Round Cushion Halo Lab Grown Diamond Engagement Ring 1.67ctw
All Runivi rings are sized in US sizing. Sizes highlighted are the most commonly ordered (US 6–7½).
| US Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 4 | 14.9 | 46.8 |
| 4½ | 15.3 | 48.0 |
| 5 | 15.7 | 49.3 |
| 5½ | 16.1 | 50.6 |
| 6 | 16.5 | 51.9 |
| 6½ | 16.9 | 53.1 |
| 7 | 17.3 | 54.4 |
| 7½ | 17.7 | 55.7 |
| 8 | 18.1 | 57.0 |
| 8½ | 18.5 | 58.3 |
| 9 | 18.9 | 59.5 |
| 9½ | 19.4 | 60.8 |
| 10 | 19.8 | 62.1 |
| 10½ | 20.2 | 63.4 |
| 11 | 20.6 | 64.7 |
| 11½ | 21.0 | 66.0 |
| 12 | 21.4 | 67.2 |
| 13 | 22.2 | 69.8 |
✔ Most commonly ordered: US 6, 6½, 7, 7½
Quick Tips
- Measure at the end of the day, when fingers are largest.
- Snug, not tight — the ring should pass your knuckle with slight resistance.
- Wider bands (4mm+) fit tighter — consider sizing up half a size.
- Between two sizes? Always size up.
- In stock, ready to ship
Our Round Cushion Halo Lab Grown Diamond Engagement Ring combines timeless romance with modern sophistication. A stunning 1.30ctw round lab grown center diamond is elevated in a classic 4-prong setting and beautifully framed by a cushion-shaped halo of pavé-set round lab grown diamonds, creating an impressive 1.67 total carat weight.
The cushion halo amplifies the brilliance of the center stone and creates a soft, romantic silhouette that is both distinctive and timeless. Delicate pavé lab grown diamonds on the gallery beneath the halo add a touch of hidden sparkle, ensuring the ring shines from every angle. The plain polished shank tapers elegantly toward the setting, keeping the focus on the breathtaking halo centerpiece.
Available in 10K/14K/18K White, Yellow, or Rose Gold and Platinum.
Ring Details
Item No. - R-DOC-101
Total Carat Weight - 1.67
Approx Gold Weight - 5.28g - 10.25g (Varies by metal type)
Setting Type - Cushion Halo with Plain Polished Shank
Center Diamond Details
Stone Type - Lab Grown Diamond
Carat Weight - 1.30
Shape - Round
Color - E-F
Clarity - VS1-VS2
Side Diamond Details
Stone Type - Lab Grown Diamond
Total Carat Weight - 0.37
Shape - Round lab grown diamonds (cushion halo + gallery pavé)
Color - E-F
Clarity - VS1-VS2
Your Order Includes
* Free Shipping
* Delivered in Discreet Packaging
* Complimentary Professional Appraisal & IGI Certificate (if applicable)
* Free Lifetime Warranty
Every RUNIVI item is custom-made after your order is placed. We offer free and fully-insured shipping on all orders within US and Canada. Estimated delivery time is 10-12 business days from the date of your purchase.
If you are not 100% satisfied with your purchase, returns are accepted within 30 days of delivery. Learn more about our shipping & return policy.
Why Shop with us
Lifetime Warranty
IGI & Appraisal Certificate
Free Resizing & Shipping
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