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Princess Lab Grown Diamond Solitaire 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
Princess Cut · Solitaire
Center
Princess Cut
Carat
1 ct
CustomizableMetal
CustomizableSetting
Solitaire
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 | Princess Cut · 7.20 × 7.20 mm · Approx. 2.01 ct | 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct |
| Side Diamonds | 2 Marquise Cut Lab Grown Diamonds · Approx. 0.08 ct Total | Scaled proportionally |
| Total Diamond Weight | Approx. 2.09 ct | Varies with selected center size |
| Stone Type | Lab Grown Diamond | — |
| Setting | Four-Prong Cathedral Basket with Twisted Infinity Shank | — |
| Finish · Occasion | High Polish · Engagement, Anniversary, Bridal | — |
At a glance
A princess cut lab grown diamond solitaire engagement ring from Signora Jewels.
The ring shown features a 7.20 × 7.20 mm princess cut lab grown diamond weighing approximately 2.01 ct. Two marquise cut lab grown diamonds totaling approximately 0.08 ct accent the twisted infinity shank for an approximate total diamond weight of 2.09 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 princess cut center is secured in a four-prong cathedral basket that protects each corner while lifting the diamond above the shank for exceptional light performance. The open gallery beneath allows additional light to enter the stone, highlighting the crisp geometry and brilliant sparkle of the square cut.
The polished infinity shank twists gracefully toward the center and is finished with marquise cut accent diamonds that add subtle brilliance without distracting from the solitaire design. The flowing lines of the band create a modern silhouette while maintaining a comfortable everyday fit. Signora Jewels crafts every ring to order in your selected precious metal and center diamond size.
Design Highlights
- Customizable princess cut lab grown diamond from 1 ct to 4.5 ct
- Four-prong cathedral basket setting
- Twisted infinity shank design
- Two marquise cut side accent diamonds
- Open gallery construction
- High polish finish
Browse more Solitaire Engagement Rings, explore our Engagement Ring Guide, or compare precious metals using our Metal Guide.
Diamond & Ring Details
| Specification | Details |
|---|---|
| Center Diamond | Princess Cut · 7.20 × 7.20 mm · Approx. 2.01 ct (shown) |
| Side Diamonds | 2 Marquise Cut Lab Grown Diamonds · Approx. 0.08 ct Total |
| Total Stones | 3 |
| Total Diamond Weight | Approx. 2.09 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 princess cut combines crisp square proportions with exceptional brilliance. The flowing infinity shank softens the geometric center stone, while the marquise accents add refined detail that complements the modern cathedral setting.
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 marquise side accents using warm water, mild soap and a soft brush to maintain brilliance.
FAQ
Why is a cathedral basket used for a princess cut?
The cathedral shoulders support the setting while helping protect the pointed corners of the princess cut diamond.
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 maintaining the same elegant proportions.
What do the marquise side diamonds add?
They introduce subtle sparkle and graceful detail that complements the flowing infinity shank without overpowering the center diamond.
Is this ring suitable for everyday wear?
Yes. The secure four-prong cathedral setting and comfort shank are designed for lasting 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.