18k Gold Lab Grown Diamond Ring
$2,150.00
Exquisite 3.31ct marquise and oval-cut lab-grown diamond ring in 18k solid gold. Available in white, rose, and yellow gold. IGI & BIS Hallmarked for quality and authenticity.
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 |
Sophistication meets modern brilliance in this 18k gold lab-grown diamond ring, designed to captivate with its unique combination of marquise and oval-cut lab-grown diamonds. With a total diamond weight of 3.31 carats, this stunning piece offers exceptional sparkle and an elegant silhouette. The seamless blend of oval and marquise diamonds creates a dynamic yet timeless design, perfect for those who appreciate fine craftsmanship.
Crafted in 18k solid gold, this ring is available in white, rose, and yellow gold, allowing you to personalize it to match your style. With a gold weight of 3.68 grams, it is lightweight yet durable, ensuring comfortable wear. Certified by IGI & BIS Hallmarked, this ring guarantees superior quality and authenticity. Whether worn as an engagement ring, a statement piece, or a luxurious addition to your jewelry collection, this lab-grown diamond ring is a symbol of refined elegance and modern luxury.
Product Details:
- Main Stone: Lab-Grown Diamonds
- Diamond Shape: Marquise and Oval
- Total Diamond Carat Weight: 3.31ct
- Metal: 18k Solid Gold (Available in White, Rose, and Yellow Gold)
- Gold Weight: 3.68 grams
- Certifications: IGI & BIS Hallmarked
- Shipping Time: 15-25 Business Days
- Customer Support: Available via live chats, and video calls.
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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