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Heritage Round Lab Grown Diamond Three-Stone 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 · Three Stone
Center
Round Brilliant
Carat
1 ct
CustomizableMetal
CustomizableSetting
Three Stone
An independent IGI grading report is included when the selected individual lab-grown center or primary diamond is 0.50 ct or larger.
| Detail | Reference Design | Customizable |
|---|---|---|
| Center Diamond | Round Old European Cut Lab Grown Diamond · 6.40–6.50 mm · Approx. 1.00 ct (Reference) | 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct |
| Accent Diamonds | 2 Round Brilliant + 4 Marquise + 8 Round Brilliant Lab Grown Diamonds · Approx. 0.28 ct Total | Scaled proportionally with the selected center diamond |
| Total Diamond Weight | Approx. 1.28 ct (Reference) | Varies with selected center diamond |
| Stone Type | Lab Grown Diamond | — |
| Setting | Six-Prong Cathedral Basket with Nature-Inspired Leaf Cluster Three-Stone Setting | — |
| Finish | High Polish | — |
| Occasion | Engagement · Anniversary · Bridal | — |
At a glance
A round lab grown diamond engagement ring from Signora Jewels.
The reference design features an approximately 1.00 ct round old European cut lab grown diamond framed by nature-inspired side clusters containing round and marquise lab grown diamonds totaling approximately 0.28 ct. The sculpted botanical shoulders create a graceful three-stone composition with a reference total diamond weight of approximately 1.28 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 old European cut center diamond is secured within a six-prong cathedral basket that allows generous light through the open gallery while providing excellent protection and stability. The elevated setting enhances brilliance from every viewing angle.
Marquise diamonds form delicate leaf motifs while round brilliant diamonds complete the floral side clusters, creating a balanced botanical silhouette that naturally guides the eye toward the center stone. The polished shoulders maintain a refined profile while adding vintage-inspired character. Every ring is handcrafted to order by Signora Jewels.
Design Highlights
- Customizable round old European cut lab grown diamond from 1 ct to 4.5 ct
- Nature-inspired three-stone design
- Leaf-inspired marquise diamond clusters
- Round brilliant accent diamonds
- Six-prong cathedral basket
- High polish finish
Browse our Round Engagement Rings, explore the Engagement Ring Guide, or compare precious metals using our Metal Guide.
Diamond Details
| Specification | Details |
|---|---|
| Reference Center Diamond | Round Old European Cut Lab Grown Diamond · 6.40–6.50 mm · Approx. 1.00 ct |
| Side Round Diamonds | 2 Stones · Approx. 0.16 ct Total |
| Marquise Accent Diamonds | 4 Stones · Approx. 0.08 ct Total |
| Additional Round Accent Diamonds | 8 Stones · Approx. 0.04 ct Total |
| Total Stones | 15 |
| Reference Total Diamond Weight | Approx. 1.28 ct |
| Available Center Sizes | 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct and 4.5 ct |
The measurements shown represent the photographed reference model. Final proportions vary according to the selected center diamond.
About Lab Grown Diamonds
The round old European cut offers distinctive vintage-inspired faceting with exceptional brilliance. Marquise leaf diamonds and round brilliant accents create a graceful botanical composition that complements the center stone while preserving timeless elegance.
Metal, Care & Fit
Available in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum. Clean beneath the cathedral basket and around the leaf-inspired clusters with warm water, mild soap and a soft brush to maintain the brilliance of every lab grown diamond.
FAQ
What gives this ring its botanical appearance?
Marquise diamonds are arranged as sculpted leaves, while round brilliant diamonds complete the floral side clusters for a refined nature-inspired look.
Can I customize the center diamond?
Yes. This design is available with center diamond sizes from 1 ct through 4.5 ct.
Why does the ring use a six-prong setting?
The six-prong cathedral basket offers additional security while allowing light to reach the center diamond through the open gallery.
Is this ring suitable for everyday wear?
Yes. The secure six-prong setting and balanced shoulder design provide lasting comfort and durability 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.