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Product Details
| Detail | Reference Design | Customizable |
|---|---|---|
| Center Diamond | Octagon Old European Cut Lab Grown Diamond · 7.20 × 7.20 mm · Approx. 1.50 ct (Reference) | 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct |
| Side Diamonds | 2 Trillion Cut Lab Grown Diamonds · Approx. 0.10 ct Total | Scaled proportionally with the selected center diamond |
| Total Diamond Weight | Approx. 1.60 ct (Reference) | Varies with selected center diamond |
| Stone Type | Lab Grown Diamond | — |
| Setting | Four-Prong Cathedral Basket with Octagonal Bezel Frame | — |
| Finish | High Polish with Milgrain Detail | — |
| Occasion | Engagement · Anniversary · Bridal | — |
At a glance
A vintage octagon lab grown diamond engagement ring from Signora Jewels.
The reference design features an approximately 1.50 ct octagon old European cut lab grown diamond framed by an octagonal milgrain bezel and complemented by two trillion cut lab grown diamonds totaling approximately 0.10 ct. The reference total diamond weight is approximately 1.60 ct. 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 octagon center is secured within a four-prong cathedral basket surrounded by a finely detailed octagonal bezel frame. Crisp architectural lines highlight the distinctive outline of the center stone while allowing generous light through the open gallery beneath for exceptional brilliance.
Two trillion cut lab grown diamonds transition gracefully into the engraved shoulders, adding balanced sparkle beside the center stone. Chevron-inspired hand engraving and fine milgrain borders bring vintage character to the tapered band while preserving a clean, elegant profile. Every ring is handcrafted to order by Signora Jewels.
Design Highlights
- Customizable octagon old European cut lab grown diamond from 1 ct to 4.5 ct
- Octagonal milgrain bezel frame
- Two trillion cut side diamonds
- Four-prong cathedral basket
- Hand-engraved vintage shoulders
- High polish finish
Browse our Vintage Engagement Rings, explore the Engagement Ring Guide, or compare precious metals in our Metal Guide.
Diamond Details
| Specification | Details |
|---|---|
| Reference Center Diamond | Octagon Old European Cut Lab Grown Diamond · 7.20 × 7.20 mm · Approx. 1.50 ct |
| Side Diamonds | 2 Trillion Cut Lab Grown Diamonds · Approx. 0.10 ct Total |
| Total Stones | 3 |
| Reference Total Diamond Weight | Approx. 1.60 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 are adjusted to suit the selected center diamond size.
About Lab Grown Diamonds
The octagon old European cut combines vintage-inspired faceting with bold geometric symmetry. The octagonal bezel frame enhances the architectural silhouette, while the trillion side diamonds introduce clean lines that naturally draw the eye toward the center stone.
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 engraved bezel using warm water, mild soap and a soft brush to preserve the brilliance of every lab grown diamond.
FAQ
Why does this ring use an octagonal bezel frame?
The octagonal frame emphasizes the geometric outline of the center diamond while adding extra protection around its edges.
Can I customize the center diamond?
Yes. This design is available with center diamond sizes from 1 ct through 4.5 ct while maintaining the original vintage proportions.
What do the trillion side diamonds add?
The trillion cut side diamonds provide balanced brilliance and create a smooth transition from the center stone into the engraved shoulders.
Is this design comfortable for everyday wear?
Yes. The cathedral basket, tapered shoulders and smooth interior profile are designed to provide secure support and comfortable daily wear.