Our 18ct diamond engagement rings are crafted to reflect life’s most exhilarating moments, adding a radiant sparkle to both your eyes and your finger. Combining exquisite gems with precious metals. Each of our 18ct gold diamond engagement rings embodies a perfect blend of classic elegance and contemporary style.
At Watchmax UK, we use only the finest ethically sourced diamonds to create stunning designs that immortalise the unforgettable moment of saying “yes.” Discover a ring that truly captures your love story!
58% Off
18CT Diamond Engagement Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection, Single Stone Diamond Ring Collection
18ct White Gold 0.25ct Diamond Engagement Ring
£860.00
This illusion-set diamond ring is a perfect gift for someone special, showcasing a 0.25ct diamond held securely in a claw setting, complemented by an 18ct white gold band. A piece that will sparkle and delight, cherished for years to come. This ring is assay assured and includes a full British Hallmark, guaranteeing the purity of both the gold and the diamond.
- Metal: 18ct Gold
- Cut: Brilliant
- Carat (TCW): 0.25ct
- Colour: G/H
- Clarity: Si
23% Off
18CT Diamond Engagement Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection, Single Stone Diamond Ring Collection
18ct White Gold 0.25ct Emerald Cut Diamond Engagement Ring
£2,335.00
This uniquely designed white gold engagement ring features a stunning emerald-cut diamond at its center, set in premium 18-carat white gold. Its captivating sparkle and distinctive design are sure to win her heart. This item meets assay standards and is marked with a full British Hallmark, guaranteeing the authenticity and purity of the gold and diamond.
- Metal: 18ct Gold
- Cut: Emerald
- Carat (TCW): 0.25ct
- Colour: G/H
- Clarity: Si
47% Off
18CT Diamond Engagement Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection, Single Stone Diamond Ring Collection
18ct White Gold 0.35ct Diamond Engagement Ring
£1,440.00
This white gold diamond engagement ring is crafted from premium 18-carat white gold and features a 0.35-carat brilliant-cut diamond at its centre. The highly polished setting enhances its sparkle and luxurious feel. This ring complies with assay assured standards and includes a full British Hallmark, verifying the purity of the gold and diamonds.
- Metal: 18ct Gold
- Cut: Brilliant
- Carat (TCW): 0.35ct
- Colour: G/H
- Clarity: Si
55% Off
18CT Diamond Engagement Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection
18ct White Gold 0.37ct Diamond Halo Engagement Ring
£1,465.00
She’ll be captivated forever with this elegant 18-carat white gold ring set with a 0.37 carat H/Si quality diamond cluster. Featuring a stunning round diamond centre and additional side stones, this luxurious ring combines beauty and value. The piece complies with assay assured standards and is hallmarked to ensure the purity of the gold and diamonds.
- Metal: 18ct Gold
- Cut: Brilliant
- Carat (TCW): 0.37ct
- Colour: G/H
- Clarity: Si
- Diameter: 7.6mm
- Centre Stone Size (ct): 0.15ct
41% Off
18CT Diamond Engagement Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection
18ct White Gold 0.43ct H-VS Diamond Set Engagement Ring
£1,530.00
This breath taking engagement ring is elegantly polished to perfection. A 0.43-carat H-V Si quality diamond takes centre stage, offering magnificent sparkle. Set in an 18-carat white gold band, this ring is ideal for a memorable proposal. The piece is assay assured and includes a full British Hallmark, confirming the purity of the gold and diamonds.
- Metal: 18ct Gold
- Cut: Brilliant
- Carat (TCW): 0.43ct
- Colour: H
- Clarity: VS
57% Off
18CT Diamond Engagement Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection
18ct White Gold 0.50ct Baguette & Brilliant Cut Diamond Ring
£1,560.00
This exquisite ring combines vintage charm with modern luxury, showcasing radiant baguette diamonds in the centre, surrounded by brilliant cut diamonds that enhance its sparkle. Set on an 18-carat white gold band, this ring is an ideal gift for anyone who appreciates opulence and splendour. The piece meets assay assured standards and includes a full British Hallmark, confirming the purity of the gold and diamonds.
- Metal: 18ct Gold
- Cut: Baguette
- Colour: G/H
- Clarity: Vs
- Cut 2: Brilliant
- Colour 2: G/H
- Clarity 2: Vs
- Band Width: 1.4mm
57% Off
18CT Diamond Engagement Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection
18ct White Gold 0.50ct Diamond Engagement Ring
£2,015.00
This exquisite engagement ring, featuring a magnificent 0.50ct solitaire diamond, exudes luxury. The handcrafted 18ct white gold band completes its substantial design, making it a flawless piece she’ll be proud to wear. Assay assured, this ring includes a full British Hallmark, confirming the purity of both the gold and diamond.
- Metal: 18ct Gold
- Cut: Brilliant
- Carat (TCW): 0.50ct
- Colour: G/H
- Clarity: Si
43% Off
18CT Diamond Engagement Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection
18ct White Gold 0.50ct G/-Si Diamond Square Halo Ring
Price range: £1,290.00 through £1,650.00
Crafted in 18-carat white gold, this square halo-style ring is adorned with round diamonds totalling 0.50 carats, offering a stunning sparkle that enhances its elegant design. This item complies with assay assured and has a full British Hallmark verifying its authenticity and gold purity.
- Metal: 18ct Gold
- Diamond Weight: 0.5ct
- Cut: Princess
- Colour: G/H
- Clarity: Si
- Cut 2: Brilliant
- Colour 2: G/H
- Clarity 2: Si
- Head Size: 8.0 x 8.0mm
37% Off
18CT Diamond Engagement Ring Collection, 18CT Gold Diamond Dress Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection
18ct White Gold 0.50ct H/SI Diamond Rectangular Halo Style Ring
£1,775.00
Featuring a rectangular halo design, this 18ct white gold ring showcases 0.50ct of beautifully cut rectangular diamonds. It’s a timeless and striking choice to express your love. This item complies with assay assured and has a full British Hallmark verifying its authenticity and gold purity.
- Metal: 18ct Gold
- Diamond Weight: 0.5ct
- Cut: Baguette
- Colour: G/H
- Clarity: Vs
- Cut 2: Brilliant
- Colour 2: G/H
- Clarity 2: Vs
- Head Size: 8.5 x 10.2mm
55% Off
18CT Diamond Engagement Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection
18ct White Gold 0.50ct Princess Cut Centre Diamond Certified Ring
£1,530.00
This luxurious princess-cut diamond ring with side stones is a timeless piece she’ll cherish forever. Handcrafted with 0.50 carat of dazzling diamonds in 18-carat white gold, the ring features an elegantly designed centre that enhances its splendour. Perfect for marking a special occasion, this jewellery meets assay assured standards and carries a full British Hallmark, ensuring the purity of the gold and diamonds.
- Metal: 18ct Gold
- Cut: Princess
- Colour: G/H
- Clarity: Si
- Cut 2: Baguette & Brilliant
- Colour 2: G/H
- Clarity 2: Si
- Head Size: 7.6 x 7.6mm
- No of Stones: 6 per shoulder
52% Off
18CT Diamond Engagement Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection
18ct White Gold 0.50ct Princess Cut Diamond Ring
£1,345.00
Elegant and sophisticated, this princess-cut diamond ring features 0.50 carats of G/H Si quality diamonds, creating a stunning sparkle. Set in a polished 18-carat white gold band, this ring looks and feels luxurious. The item meets assay assured standards and includes a full British Hallmark to ensure the purity of the gold and diamonds.
- Metal: 18ct Gold
- Cut: Princess
- Carat (TCW): 0.50ct
- Colour: G/H
- Clarity: Si
- Top Width: 3.3mm
- Back Width: 2.2mm
- No of Stones: 5 per shoulder
45% Off
18CT Diamond Engagement Ring Collection, Diamond Ring Collection, Luxury Diamond Jewellery Collection
18ct White Gold 0.55ct Diamond Split Shoulder Halo Ring
£1,585.00
This exquisite diamond ring radiates luxury and elegance with its 0.55 carats of high-quality diamonds set in UK hallmarked 18-carat white gold. The design, featuring a beautifully crafted centre, adds to its luxurious appeal. Perfect for marking a special occasion, this ring complies with assay assured standards and is hallmarked to ensure the purity of both the gold and diamonds.
- Metal: 18ct Gold
- Cut: Brilliant
- Colour: G/H
- Clarity: Si
