Princess Cut Lab Grown Diamond Halo Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

1 of 10

$1,127.00

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.

Understand your certificates →Certificate details →

Metal:

Center Diamond:

Choose your fit

Ring size Choose one

Forever, A & J

Live preview

Engraving 0 / 20

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

Secure checkoutShopify checkout

Standard-design returns30-day eligibility

Final inspectionChecked before dispatch

About This Ring

Princess Cut · Halo

Center

Princess Cut

Carat

1 ct

Customizable

Metal

Customizable

Setting

Halo

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 · 5.5 × 5.5 mm · approx. 1.00 ct	1–4.5 ct
Accent diamonds	38 round diamonds · approx. 0.25 ct total	Scales with center
Total diamond weight	approx. 1.25 ct · 39 stones	Varies with selected center
Stone type	Lab Grown Diamond	—
Setting	Four-Prong with Double Halo	Scales with center
Band	Twisted pavé shoulders with milgrain detailing	—
Finish · Occasion	High Polish · Engagement, Anniversary, Bridal	—

Diamond details

Shape	Size	Qty	Weight (approx.)
Princess center	5.5 × 5.5 mm	1	1.00 ct
Round halo diamonds	—	24	0.17 ct total
Round band diamonds	—	14	0.08 ct total
Total	—	39	1.25 ct

At a glance

A princess lab grown diamond double halo engagement ring from Signora Jewels.

The photographed design centers a 1.00 ct princess measuring approximately 5.5 × 5.5 mm in a four-prong setting, with 38 round halo and shoulder diamonds totaling approximately 0.25 ct. Approx. 1.25 ct total.

Made to order in 11 metals: silver, 9K/14K/18K gold (yellow, white, rose) and platinum.

Each metal color is shown in the photos. Choose a 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct or 4.5 ct center and your preferred metal from the options on this page.

Signora Jewels starts with a square 5.5 × 5.5 mm princess center, then builds the frame outward. Four prongs leave the straight sides and clipped corners easy to read, while 24 small rounds form the cushion-square halo around the photographed 1.00 ct diamond.

The frame is edged in fine milgrain, and another 14 rounds continue into the twisted shoulders. Those shoulders reach approximately 3.30 mm near the setting before settling into a 2.10 mm lower shank. At the reference weight, the head stands approximately 7.00 mm high.

Design highlights

Princess center options: 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct or 4.5 ct
1.00 ct reference center measuring approximately 5.5 × 5.5 mm
24 round halo diamonds totaling approximately 0.17 ct
14 round shoulder diamonds totaling approximately 0.08 ct
Cushion-square double halo profile with milgrain edging
Twisted pavé shoulders tapering into an approximately 2.10 mm lower shank

The square center and shaped frame do different jobs. The princess keeps a crisp geometric center, while the rounded corners and pointed sections of the surrounding halo soften its outline and increase its face-up spread. The twist then carries the pavé into the band instead of ending it at the head. Browse more halo engagement rings, compare cuts in the diamond stone guide, or review the metal guide.

Diamond & Ring Details

Specification	Details
Center stone	Princess · 5.5 × 5.5 mm · approx. 1.00 ct in the photographed design
Halo diamonds	24 round diamonds · approx. 0.17 ct total
Band diamonds	14 round diamonds · approx. 0.08 ct total
Total weight / count	approx. 1.25 ct · 39 stones in the photographed design
Setting	Four-Prong with Double Halo
Band	Twisted pavé shoulders with milgrain detailing
Band details	Approx. 2.10 mm lower width · 1.80 mm lower thickness · 3.30 mm shoulder width
Setting height	Approx. 7.00 mm at the 1.00 ct reference weight
Center options	1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct
Finish	High Polish

Measurements are approximate. The selected center weight determines the final diamond dimensions, halo proportions and total diamond weight.

About Lab Grown Diamonds

The princess center concentrates its 1.00 ct reference weight into an approximately 5.5 × 5.5 mm square outline. Its straight sides contrast with the small round diamonds in the halo and shoulders, making the center shape easy to distinguish even inside a detailed frame.

Metal, Care & Fit

The reference construction uses approximately 5.87 g of 18K gold before the diamonds are set. Yellow and rose gold make the milgrain and twisted strands more visible between the rounds; white gold and platinum keep the halo closer in tone to the stones. Clean the halo and shoulder openings from both sides with warm water, mild soap and a soft brush.

FAQ

What does the double halo do around this princess center?
Twenty-four round diamonds totaling approximately 0.17 ct build the cushion-square frame around the princess. The shaped outer border increases the visible spread while keeping the 5.5 × 5.5 mm reference center clearly square.

How are the corners of the princess diamond held?
Four prongs secure the center at its corners. The photographed 1.00 ct diamond sits inside the surrounding pavé frame without additional prongs crossing its straight sides.

What do the twisted shoulders add to the design?
Fourteen round diamonds totaling approximately 0.08 ct continue the pavé into the shoulders. Diamond-set sections cross with polished and milgrain-edged metal to carry the pattern away from the halo.

How high does the 1 ct reference setting sit?
The photographed head is approximately 7.00 mm high. The selected center weight determines the final proportions as the setting scales for larger princess diamonds.

How should I clean the double halo and twisted pavé band?
Use warm water, mild soap and a soft brush from both the top and underside. Pay particular attention to the spaces behind the 38 accent diamonds and along the twisted shoulders where residue can collect.

Common questions

Ring questions, answered

Timing, shipping, certification and return eligibility for made-to-order rings.

Still deciding? Talk to a Signora jeweler — free, and no obligation. Book a consultation →

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.

Your cart is empty