18K Solid Gold 1 CT Round Cut Solitaire Engagement Ring
18K Solid Gold 1 CT Round Cut Natural Diamond Solitaire Engagement Ring - Side View
18K Solid Gold 1 CT Round Cut Natural Diamond Solitaire Engagement Ring - Detail | Riyanika Jewels
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18K · Natural

18K 1ct Round Cut Natural Diamond Solitaire Engagement Ring

$52,565
1ct round brilliant natural diamond | H/SI1 | 18K solid gold | GIA certified | 4 prong.
Total carat weight
1ct
Shape
Round
Diamond type
Natural
Color / clarity
H / SI1
Certification
GIA
Setting
Solitaire
Color 18K Yellow Gold
Ring Size 7

Size Guide

Your selection

Color
18K Yellow Gold
Ring Size
7
Total$52,565
  • 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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Timeless, elegant, and forever in style — the 18K Solid Gold 1 CT Round Cut Solitaire Engagement Ring is the ultimate expression of love. Featuring a breathtaking 1-carat round brilliant natural diamond, this classic solitaire design is set in a refined 4-prong setting, allowing maximum light to enter the stone for unmatched sparkle and brilliance.

Crafted from 18K solid gold, this ring radiates luxury and durability. The diamond boasts H color and SI1 clarity, ensuring an icy-white hue and exceptional clarity that will stand the test of time.

Certified by GIA for authenticity, this solitaire engagement ring is not only a stunning piece of jewelry but also a lifelong symbol of commitment. Perfect for proposals, anniversaries, or milestone celebrations.

Product Details:

  • Metal: 18K Solid Gold
  • Diamond Type: Natural Diamond
  • Total Carat Weight: 1ct
  • Diamond Cut: Round Brilliant
  • Setting: 4 Prong
  • Colour: H
  • Clarity: SI1
  • 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