A beautiful beginning
Your cart is empty
Begin with one of our most-loved collections and find a piece made for you.
Shop best sellers- Made to order in Surat
- Insured worldwide delivery
- Secure Shopify checkout
Round Lab Grown Diamond Solitaire Engagement Ring
1 of 10
The Signora Promise
Hand-finished in SuratMade to order
IGI Report IncludedExact 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 diamond is 1.00 ct or larger. Its report number is laser-inscribed on that report-bearing center diamond. Accent and side diamonds are matched and inspected to Signora Standards and are not individually laboratory graded.
| Detail | In the photos | Customizable |
|---|---|---|
| Center diamond | Round Brilliant · 7.50 mm · approx. 1.50 ct | 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct |
| Hidden gallery diamond | 1 Round Brilliant · approx. 0.01 ct | Fixed design |
| Total diamond weight | Approx. 1.51 ct | Varies with center size |
| Stone type | Lab Grown Diamond | — |
| Setting | Six-Prong Cathedral Open Basket with Hidden Gallery Diamond | — |
| Finish · Occasion | High Polish · Engagement, Anniversary, Bridal | — |
At a glance
A round lab grown diamond solitaire engagement ring from Signora Jewels.
An approximately 1.50 ct round brilliant measuring 7.50 mm is secured in a six-prong cathedral basket with a hidden gallery diamond totaling approximately 0.01 ct.
Made to order in 11 metals: Silver, 9K/14K/18K Gold (Yellow, White and Rose) and Platinum.
Each metal color is shown in the photos. Choose your preferred center diamond weight and metal from the options on this page.
The six-prong cathedral basket lifts the round brilliant into the light while keeping the outline balanced from every angle. At Signora Jewels, a single hidden gallery diamond is placed beneath the center stone, creating a subtle flash of brilliance that is only visible from the side without changing the clean solitaire appearance from above.
The approximately 1.90 mm comfort-fit shank creates a refined profile that naturally leads toward the elevated center. The open gallery allows light to reach the pavilion while the approximately 6.90 mm setting height gives the ring an elegant side view that remains comfortable for everyday wear.
Browse our engagement rings, compare diamond shapes in the diamond stone guide, or explore precious metal options in our metal guide.
Design highlights
- Round brilliant center shown at approximately 1.50 ct
- Customizable center diamond from 1 ct to 4.5 ct
- Six-prong cathedral open basket
- Hidden gallery diamond totaling approximately 0.01 ct
- Open gallery for enhanced light performance
- Comfort-fit shank approximately 1.90 mm wide
The hidden gallery diamond adds a discreet detail that rewards a closer look while preserving the timeless simplicity of the solitaire. The six evenly spaced prongs keep the round brilliant secure and visually balanced from every viewing angle.
Diamond & Ring Details
| Specification | Details |
|---|---|
| Center stone | Round Brilliant · 7.50 mm · approx. 1.50 ct (shown) |
| Accent diamonds | 1 Round Brilliant · approx. 0.01 ct total |
| Total weight / count | Approx. 1.51 ct · 2 Diamonds |
| Setting | Six-Prong Cathedral Open Basket with Hidden Gallery Diamond |
| Center 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. Your selected center diamond weight determines the final proportions of the finished ring.
About Lab Grown Diamonds
The round brilliant is engineered to maximize light return through its symmetrical facet pattern. Every center diamond is F color, VS1 clarity and , selected to complement the classic proportions of this cathedral solitaire.
Metal, Care & Fit
Available in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum. Clean beneath the open basket and around the hidden gallery diamond using warm water, mild soap and a soft brush to maintain the brilliance of every facet.
FAQ
What is the purpose of the hidden gallery diamond?
The hidden gallery diamond sits beneath the center stone where it adds sparkle from the side while keeping the top view of the solitaire clean and uncluttered.
Why does this ring use six prongs?
Six evenly spaced prongs provide balanced support around the round brilliant while maintaining an open presentation that allows light to reach the diamond.
Can this ring be worn with a wedding band?
Yes. The cathedral basket allows many straight wedding bands to sit close, while contoured bands can follow the raised profile even more precisely.
Which metal color best complements this design?
White gold and platinum maximize the brilliance of the round center, while yellow and rose gold create warm contrast around the classic solitaire.
Common questions
Ring questions, answered
Timing, shipping, certification and return eligibility for made-to-order rings.
Still deciding?
Talk to a Signora jeweler — free, and no obligation.
Book a consultation →
Answers last updated July 31, 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 express shipping free?
The configured free-shipping reference is orders over $500 USD. Eligibility, any currency equivalent, the available service and the final shipping charge are determined by the cart and Shopify checkout for your destination and order total before payment.
Will I have to pay import duties?
Duties and applicable import taxes are prepaid by Signora for deliveries to the US, UK and Canada. You should not be asked to pay them again on delivery.
What certificate comes with my jewelry?
Every finished Signora jewelry product includes a Signora Jewelry Certificate. Any independent stone report included with the selected configuration is shown in the product details and order record.
Can I return a made-to-order listed design?
Standard listed products are eligible for return within 30 days of 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 are still handled, and Signora will review any exceptional circumstances with the customer.