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Radiant Cut Lab Grown Diamond Hidden 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
Radiant Cut · Halo
Center
Radiant Cut
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 | Radiant Cut · 9.20 × 7.10 mm · Approx. 3.00 ct | 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct |
| Hidden Halo | 22 Round Brilliant Diamonds · Approx. 0.10 ct | Scales with selected center size |
| Shoulder Diamonds | 4 Marquise Cut Diamonds · Approx. 0.10 ct | Scales proportionally |
| Total Diamond Weight | Approx. 3.20 ct | Varies with selected center size |
| Stone Type | Lab Grown Diamond | — |
| Setting | Four-Prong Cathedral Basket with Hidden Halo | — |
| Finish · Occasion | High Polish · Engagement, Anniversary, Bridal | — |
At a glance
A radiant cut lab grown diamond hidden halo engagement ring from Signora Jewels.
The ring shown features a 9.20 × 7.10 mm radiant cut lab grown diamond weighing approximately 3.00 ct. Twenty-two round brilliant diamonds form the hidden halo while four marquise accent diamonds decorate the shoulders for approximately 0.20 ct of accent diamonds.
Made to order in 11 metals: 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 9.20 × 7.10 mm radiant cut center sits in a four-prong cathedral basket that keeps the corners secure while leaving the pavilion open to light. The hidden halo sits beneath the center stone instead of around its outline, so from above the radiant remains the clear focal point while extra brilliance appears as the ring moves.
Four marquise accent diamonds are positioned along the shoulders, creating a graceful transition into the slim band without overpowering the center. The cathedral shoulders lift the basket above the finger while the open gallery keeps the profile light and makes cleaning beneath the center easier. Signora Jewels crafts every ring to order in your selected precious metal and diamond size.
Design Highlights
- Customizable radiant cut lab grown diamond from 1 ct to 4.5 ct
- Four-prong cathedral basket
- Hidden halo with 22 round brilliant diamonds
- Four marquise shoulder accent diamonds
- Open gallery construction
- High polish finish
Browse more Solitaire Engagement Rings, explore our Engagement Ring Guide, or compare precious metals using our Metal Guide.
Diamond & Ring Details
| Specification | Details |
|---|---|
| Center Diamond | Radiant Cut · 9.20 × 7.10 mm · Approx. 3.00 ct (shown) |
| Hidden Halo | 22 Round Brilliant Diamonds · Approx. 0.10 ct |
| Shoulder Diamonds | 4 Marquise Cut Diamonds · Approx. 0.10 ct |
| Total Stones | 27 |
| Total Diamond Weight | Approx. 3.20 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 radiant cut combines the crisp outline of an emerald shape with the sparkle of a brilliant facet arrangement. The hidden halo adds light beneath the center while preserving the clean outline of the radiant when viewed from above.
Metal, Care & Fit
Available in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum. Clean beneath the hidden halo and around the marquise shoulder diamonds using warm water, mild soap and a soft brush to maintain maximum brilliance.
FAQ
What is the advantage of a hidden halo?
The hidden halo sits beneath the center stone, adding sparkle from side angles while keeping the top view focused on the radiant cut diamond.
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 overall style.
Why are marquise diamonds used on the shoulders?
Their elongated shape creates a graceful transition into the center basket without adding the visual weight of larger round accents.
Is the cathedral basket comfortable for everyday wear?
Yes. The cathedral shoulders support the basket from both sides while the slim band keeps the ring balanced for regular 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.