18K 1.5ct Natural Diamond Round Cut Toi et Moi Engagement Ring

SKU: RIY00124-18N

$8,400
1.51ct pear & round natural diamond | SI1 | 18K solid gold | GIA certified.
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GIA Certified
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FedEx UPS Secure Insured worldwide shipping. Estimated delivery Jul 1 – Jul 11.

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Modern elegance meets timeless charm with this 18K Solid Gold 1.51 Ct Pear & Round Cut Diamond Bypass Engagement Ring. The design features a striking 1.00-carat pear brilliant-cut diamond at its center, gracefully paired with shimmering round diamond side stones. Together, the bypass style creates a fluid, contemporary silhouette with a total carat weight of 1.51 carats.

Crafted in solid 18K gold, the band showcases a refined prong setting that enhances each diamond’s brilliance. With a superior H color grade and SI1 clarity, the diamonds radiate exceptional fire and sparkle, giving the ring a near-flawless appeal. The bypass design symbolizes two paths joining into one, making it a romantic choice for engagements and meaningful milestones.

Every diamond is GIA certified for authenticity, ensuring purity and expert craftsmanship. A perfect balance of sophistication and modern style, this ring is designed to shine for a lifetime.

Product Details:

  • Metal: 18K Solid Gold
  • Diamond Type: Natural Diamond
  • Center Stone: Pear Brilliant Cut Diamond (1.00 Carat)
  • Side Stones: Round Diamonds
  • Total Carat Weight: 1.51ct
  • Diamond Cut: Pear & Round
  • Setting: Prong
  • Color: H
  • Clarity: SI1
  • Certifications: GIA Certified
  • Shipping Time: 15-22 days

Shipping Information

We offer free shipping across the World on all orders—no minimum required.

  • Processing & Handling: 5–10 business days
  • Shipping Time: 10–15 business days
  • Total Delivery Time: 15–25 business days from the date of order
  • Carriers: USPS & UPS

Please inspect your package upon delivery for any damage or tampering before signing.

For assistance, contact us at contact@riyanikajewels.com

At Riyanika Jewels, every piece is crafted in solid gold — 18K as our signature, with 14K available across our full catalogue for customers who want a more accessible entry price or everyday-wear durability. Every design ships with certifications that verify the authenticity and quality of both the metal and the stones.

Gold Certification

Every Riyanika piece is solid gold, with the official government-recognized certification that guarantees purity and authenticity — 75% pure gold for 18K, 58.5% pure gold for 14K. Same transparency either way.

Lab-Grown Diamond Jewelry

Our lab-grown diamond jewelry is certified by the International Gemological Institute (IGI). Each certificate verifies the diamond's authenticity, along with detailed grading of cut, clarity, color, and carat weight—ensuring you receive a diamond of the highest standard.

Natural Diamond Jewelry

All natural diamond solitaires and center stones are graded by the Gemological Institute of America (GIA), the world's most trusted authority in diamond grading. Each purchase includes the corresponding GIA certificate.

Gemstone Jewelry

Every gemstone piece is accompanied by a detailed Gemologist Report, offering an in-depth analysis of the stone's unique characteristics.

Optional Certification: Customers may request IGI or GIA certification on any piece. This service requires an additional fee and may take 30–40 days for processing.

At Riyanika Jewels, every piece is crafted in solid gold — 18K as our signature, or 14K for those who prioritize everyday durability — and set with Natural or Lab-Grown Diamonds. The care guidance below is the same whichever karat you choose.

1. Clean Regularly

Gently clean your jewelry using a mild soap and lukewarm water solution. Use a soft brush to remove dirt, rinse thoroughly, and dry with a soft lint-free cloth.

2. Store Safely

Keep your jewelry in a dry place, ideally in a jewelry box or soft pouch. Store pieces separately to prevent scratches and tangling.

3. Avoid Harsh Chemicals

Remove your jewelry before swimming, bathing, or using cleaning products. Chemicals such as chlorine and detergents can damage both gold and diamonds.

4. Handle with Care

Avoid wearing your jewelry during strenuous activities like exercising, gardening, or heavy lifting. This prevents accidental knocks, scratches, or loosening of stones.

5. Inspect Periodically

Check your jewelry regularly for loose stones or worn settings. If you notice any issues, contact us immediately for professional repair and maintenance.

By following these tips, your Riyanika Solid Gold Natural or Lab-Grown Diamond Jewelry will remain stunning for years to come.

For any questions or assistance, feel free to reach out to us at contact@riyanikajewels.com.

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