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Marquise Lab Grown Diamond Vintage 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
Marquise Cut · Cathedral
Center
Marquise Cut
Carat
1 ct
CustomizableMetal
CustomizableSetting
Cathedral
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 | Marquise Cut · 10.50 × 5.30 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 |
| Floral Side Diamonds | 12 Round Brilliant · Approx. 0.11 ct | Scaled proportionally |
| Marquise Accent Diamonds | 2 Marquise Cut · Approx. 0.06 ct | Scaled proportionally |
| Total Diamond Weight | Approx. 1.17 ct | Varies with selected center size |
| Stone Type | Lab Grown Diamond | — |
| Setting | Four-Prong Basket Setting with Floral Round Cluster & Marquise Side Accents | — |
| Finish · Occasion | High Polish · Engagement, Anniversary, Bridal | — |
At a glance
A marquise lab grown diamond vintage engagement ring from Signora Jewels.
The ring shown features a 10.50 × 5.30 mm marquise cut lab grown diamond weighing approximately 1.00 ct. Twelve round brilliant diamonds and two marquise accent diamonds total approximately 0.17 ct, bringing the total diamond weight to approximately 1.17 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 marquise cut center diamond is secured in a classic four-prong basket that protects both pointed tips while allowing generous light to enter through the open cathedral gallery. Its elongated silhouette creates elegant finger coverage and emphasizes the graceful proportions of the center stone.
Round brilliant diamonds form delicate floral-inspired clusters beside the center, while marquise accent diamonds continue the flowing botanical theme along the shoulders. The slender comfort shank keeps the design refined and balanced so every decorative detail naturally frames the center diamond. Signora Jewels crafts every ring to order in your selected precious metal and center diamond size.
Design Highlights
- Customizable marquise cut lab grown diamond from 1 ct to 4.5 ct
- Four-prong cathedral basket setting
- Floral round brilliant diamond clusters
- Marquise cut side accent diamonds
- Open gallery construction
- High polish finish
Browse more Vintage Engagement Rings, explore our Engagement Ring Guide, or compare precious metals using our Metal Guide.
Diamond & Ring Details
| Specification | Details |
|---|---|
| Center Diamond | Marquise Cut · 10.50 × 5.30 mm · Approx. 1.00 ct (shown) |
| Floral Side Diamonds | 12 Round Brilliant · Approx. 0.11 ct |
| Marquise Accent Diamonds | 2 Marquise Cut · Approx. 0.06 ct |
| Total Stones | 15 |
| Total Diamond Weight | Approx. 1.17 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 marquise cut combines graceful length with exceptional brilliance, while the floral-inspired round brilliant clusters soften the silhouette and highlight the center stone. Marquise accents echo the center shape, creating a harmonious vintage-inspired design.
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 floral clusters with warm water, mild soap and a soft brush to maintain brilliance.
FAQ
Why is the marquise diamond secured with four prongs?
The four-prong basket supports the center while protecting the pointed tips and allowing excellent light performance.
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 preserving the same vintage-inspired styling.
What do the floral side clusters add?
The round brilliant clusters introduce soft sparkle that complements the elongated marquise center without overpowering it.
Is this ring suitable for everyday wear?
Yes. The cathedral basket, comfort shank and secure settings are designed for comfortable daily wear while showcasing the center diamond beautifully.
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.