Gold10K White Gold14K Yellow Gold14K White Gold18K Yellow Gold18K White GoldPlatinum (950) -
Celeste Cushion Triple Band Bezel Engagement Ring
Regular price From $5,998.00 AUDRegular priceUnit price / perSale price From $5,998.00 AUDBespoke Engagement Ring Collection Celeste Cushion Triple Band Bezel Engagement Ring
A sculptural cushion diamond engagement ring featuring a refined bezel setting and distinctive triple-band silhouette, combining romantic softness with contemporary luxury.
Celeste — Sculptural Cushion Bezel Elegance
The Celeste ring celebrates the timeless beauty of the cushion-cut diamond through a sleek bezel setting and elegant triple-band design.
The soft, rounded cushion silhouette creates a romantic and refined appearance, while the layered triple-band structure adds depth, dimension and a modern architectural feel.
Setting Specifications
Setting Cushion Bezel Triple Band Design Centre Stone Cushion Diamond Sold Separately Diamond Shape Cushion Cut Soft Rounded Silhouette Band Design Triple Band Profile Sculptural Structure Metal 14K / 18K Gold Platinum 950 Available Finish High Polish Bespoke Options Available
Designed for Bespoke Creation
Celeste can be customised with your preferred cushion diamond size, colour, clarity and precious metal finish. Create a personalised engagement ring designed around your individual style and story.
Please NoteCentre stones are sold separately. Customise your preferred cushion diamond and metal finish to complete your bespoke Celeste engagement ring.
Yellow GoldWhite GoldPlatinum