18K Solid Gold 8.9ct Solitaire Lab Grown Diamond Engagement Ring
$4,975.00
A luxurious 8.9ct solitaire lab-grown diamond engagement ring, with a 2ct oval-cut center stone and 6.89ct of round diamonds set in 18k solid gold.
Ring Size Guide
How to Measure the Inside Diameter
If you have a ring that already fits you well:
- Place the ring flat on a ruler.
- Measure the distance straight across the inside of the ring (from one inner edge to the opposite inner edge).
- This measurement (in millimeters) is the inside diameter of your ring.
- Match this number with the chart to find your ring size.
Need Help?
If you’re unsure about your size, our experts at The Karat Store are here to guide you.
💬 WhatsappChat: +16475473342
🌐 Mail us at: contact@thekaratstore.us
| US Size | Inside Diameter (mm) | Inside Circumference (mm) |
| 3 | 14.1 | 44.3 |
| 3.5 | 14.5 | 45.6 |
| 4 | 14.9 | 46.8 |
| 4.5 | 15.3 | 48.1 |
| 5 | 15.7 | 49.3 |
| 5.5 | 16.1 | 50.6 |
| 6 | 16.5 | 51.9 |
| 6.5 | 16.9 | 53.1 |
| 7 | 17.3 | 54.4 |
| 7.5 | 17.7 | 55.6 |
| 8 | 18.1 | 56.9 |
| 8.5 | 18.5 | 58.1 |
| 9 | 19 | 59.7 |
| 9.5 | 19.4 | 61 |
| 10 | 19.8 | 62.2 |
| 10.5 | 20.2 | 63.5 |
| 11 | 20.6 | 64.7 |
| 11.5 | 21 | 66 |
| 12 | 21.4 | 67.2 |
| 12.5 | 21.8 | 68.5 |
| 13 | 22.3 | 70.1 |
| 14 | 23.2 | 72.9 |
Indulge in the opulence of this 18k Solid Gold 8.9ct Solitaire Lab Grown Diamond Engagement Ring. A true statement piece, this ring features a 2ct oval-cut lab-grown diamond as the center stone, with Super Cut grading, F color, and VS2 clarity. The brilliance and luster of the center stone are unparalleled, making it a perfect symbol of everlasting love.
Complementing the center stone, the 6.89ct of round lab-grown diamonds (total) on the band add extra sparkle and radiance. Designed with precision and elegance, this 5mm wide band in 18k solid gold offers both beauty and comfort, making it a truly unforgettable engagement ring. Available in White, Rose, or Yellow Gold, this piece is both sustainable and luxurious, certified with IGI & BIS Hallmarked for quality and authenticity.
Product Details :
- Center Diamond Type: Lab-Grown Diamond
- Center Diamond Shape: Oval
- Center Diamond Carat Weight: 2 ct
- Center Diamond Color: F
- Center Diamond Clarity: VS2
- Center Diamond Cut Grading: Super Cut
- Center Diamond Brilliance/Luster: Excellent
- Side Gemstone Type: Lab-Grown Diamonds
- Side Gemstone Shape: Round
- Side Diamond Carat Weight: 6.89 ct (Total)
- Minimum Number of Diamonds: 51
- Metal: 18k Solid Gold (Available in White, Rose, or Yellow Gold)
- Material: Lab-Grown Diamond
- Rhodium Plate: No
- Certifications: IGI & BIS Hallmarked
- Shipping Time: 15-25 Business Days
- Customer Support: Available via live chat and video calls.
- Band Width: 5 mm
- Band Height: 4.4 mm
- Band Fit: Comfort
We offer free shipping across the USA 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@thekaratstore.us.
Thank you for shopping with The Karat Store US!
We take pride in offering high-quality jewelry and providing the necessary certifications to ensure your peace of mind. Below is a breakdown of the certification process for each product type:
Lab-Grown Solitaire Jewelry: Certified by the International Gemological Institute (IGI) for authenticity and quality.
Gemstone Jewelry: Accompanied by a detailed Gemologist Report.
- Certified by YGA (Your Gemologist Associatio.
- Optional Certification: For IGI or GIA certification, available upon request. Please note that this comes with a 30-40 day waiting period and an additional charge.
Moissanite Jewelry: Certified by the Gemological Research Association (GRA) with a comprehensive report.
For more details, Check out our certification information page.
To keep your jewelry from The Karat Store looking its best, follow these simple care tips:
- Clean Regularly: Use a mild soap and water solution, gently scrub with a soft brush, rinse, and dry with a soft cloth.
- Store Safely: Keep your jewelry in a dry place, in a jewelry box or soft pouch, and separate pieces to avoid scratches.
- Avoid Chemicals: Remove jewelry before swimming or using cleaning products to prevent exposure to harsh chemicals.
- Handle with Care: Avoid wearing jewelry during activities that may cause damage, such as exercising or heavy lifting.
- Inspect Periodically: Check for loose stones or worn settings. Contact us for repairs if needed.
By following these tips, you can ensure your 14k gold jewelry remains beautiful for years to come. For any questions, contact us at thekaratstore@gmail.com.

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