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Product Details
| Detail | Reference Design | Customizable |
|---|---|---|
| Center Diamond | Marquise Cut Lab Grown Diamond · 10.50 × 5.30 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 | None | — |
| Total Diamond Weight | Approx. 1.00 ct (Reference) | Varies with selected center diamond |
| Stone Type | Lab Grown Diamond | — |
| Setting | Six-Prong Cathedral Basket with Knife Edge Shank | — |
| Finish | High Polish | — |
At a glance
A marquise lab grown diamond solitaire engagement ring from Signora Jewels.
The reference design showcases an approximately 1.00 ct marquise cut lab grown diamond secured in a refined six-prong cathedral basket. A slim knife edge shank and open gallery keep the attention on the elongated center stone while creating an elegant everyday silhouette. IGI certified.
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 six-prong basket protects each pointed tip while supporting the marquise diamond with balanced symmetry. The elevated cathedral profile allows light to enter beneath the stone, enhancing brilliance and emphasizing the graceful proportions of the elongated cut.
A polished knife edge shank narrows toward the center to create a refined transition into the basket. Free from additional accent stones, every line of the design is focused on highlighting the marquise diamond with timeless simplicity. Every ring is individually handcrafted by Signora Jewels.
Design Highlights
- Customizable marquise lab grown diamond from 1 ct to 4.5 ct
- Six-prong cathedral basket
- Knife edge comfort shank
- Open gallery construction
- Minimalist solitaire profile
- High polish finish
Browse our Marquise Engagement Rings, explore the Engagement Ring Guide, or compare precious metals using our Metal Guide.
Diamond Details
| Specification | Details |
|---|---|
| Reference Center Diamond | Marquise Cut Lab Grown Diamond · 10.50 × 5.30 mm · Approx. 1.00 ct |
| Accent Diamonds | None |
| Total Stones | 1 |
| Reference Total Diamond Weight | Approx. 1.00 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 |
| Finish | High Polish |
The measurements shown represent the photographed reference model. Final proportions vary according to the selected center diamond.
About Lab Grown Diamonds
The marquise cut offers exceptional finger coverage with elegant pointed ends and brilliant faceting. Combined with the cathedral basket and knife edge band, this solitaire delivers a clean, refined appearance that remains timeless.
Metal, Care & Fit
Clean beneath the cathedral basket using warm water, mild soap and a soft brush to maintain brilliance. The polished knife edge profile is comfortable for everyday wear and pairs beautifully with a wide variety of wedding bands.
FAQ
Why does this ring use six prongs?
Six prongs provide added protection for the pointed ends of the marquise diamond while maintaining excellent light performance.
Can I customize the center diamond size?
Yes. This design is available with center diamond sizes from 1 ct to 4.5 ct.
What is a knife edge shank?
A knife edge shank features a raised center ridge that gives the ring a refined profile while keeping the band visually slim.
Will a wedding band sit beside this ring?
The cathedral profile pairs well with many straight or gently contoured wedding bands, depending on your preferred fit.