Custom Platinum Engagement Rings

Platinum offers a naturally white finish that highlights the brilliance of diamonds. Its strength and durability make it a practical choice for an engagement ring you can wear every day.

At A.G Designer Jeweller, our Brisbane jewellers combine carefully selected natural diamonds with platinum to create custom engagement rings, with every detail considered from the diamond setting to the band design.

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Showing: 77 Results
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Art Nouveau-Style Cluster Ring in Platinum

0.61ct round brilliant cut Argyle pink diamond

Art Nouveau-Style Cluster Ring in Platinum
$88,000.00
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Champagne Diamond Cluster Engagement Ring

4.31ct Champagne Diamond Cluster Ring

Champagne Diamond Cluster Engagement Ring
$60,000.00
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2ct Round Brilliant Cut Diamond Solitaire

A.G 2.03ct round brilliant cut diamond six claw setting with half round edge band.

2ct Round Brilliant Cut Diamond Solitaire
$43,000.00
2ct Round Brilliant Cut Diamond Solitaire
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5ct Round Brilliant Cut Diamond Engagement Ring

5.01 ct round brilliant cut, E colour, SI2 clarity

5ct Round Brilliant Cut Diamond Engagement Ring
$178,000.00
5ct Round Brilliant Cut Diamond Engagement Ring
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AG.01 | 1.50ct Cushion Cut Diamond Engagement Ring

A.G cushion cut diamond four claw setting with grain set graduated diamond band.

AG.01 | 1.50ct Cushion Cut Diamond Engagement Ring
$26,500.00
AG.01 | 1.50ct Cushion Cut Diamond Engagement Ring
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AG.01 | 1.5ct Round Brilliant Cut Diamond Engagement Ring

A.G round brilliant cut diamond four claw setting with grain set graduated diamond band.

AG.01 | 1.5ct Round Brilliant Cut Diamond Engagement Ring
$25,000.00
AG.01 | 1.5ct Round Brilliant Cut Diamond Engagement Ring
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Round Brilliant Cut Diamond Engagment Ring

1.01ct G colour, SI2 clarity

Round Brilliant Cut Diamond Engagment Ring
$12,000.00
Round Brilliant Cut Diamond Engagment Ring
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2ct Pear Cut Diamond Solitaire Engagement Ring in 18ct Gold

2.25ct pear cut D/SI2 diamond

2ct Pear Cut Diamond Solitaire Engagement Ring in 18ct Gold
$43,500.00
2ct Pear Cut Diamond Solitaire Engagement Ring in 18ct Gold
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AG.32 | Emerald Cut Diamond Trilogy Engagement Ring

A.G emerald cut and tapered baguette diamond engagement ring

AG.32 | Emerald Cut Diamond Trilogy Engagement Ring
From $7,000
AG.32 | Emerald Cut Diamond Trilogy Engagement Ring
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AG.30 | Cushion Cut Diamond Solitaire Engagement Ring

A.G cushion cut diamond solitaire engagement ring

A.G cushion cut solitaire with a round profile band.
From $7,000
A.G cushion cut solitaire with a round profile band.
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AG.31 | Oval Diamond Trilogy with Diamond Band

A.G oval cut diamond trilogy engagement ring with a split bead diamond band engagement ...

A.G oval cut trilogy with split bead diamond band.
From $7,000
A.G oval cut trilogy with split bead diamond band.
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AG.29 | Oval Cut Diamond Trilogy Engagement Ring

A.G oval cut diamond trilogy engagement ring

AG.29 | Oval Cut Diamond Trilogy Engagement Ring
From $7,000
AG.29 | Oval Cut Diamond Trilogy Engagement Ring
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Toi et Moi Diamond Ring

A.G 1.56ct cushion cut champagne diamond and 0.52ct pear cut diamond ring

A.G 1.56ct cushion cut champagne diamond and 0.52ct pear cut diamond ring
$12,800.00
A.G 1.56ct cushion cut champagne diamond and 0.52ct pear cut diamond ring
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Round Brilliant Cut Trilogy

A.G Round Brilliant Cut Trilogy Diamond

Round Brilliant Cut Trilogy
$16,000.00
Round Brilliant Cut Trilogy
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Round Brilliant Cut Diamond Engagement Ring

1.23ct F colour, SI2 clarity

Round Brilliant Cut Diamond Engagement Ring
$16,000.00
Round Brilliant Cut Diamond Engagement Ring
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AG.31 | Oval Trilogy Diamond Engagement Ring

A.G oval diamond trilogy ring

AG.31 | Oval Trilogy Diamond Engagement Ring
$20,000.00
AG.31 | Oval Trilogy Diamond Engagement Ring
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Oval Diamond Engagement Ring

1.27ct F colour, SI1 clarity

Oval Diamond Engagement Ring
$15,000.00
Oval Diamond Engagement Ring
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Marquise Diamond Engagement Ring in 18ct Yellow Gold

1ct, G colour, SI2 clarity Diamond

Marquise Diamond Engagement Ring in 18ct Yellow Gold
$12,800.00
Marquise Diamond Engagement Ring in 18ct Yellow Gold
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AG.15 | Radiant Cut Diamond Trilogy Engagement Ring

A.G radiant cut diamond trilogy engagement ring

A.G radiant cut trilogy with half round band.
From $7,000
A.G radiant cut trilogy with half round band.
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AG.06 | Radient Cut Diamond Halo Engagement Ring

A.G radiant cut diamond engagement ring with a split bead diamond band

A.G 3.01ct radiant cut diamond engagement ring.
From $7,000
A.G 3.01ct radiant cut diamond engagement ring.
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