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Round Lab Grown Diamond Twisted Halo Engagement Ring
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The Signora Promise
Hand-finished in SuratMade to order
Reports where statedExact scope shown
Insured deliverySigned & tracked
Secure checkoutShopify checkout
Standard-design returns30-day eligibility
Final inspectionChecked before dispatch
About This Ring
Round Brilliant · Halo
Center
Round Brilliant
Carat
1 ct
CustomizableMetal
CustomizableSetting
Halo
An independent IGI grading report is included when the selected individual lab-grown center or primary diamond is 0.50 ct or larger.
| Detail | In the Photos | Customizable |
|---|---|---|
| Center Diamond | Round Brilliant · 6.40–6.50 mm · Approx. 1.00 ct | 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct |
| Halo Diamonds | 18 Round Brilliant · Approx. 0.15 ct | Scale with selected center size |
| Shank Diamonds | 32 Round Brilliant · Approx. 0.19 ct | Scale proportionally |
| Total Diamond Weight | Approx. 1.34 ct | Varies with selected center size |
| Stone Type | Lab Grown Diamond | — |
| Setting | Four-Prong Round Halo with Cathedral Open Gallery & Twisted Infinity Micro Pavé Shank | — |
| Finish · Occasion | High Polish · Engagement, Anniversary, Bridal | — |
At a glance
A round lab grown diamond twisted halo engagement ring from Signora Jewels.
The ring shown features a 6.40–6.50 mm round brilliant lab grown diamond weighing approximately 1.00 ct. Eighteen halo diamonds and thirty-two pavé diamonds total approximately 0.34 ct, bringing the total diamond weight to approximately 1.34 ct.
Made to order in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum.
Select your preferred center diamond size and precious metal using the options on this page.
The round brilliant center is secured by a four-prong basket that rises from a cathedral gallery, allowing light to reach the pavilion while keeping the diamond elevated above the shoulders. A close-fitting halo surrounds the center to emphasize its circular outline and increase its visual spread without changing the classic proportions.
The infinity shank twists beneath the halo before flowing into a polished comfort band. Thirty-two round brilliant diamonds follow the twisting shoulders, creating continuous sparkle that naturally draws attention toward the center stone. Signora Jewels crafts every ring to order in your selected precious metal and center diamond size.
Design Highlights
- Customizable round brilliant lab grown diamond from 1 ct to 4.5 ct
- Four-prong cathedral basket setting
- Round brilliant halo with eighteen accent diamonds
- Twisted infinity micro pavé shank
- Open cathedral gallery
- High polish finish
Browse more Halo Engagement Rings, explore our Engagement Ring Guide, or compare precious metals using our Metal Guide.
Diamond & Ring Details
| Specification | Details |
|---|---|
| Center Diamond | Round Brilliant · 6.40–6.50 mm · Approx. 1.00 ct (shown) |
| Halo Diamonds | 18 Round Brilliant · Approx. 0.15 ct |
| Shank Diamonds | 32 Round Brilliant · Approx. 0.19 ct |
| Total Stones | 51 |
| Total Diamond Weight | Approx. 1.34 ct |
| Center Diamond Options | 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct and 4.5 ct |
| Finish | High Polish |
Measurements are approximate. Final dimensions vary according to the selected center diamond size.
About Lab Grown Diamonds
The round brilliant cut is prized for its exceptional light return and balanced sparkle. The surrounding halo enhances the apparent size of the center, while the infinity pavé shank adds flowing brilliance that complements the classic round silhouette.
Metal, Care & Fit
Available in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum. Clean beneath the cathedral basket, around the halo and along the pavé-set infinity shank using warm water, mild soap and a soft brush to keep every diamond bright.
FAQ
What does the infinity shank add to the design?
The twisting shoulders create a flowing profile that naturally leads the eye toward the center while providing additional pavé sparkle.
Can I choose a different center diamond size?
Yes. This design is available with center diamond options from 1 ct through 4.5 ct while maintaining the same halo and infinity shank style.
Does the halo make the center diamond appear larger?
Yes. The eighteen surrounding round diamonds frame the center stone, increasing its visual presence while preserving its round outline.
Is the cathedral setting suitable for everyday wear?
Yes. The cathedral shoulders reinforce the basket, and the polished lower shank provides a comfortable fit for daily wear.
Common questions
Ring questions, answered
Timing, shipping, certification and return eligibility for made-to-order rings.
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Answers last updated August 2, 2026
When will my order ship?
Standard listed pieces are made to order with an estimated dispatch of 7 business days. Use the product-page estimate when it is more specific and the timing confirmed after ordering. Delivery timing begins after dispatch and varies by destination and carrier service. Fully custom commissions follow the production schedule confirmed with their approved specifications or CAD.
When is insured worldwide delivery free?
Orders of US$500 or more receive free express, insured and tracked worldwide delivery. Below US$500, express, insured and tracked worldwide delivery is charged at the fixed rate shown at checkout.
Will I have to pay import duties?
For every destination available at checkout, Signora prepays applicable import duties and import taxes. Customers should not be asked to pay those import charges again on delivery.
What certificate comes with my jewelry?
Every finished piece includes a Signora Jewelry Certificate. Each selected individual lab-grown center or primary diamond of 0.50 ct or above includes an IGI grading report. Below 0.50 ct, IGI can be arranged by custom request. Custom moissanite and gemstone selections include GRA documentation, with the exact scope confirmed in the approved specifications. The product page or approved specifications state the exact laboratory, report type and scope.
Can I return a made-to-order listed design?
Standard listed products are eligible for return within 30 days after carrier-recorded delivery when unworn, unused and in their original condition, with the original packaging and included documents. Normal listed choices such as metal, stone carat, chain or bracelet length, an extended ring size, or complimentary engraving do not by themselves make an item Final Sale. A sale or discount also does not imply Final Sale; only an item explicitly classified as Final Sale follows the non-returnable exclusion.
How are fully custom orders handled?
A fully custom commission is different from a listed made-to-order design. After its specifications or CAD are approved, a normal change-of-mind return does not apply. Manufacturing defects remain reviewable. Signora may accept an exceptional non-defect return case by case; documented labor and genuinely non-recoverable costs may be deducted, but these deductions are not a restocking fee.