Portuguese Cut Diamond Ring

Discover the extraordinary brilliance of Portuguese cut diamonds. Featuring 161 precision facets, this rare diamond cut delivers unmatched fire, sparkle, and depth—perfect for statement engagement ... Read more
Discover the extraordinary brilliance of Portuguese cut diamonds. Featuring 161 precision facets, this rare diamond cut delivers unmatched fire, sp... Read more
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Diamondrensu Australia Testimonials

Wendy V, Newcastle, NSW

Couldn't be happier!!

The team at Diamondrensu were so helpful, thorough and kept us info... Read more
The team at Diamondrensu were so helpful, thoro... Read more
Diamondrensu Australia Testimonials

Vicki, Gymea

Love these ladies …. Love my ring

These ladies were awesome to deal with , such personal service….. a... Read more
These ladies were awesome to deal with , such p... Read more
Diamondrensu Australia Testimonials

Lucy Bower, Moruya, NSW

My dream ring brought to life- more amazing and Magical than I ever could have dreamed.

We Cannot thank Trina, Dhara and all the team at Diamondrensu for t... Read more
We Cannot thank Trina, Dhara and all the team a... Read more

Portuguese Cut Lab Grown Diamonds – Maximum Brilliance, Rare Precision

A Portuguese cut diamond is one of the most intricate and brilliant diamond cuts in the world. Unlike traditional round brilliant diamonds with 57–58 facets, the Portuguese cut features up to 161 expertly aligned facets, creating exceptional light dispersion, fire, and visual depth.

Originally inspired by European diamond-cutting techniques, the Portuguese cut is prized for its luxury appearance, rarity, and dramatic sparkle. When crafted using lab grown diamonds, it offers all the brilliance of a high-end mined diamond—without the ethical or environmental impact.

Why Choose a Portuguese Cut Lab Grown Diamond?

At Diamondrensu, our Portuguese cut lab grown diamonds are precision-cut to maximize brilliance while maintaining exceptional clarity and symmetry.

Key Benefits:

  • 161 Facets for Superior Sparkle – More facets mean more fire and brilliance
  • Larger Visual Appearance – Looks bigger than traditional round cuts of the same carat weight
  • 100% Lab Grown & Ethical – Conflict-free, sustainable, and eco-conscious
  • Expert Craftsmanship – Cut for optical balance and light performance
  • Exceptional Value – Premium appearance at a more accessible price point

Portuguese Cut vs Round Brilliant Diamonds

While round brilliant diamonds are timeless, a Portuguese cut diamond offers:


  • More intense sparkle due to higher facet count

  • Greater depth and light reflection

  • A distinctive, luxury look rarely seen in mainstream jewellery

This makes Portuguese cut diamonds ideal for those seeking something rare, bold, and visually striking.

Perfect for Custom Engagement Rings

Portuguese cut diamonds are especially popular in:

  • Custom engagement rings
  • Statement solitaires
  • Vintage-inspired settings
  • Heirloom-style designs

Pair your stone with yellow gold, white gold, rose gold, or platinum for a truly one-of-a-kind piece.
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Choosing the Right Size & Setting

Because of their depth and brilliance, Portuguese cut diamonds benefit from well-balanced settings that allow light to enter from multiple angles.

For best results:

  • Choose open or elevated settings
  • Ensure accurate sizing using our Ring Size Chart
  • Consider slightly lower clarity grades—Portuguese cuts mask inclusions exceptionally well

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