Princess Cut Lab Grown Diamond Three-Stone Engagement Ring with Pear Side Stones

IGI Report IncludedMade to OrderInsured Delivery

Princess Cut Lab Grown Diamond Three-Stone Engagement Ring with Trellis Basket in White Gold

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$862.00

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Independently graded by IGI IGI Report Included Selected 0.50 ct+ lab-grown center or primary diamond · IGI grading report · Signora Jewelry Certificate included. 1 ct lab-grown diamond · IGI report · Signora Certificate included.

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Center Diamond:

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Complimentary · hand-engraved to order · adds about 3–4 days.

Estimated dispatch: 7 business days Duties & taxes prepaid

Ring size guide

Lay a ring you own flat on the circle and slide until it sits just inside it — or set its inner diameter directly.

Measure the inside of a ring that already fits — inner edge to edge — with a ruler in mm, then set it below. No ring handy? Try Measure your finger.

14 mm 24 mm 17.3 mm

Inner diameter mm

US size

UK size

EU size

Circumference

54.3 mm

Between sizes? Always choose the larger size. Fingers are slightly bigger in the evening — measure then for the best fit.

Method 1 — Use an existing ring

Find a ring that fits the intended finger comfortably.
Place it flat and measure the inner diameter (inside edge to inside edge) in mm.
Enter that measurement in the Measure a ring tab.

Method 2 — Wrap and measure

Wrap a thin strip of paper around the base of your finger.
Mark where it overlaps — measure that length in mm (your circumference).
Divide by 3.1416 (π) to get your diameter, then use the Measure a ring tab.

Tip: Middle finger sizes typically run half a size larger than the ring finger. If between sizes, go up. Measure in the evening — fingers are slightly larger then.

7US size

US	UK	EU	Diameter	Circumference

Highlighted row = your converted size. Most common women's sizes are US 6–7. All measurements in mm.

Selected: —

The Signora Promise

Hand-finished in SuratMade to order

Reports where statedExact scope shown

Insured deliverySigned & tracked

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Standard-design returns30-day eligibility

Final inspectionChecked before dispatch

About This Ring

Princess Cut · Three Stone

Center

Princess Cut

Carat

1 ct

Customizable

Metal

Customizable

Setting

Three Stone

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	Cushion Old Mine Cut · 9.20 × 7.70 mm · Approx. 2.50 ct	1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct
Side Diamonds	2 Pear Cut Diamonds · Approx. 0.40 ct total	Scaled to suit the selected center size
Total Diamond Weight	Approx. 2.90 ct	Varies with selected center size
Stone Type	Lab Grown Diamond	—
Setting	Four-Prong Basket with Pear Side Diamonds	—
Finish · Occasion	High Polish · Engagement, Anniversary, Bridal	—

At a glance

A cushion lab grown diamond three-stone engagement ring from Signora Jewels.

The ring shown features a 9.20 × 7.70 mm cushion old mine cut lab grown diamond weighing approximately 2.50 ct. Two pear cut side diamonds total approximately 0.40 ct, bringing the total diamond weight to approximately 2.90 ct.

Made to order in 11 metals: 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 cushion old mine cut center is held securely in a four-prong basket that keeps the softly rounded corners visible while allowing light to enter through the open gallery beneath. Its broad facets produce larger flashes of light that highlight the vintage-inspired character of the cut.

Two pear cut side diamonds frame the center with their pointed tips directed inward, creating a balanced three-stone silhouette. Their tapered profile blends naturally into the plain comfort shank, keeping the focus on the center while maintaining elegant proportions. Signora Jewels crafts every ring to order in your selected precious metal and center diamond size.

Design Highlights

Customizable cushion old mine cut lab grown diamond from 1 ct to 4.5 ct
Four-prong basket setting
Two pear cut side diamonds totaling approximately 0.40 ct
Open gallery construction
Plain comfort shank
High polish finish

Browse more Three-Stone Rings, explore our Engagement Ring Guide, or compare precious metals using our Metal Guide.

Diamond & Ring Details

Specification	Details
Center Diamond	Cushion Old Mine Cut · 9.20 × 7.70 mm · Approx. 2.50 ct (shown)
Side Diamonds	2 Pear Cut Diamonds · Approx. 0.40 ct total
Total Stones	3
Total Diamond Weight	Approx. 2.90 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 cushion old mine cut combines softly rounded corners with broad, bold facets that create larger flashes of light. The pear side diamonds enhance the elongated profile of the center while preserving the balanced proportions of this classic three-stone design.

Metal, Care & Fit

Available in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum. Clean beneath the basket and around the pear side diamonds with warm water, mild soap and a soft brush to keep the setting free from residue and maintain brilliance.

FAQ

What makes an old mine cut cushion different?
The old mine cut features broader facets and softly rounded corners, creating larger flashes of light and a vintage-inspired appearance.

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 three-stone proportions.

Why are pear diamonds used as side stones?
Their tapered shape naturally frames the cushion center and guides the eye toward the main diamond without overwhelming it.

Is this ring comfortable for everyday wear?
Yes. The plain comfort shank and open basket provide a balanced fit while securely supporting the center and side diamonds.

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