Round Heart-Tip Bypass Crossover Solitaire Lab Grown Diamond Engagement Ring 1.25ctw
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 Heart-Tip Bypass Crossover Solitaire Lab Grown Diamond Engagement Ring tells a love story in every line. A dazzling 1.25ctw round lab grown center diamond is secured by four heart-tipped claw prongs — delicate heart silhouettes that peek out from each corner of the setting, adding an intimate detail that only those who look closely will discover. Narrow rectangular slot cutouts open the gallery to light, ensuring the lab grown diamond glows brilliantly from every angle.
The defining feature of this ring is its bypass crossover shank — one polished rail sweeps diagonally over the other as it rises to meet the setting, the two bands crossing in a fluid, asymmetric movement that cradles the stone from below. Viewed from above, the crossover creates a dynamic diagonal tension across the base of the lab grown diamond, giving the ring a sense of motion and intention that sets it apart from any conventional solitaire design.
Available in 10K/14K/18K White, Yellow, or Rose Gold and Platinum.
Ring Details
Item No. - R-DOC-140
Total Carat Weight - 1.25
Approx Gold Weight - 3.14g - 6.09g (Varies by metal type)
Setting Type - 4-Prong Heart-Tip Claw with Rectangular Slot Gallery Cutouts
Center Diamond Details
Stone Type - Lab Grown Diamond
Carat Weight - 1.25
Shape - Round
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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