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Product Details
| Detail | Reference Design | Customizable |
|---|---|---|
| Center Diamond | Marquise Old Mine Cut Lab Grown Diamond · 13.50 × 7.20 mm · Approx. 3.00 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. 3.00 ct (Reference) | Varies with selected center diamond |
| Stone Type | Lab Grown Diamond | — |
| Setting | Four-Prong Cathedral Basket Solitaire with Wide Comfort Shank | — |
| Finish | High Polish | — |
| Occasion | Engagement · Anniversary · Bridal | — |
At a glance
A marquise lab grown diamond solitaire engagement ring from Signora Jewels.
The reference design showcases an approximately 3.00 ct Marquise Old Mine Cut lab grown diamond secured within a classic four-prong cathedral basket. A wide comfort shank balances the elongated center stone while creating a bold, contemporary 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 Marquise Old Mine Cut center is elevated within a cathedral basket that allows generous light to pass through the open gallery while protecting each pointed tip. The elongated proportions create exceptional finger coverage and an elegant profile from every angle.
A wide comfort shank provides visual balance for the substantial center diamond while offering a confident, comfortable fit. Free from accent stones, every element of the design is dedicated to showcasing the distinctive beauty of the marquise center. Every ring is handcrafted to order by Signora Jewels.
Design Highlights
- Customizable Marquise Old Mine Cut Lab Grown Diamond from 1 ct to 4.5 ct
- Four-prong cathedral basket
- Wide comfort shank
- Open gallery construction
- Classic solitaire design
- High polish finish
Browse our Marquise Engagement Rings, explore the Engagement Ring Guide, or compare precious metals in our Metal Guide.
Diamond Details
| Specification | Details |
|---|---|
| Reference Center Diamond | Marquise Old Mine Cut Lab Grown Diamond · 13.50 × 7.20 mm · Approx. 3.00 ct |
| Accent Diamonds | None |
| Total Stones | 1 |
| Reference Total Diamond Weight | Approx. 3.00 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 Old Mine Cut combines elongated elegance with distinctive faceting that emphasizes both brilliance and character. The clean solitaire setting allows the center diamond to remain the unmistakable focal point while the wide comfort shank provides modern balance.
Metal, Care & Fit
Available in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum. Clean beneath the cathedral basket with warm water, mild soap and a soft brush to maintain brilliance and preserve the polished finish.
FAQ
Why does this ring use a wide comfort shank?
The broader shank balances the larger marquise center while providing a comfortable fit and a substantial feel.
Can I choose a different center diamond size?
Yes. This design is available with center diamond sizes from 1 ct through 4.5 ct.
How does the cathedral basket benefit the center diamond?
The cathedral basket securely supports the marquise diamond while allowing light to enter through the open gallery for enhanced brilliance.
Is this solitaire suitable for everyday wear?
Yes. The four-prong cathedral basket and wide comfort shank are designed to provide lasting security and comfortable daily wear.