18K Solid Gold 3ct Round Brilliant Natural Diamond in Classic 4 Prong Solitaire Engagement Ring
18K Solid Gold 2.5ct Round Brilliant Natural Diamond in Classic 4 Prong Solitaire Engagement - Side View | Riyanika Jewels
18K Solid Gold 2.5ct Round Brilliant Natural Diamond in Classic 4 Prong Solitaire Engagement Ring - Detail | Riyanika Jewels
18K Solid Gold 2.5ct Round Brilliant Natural Diamond in Classic 4 Prong Solitaire Engagement - Close Up | Riyanika Jewels
18K Solid Gold 2.5ct Round Brilliant Natural Diamond in Classic 4 Prong Solitaire - Alternate Angle
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18K · Natural

18K 2.5ct Round Cut Natural Diamond Brilliant Classic Prong Solitaire Engagement Ring

$251,018
2.5ct | 18K solid gold | GIA certified.
Total carat weight
2.5 ct
Shape
Round
Diamond type
Natural
Certification
GIA
Setting
Solitaire
Color 18K Yellow Gold
Ring Size 7

Size Guide

Your selection

Color
18K Yellow Gold
Ring Size
7
Total$251,018
  • GIA Certified
  • Free Shipping
  • 30-Day Returns
  • Free Engraving
  • 24/7 Support
  • Lifetime Warranty

FedExUPS Secure Insured worldwide shipping. Estimated delivery Nov 14 – Nov 24.

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18K Engagement Rings·2.5ct Natural Diamond Engagement Ring·Engagement Rings·Natural Diamond Engagement Ring·Natural Diamond Engagement Ring Under 30000 Dollars·Natural Diamond Rings·Prong Setting Natural Diamond Engagement Ring·Round Cut Natural Diamond Engagement Ring·Solitaire Setting Natural Diamond Engagement Ring

Embody timeless elegance with our 18K Solid Gold 2.5ct Round Brilliant Solitaire Engagement Ring, a true icon of everlasting love. At its heart lies a magnificent round brilliant-cut natural diamond, weighing 2.50 Ctw and measuring approximately 9.09 x 9.15 x 5.76 mm—a stone of captivating brilliance and fire.

Graded G color and VS2 clarity, this exceptional diamond is showcased in a classic 4-prong setting, designed to elevate the stone and allow maximum light reflection. The sleek, minimalist 1.8 mm band in rich 18K gold enhances the beauty of the center stone without distraction.

Perfect for the bride who values tradition and brilliance, this solitaire ring is a timeless choice for engagements, crafted with precision and certified by both GIA for authenticity and quality.

Product Details:

  • Metals: 18K Solid Gold
  • Stones: Natural Diamonds
  •  Ring Dimensions: 1.8 mm thickness / 1.8 mm width
  • Color & Clarity: G-VS2
  • Quantity: 1
  • Shape: Round
  • Dimension: 9.09 X 9.15 X 5.76 mm (Approx.)
  • Weight: 2.50 Ctw
  • Setting: Prongs
  • Certifications: GIA Certified
  • Shipping Time: 15-22 days

Frequently Asked Questions

Can this ring be made in my size?
Yes. We make every ring to order in your preferred size, including sizes not listed on our website. Use our size guide or message us on WhatsApp if you're unsure.
What gold options are available?
Our rings are available in 14K and 18K solid gold in yellow, white, or rose gold. 18K is our signature tier; 14K offers the same designs at a more accessible price.
Is this ring made with solid gold?
Yes. All Riyanika rings are made with solid 14K or 18K gold. We do not use gold-plated, gold-filled, or vermeil.
Can I choose natural or lab-grown diamonds?
Yes. Both options are available. Natural diamonds are GIA certified; lab-grown diamonds are IGI certified. Both are chemically and optically identical — the difference is origin and price.
Can the diamond size or shape be customized?
Yes. We can adjust the carat weight and diamond shape to suit your preference. Share your requirements with us on WhatsApp before placing your order.
Is engraving available?
Yes. We offer complimentary engraving on most rings. Provide your preferred text or initials when placing your order.
Will my ring come with a diamond certificate?
Yes. Natural diamonds are certified by the Gemological Institute of America (GIA); lab-grown diamonds are certified by the International Gemological Institute (IGI). Both certificates are included with your order.
Can I see a design preview before production begins?
Yes. For customized or bespoke pieces we provide a CAD (computer-aided design) preview before production starts, so you can approve the design first.
How long does delivery take?
We offer worldwide free shipping. Orders are usually dispatched within 15–22 business days. Shipping time varies by location but generally ranges from 5–7 business days.

Need Help?

Have a question about customization, sizing, or diamonds? Chat with our jewelry specialists on WhatsApp for personalized assistance.

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Loved By Customers

Loved by repeat buyers across the world

That's why we keep coming back.
Josh, Singapore Repeat buyer
I LOVE them — so happy! I can't believe I forgot to message you.
Kate N., Singapore Repeat buyer
Love it, Pri — thank you. Looks gorgeous.
Keshwin, Singapore Diamond eternity band