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Round Lab Grown Diamond Solitaire 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 · Solitaire
Center
Round Brilliant
Carat
1 ct
CustomizableMetal
CustomizableSetting
Solitaire
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 · 5.90–6.00 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 |
| Accent Diamonds | None | — |
| Total Diamond Weight | Approx. 1.00 ct | Varies with selected center size |
| Stone Type | Lab Grown Diamond | — |
| Setting | Four-Prong Cathedral Basket with Split Shank & Open Gallery | — |
| Finish | High Polish | — |
| Occasion | Engagement · Anniversary · Bridal | — |
At a glance
A round lab grown diamond solitaire engagement ring from Signora Jewels.
The ring shown features a round brilliant lab grown diamond measuring approximately 5.90–6.00 mm and weighing approximately 1.00 ct. The elegant split shank and cathedral basket create a contemporary solitaire profile that keeps the center diamond as the focal point.
Made to order in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum.
Available with customizable center diamond sizes from 1 ct to 4.5 ct.
The four-prong cathedral basket raises the round brilliant diamond above the band, allowing light to enter through the open gallery beneath. This design maximizes brilliance while securely holding the center stone and maintaining an elegant side profile.
The split shank gradually opens as it approaches the center before flowing back into a polished comfort band. Without additional accent diamonds, the design remains clean, contemporary and entirely focused on the brilliance of the solitaire. Signora Jewels handcrafts every ring to order in your selected precious metal.
Design Highlights
- Round brilliant lab grown diamond solitaire
- Available from 1 ct to 4.5 ct
- Four-prong cathedral basket
- Split shank design
- Open gallery construction
- High polish finish
Browse our Solitaire Engagement Rings, learn more in our Engagement Ring Guide, or compare precious metals in our Metal Guide.
Diamond & Ring Details
| Specification | Details |
|---|---|
| Center Diamond | Round Brilliant · 5.90–6.00 mm · Approx. 1.00 ct (Shown) |
| Accent Diamonds | None |
| Total Stones | 1 |
| Total Diamond Weight | Approx. 1.00 ct |
| Center Diamond Options | 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct |
| Finish | High Polish |
Measurements are approximate and vary according to the selected center diamond.
About Lab Grown Diamonds
The round brilliant cut is celebrated for its exceptional brilliance and balanced proportions. Combined with the cathedral basket and open gallery, this solitaire design allows maximum light performance while maintaining a timeless appearance.
Metal, Care & Fit
Available in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum. Clean beneath the basket with warm water, mild soap and a soft brush to maintain brilliance and preserve the polished finish.
FAQ
Does this ring have any side diamonds?
No. This is a true solitaire design featuring only one round brilliant lab grown diamond.
Can I select a larger center diamond?
Yes. This design is available with center diamond sizes from 1 ct to 4.5 ct.
Why is the diamond set in a cathedral basket?
The cathedral basket elevates the center stone, improves light performance and provides excellent support for everyday wear.
Is the split shank comfortable for daily wear?
Yes. The split shoulders transition smoothly into a polished comfort-fit band designed for everyday comfort.
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.