Princess Cut Lab Grown Diamond Three Stone Engagement Ring (2.64 ct)

IGI Report IncludedMade to OrderInsured Delivery

Gold ring with a central square-cut diamond and two smaller diamonds on a white background

1 of 11

$936.00

Price updates with your selections

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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Forever, A & J

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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.

Each metal color is shown in the photos — pick your center size and metal in the options on this page.

Detail	In the photos	Customizable
Center diamond	Princess · 2.64 ct	Yes — 1 to 4.5 ct
Metal & color	Every color shown	Yes — 11 options
Side stones	18 diamonds · approx. 0.66 ct	Included as shown
Total diamond weight	approx. 3.30 ct	Varies with center size
Stone type	Lab Grown Diamond	Lab grown or natural

Made to order — the price updates with your selection. Want fully bespoke?
Customize your jewelry here.

This princess cut lab grown diamond engagement ring balances bold geometry with soft brilliance. At the center, a 2.64 ct princess diamond creates a clean square silhouette, framed by two round side stones that add light and presence without taking attention away from the center.

The pavé-set shoulders bring extra sparkle along the band, creating a seamless flow of brilliance from every angle. Fine claw prongs and an elevated gallery keep the profile elegant while allowing light to reach each diamond.

Made to order in your choice of center size and precious metal, this three stone design offers the look of a substantial diamond ring with the flexibility to make it uniquely yours.

Design highlights

Princess cut center lab grown diamond
Classic three stone engagement ring design
Two round brilliant side diamonds
Pavé-set diamonds along the shoulders
Four-prong center setting for a clean square profile
Elevated gallery allows light to enter the stones
Available with center sizes from 1–4.5 ct
Eleven metal and color options available

The crisp edges of the princess center contrast beautifully with the softer round side stones, creating a ring that feels both modern and timeless. The pavé accents add a continuous ribbon of sparkle across the hand.

Diamond Details

Specification	Details
Center Stone Shape	Princess Cut
Center Stone Size	7.50 × 7.50 mm
Center Stone Weight (as shown)	Approx. 2.64 CT
Side Stones	18 round diamonds · approx. 0.66 CT total
Total Diamond Weight	Approx. 3.30 CT
Total Diamond Count	19
Stone Type	Lab Grown Diamond
Setting	Four-Prong Three Stone with Pavé Band

Measurements are approximate; your chosen size sets the final center weight.

Ring Specifications

Feature	Details
Ring Style	Three Stone Pavé
Metal Options	Silver, 9K, 14K, 18K Gold, Platinum
Available Colors	Yellow, White, Rose Gold, Silver, Platinum
Setting Type	Four-Prong Three Stone & Pavé
Finish	High Polish
Occasion	Engagement, Anniversary, Bridal

About Lab Grown Diamonds

A princess is a square brilliant with crisp corners and sharp, high-contrast sparkle. It offers a contemporary edge and strong value per carat, and looks especially clean in channel or pavé bands that frame its straight lines.

Every Signora Jewels diamond is grown in a controlled lab using the CVD process, producing a stone that is chemically, optically, and physically identical to a mined diamond — same hardness, same fire, graded on the same 4C scale. Because the supply chain is short and traceable, you get a larger, cleaner stone for the same budget and a documented origin, with no mining footprint. The result is a diamond that looks and tests exactly as a natural one, with more carat and clarity for your money.

FAQ

Can I change the center stone size?
Yes. Center sizes from 1 CT to 4.5 CT are available, and the setting is scaled to suit the stone you choose.

Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds are chemically, physically, and optically identical to mined diamonds and are graded using the same 4C standards.

What is included in the total diamond weight?
The total weight includes the princess center diamond and all round side and pavé accent diamonds shown in the design.

Which metals can I choose?
Silver, 9K / 14K / 18K gold in yellow, white or rose, and Platinum.

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