New · Platinum Collection

Platinum Solitaire Round Brilliant

Round Brilliant · 4-Prong · 950 Platinum

The timeless classic perfected in platinum. A single round brilliant lab-grown diamond suspended in a four-prong 950 platinum basket — crafted for those who believe perfection needs no embellishment.

★★★★★ 4.9 (84 reviews)
€2,490 €9,600 Save 74%

Price includes GIA or IGI certificate & free engraving  ·  Financing available

Metal 950 Platinum
Diamond Carat 1.5ct — €2,490
Ring Size (EU) Select a size
◈ Ring Sizing Guide
GIA or IGI Certified Diamond
Free Worldwide Shipping
60-Day Full Return
Free Engraving Included
Lifetime Care & Resizing
Secure Insured Delivery
GIA or IGI grading certificate included. Every diamond is independently graded for Cut, Colour, Clarity and Carat. Ships inside the presentation box.
ShapeRound Brilliant
Diamond TypeCVD Lab-Grown
Colour GradeD–F
Clarity GradeVS1–VS2
Cut GradeExcellent / Ideal
Setting4-Prong Solitaire
Metal950 Platinum
Band Width1.8mm
CertificateGIA or IGI

Lab-grown diamonds are real diamonds — chemically, physically and optically identical to mined diamonds. Grown using CVD technology and certified by GIA or IGI, they are indistinguishable from mined stones even under gemological instruments.

  • Free fully-insured worldwide shipping · 3–7 business days
  • DHL Express delivery in a luxury presentation box
  • 60-day full-refund return policy
  • Free return shipping label included
  • Free professional cleaning once per year, for life
  • Free prong tightening and stone inspection annually
  • One free resizing within 12 months of purchase
  • Complimentary ring polishing at any time

Platinum Solitaire Round Brilliant — Timeless Perfection

The round brilliant cut is the world's most popular diamond shape — and for good reason. Its 58 precisely arranged facets are engineered to maximise light return, fire, and scintillation. In this solitaire setting, nothing distracts from the diamond's natural brilliance. Four slim prongs cradle the stone at its girdle, allowing maximum light to enter from every angle.

950 platinum is the ultimate choice for a ring meant to last a lifetime. Denser and more durable than gold, platinum holds prongs more securely and develops a rich, characterful patina over time. Its naturally white lustre will never fade or require rhodium plating — unlike white gold — making it the superior long-term investment for an engagement ring.

Each stone is independently certified by GIA or IGI, graded D–F in colour and VS1–VS2 in clarity. Free personalised engraving (up to 30 characters) is included with every order, and your ring arrives in our signature presentation box — ready to propose.

  • 58 precision-cut facets — maximum fire and light return
  • D–F colourless, VS1–VS2 clarity lab-grown diamond
  • 950 platinum — stronger than gold, naturally white forever
  • Official GIA or IGI grading certificate included
  • 4-prong basket setting — maximum light exposure
  • Free engraving up to 30 characters
  • 74% less than an equivalent mined diamond ring
Platinum Solitaire Round Brilliant — lifestyle detail
Full Specifications — Platinum Solitaire Round Brilliant
SKUGLD-PT-SOL-RB-001
Setting4-Prong Solitaire Basket
Diamond ShapeRound Brilliant
Diamond TypeCVD Lab-Grown
Carat Range0.5ct – 3.0ct
Colour GradeD–F
Clarity GradeVS1–VS2
Cut GradeExcellent / Ideal
CertificateGIA or IGI (included)
Metal950 Platinum
Band Width1.8mm
SizesEU 46–60
EngravingFree, up to 30 characters
Delivery3–7 business days, DHL Express insured
Returns60 days, full refund
4.9
★★★★★
Based on 84 reviews
5★
91%
4★
7%
3★
2%
2★
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1★
0%
Charlotte B.
Platinum Solitaire Round Brilliant · 1.5ct
3 Jan 2026
★★★★★
"The platinum finish is absolutely immaculate — so much cooler and more refined than white gold. The diamond catches every light in the room. Truly breathtaking."
◈ Verified Purchase
James W.
Platinum Solitaire Round Brilliant · 2.0ct
18 Feb 2026
★★★★★
"She cried when I opened the box. The round brilliant's sparkle is beyond anything I expected at this price point. The GIA certificate was the final touch of confidence."
◈ Verified Purchase
Nathalie & Pierre
Platinum Solitaire Round Brilliant · 1.0ct
11 Dec 2025
★★★★★
"We chose platinum specifically because of its durability and we are so glad we did. The band is solid and the prongs are immaculately set. Free engraving was a wonderful bonus."
◈ Verified Purchase
Ryan O.
Platinum Solitaire Round Brilliant · 1.5ct
5 Mar 2026
★★★★★
"Had a local jeweller assess the stone and the setting — his words were 'exceptional quality for any price point'. The savings versus mined are extraordinary. Highly recommend."
◈ Verified Purchase

950 platinum is denser, more durable, and naturally white — it will never require rhodium plating like white gold does. Over time it develops a beautiful patina rather than thinning, making it the superior long-term choice for an engagement ring worn every day.

Yes — the round brilliant's 58 facets are mathematically optimised for maximum light return, fire, and scintillation. It consistently outperforms all other diamond shapes in brilliance, which is why it remains the world's most popular engagement ring cut.

The certificate independently verifies your diamond's Cut, Colour, Clarity, and Carat weight. It also confirms the stone is lab-grown. This certificate is your proof of quality and is universally accepted by insurers and jewellers worldwide.

Yes — free engraving of up to 30 characters is included with every ring. You can add your message at checkout. Engraving is laser-etched on the interior of the band and will not affect the structural integrity of the setting.

We offer one complimentary resizing within 12 months of purchase. If you are unsure of your partner's size, we recommend ordering the most common size (EU 52–54) and resizing after the proposal. Our ring sizing guide is available on the website.

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Platinum Solitaire Round Brilliant€2,490