Heart Cut Lab Grown Diamond Halo Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

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$1,146.00

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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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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

Heart Cut · Halo

Center

Heart 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	Heart · 6.6 × 6.5 mm · approx. 1.00 ct	1–4.5 ct
Accent diamonds	40 round diamonds · approx. 0.27 ct total	Scales with center
Total diamond weight	approx. 1.27 ct · 41 stones	Varies with selected center
Stone type	Lab Grown Diamond	—
Setting	Prong-set center 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.)
Heart center	6.6 × 6.5 mm	1	1.00 ct
Round halo diamonds	—	28	0.20 ct total
Round band diamonds	—	12	0.07 ct total
Total	—	41	1.27 ct

At a glance

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

The photographed design centers a 1.00 ct heart measuring approximately 6.6 × 6.5 mm, with 28 round halo diamonds and 12 round shoulder diamonds totaling approximately 0.27 ct. Approx. 1.27 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 follows the 6.6 × 6.5 mm heart center with a frame shaped around its cleft, rounded lobes and pointed base. The photographed 1.00 ct diamond sits in a prong setting while 28 small rounds build the surrounding pavé heart, so the center outline remains readable instead of disappearing into a circular halo.

Fine milgrain traces the outer frame. Another 12 rounds continue into twisted shoulders measuring approximately 3.40 mm near the setting before the shank narrows to about 2.10 mm at the bottom. The reference head stands approximately 7.20 mm high.

Design highlights

Heart 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 6.6 × 6.5 mm
28 round halo diamonds totaling approximately 0.20 ct
12 round shoulder diamonds totaling approximately 0.07 ct
Heart-shaped double pavé frame edged with fine milgrain
Twisted pavé shoulders tapering into an approximately 2.10 mm lower shank

The frame repeats the center shape instead of merely surrounding it. Its upper contour follows the heart's cleft and lobes, then narrows to a point beneath the diamond; the small rounds fill that outline with approximately 0.20 ct of halo weight. Browse more halo engagement rings, compare center shapes in the diamond stone guide, or review the metal guide.

Diamond & Ring Details

Specification	Details
Center stone	Heart · 6.6 × 6.5 mm · approx. 1.00 ct in the photographed design
Halo diamonds	28 round diamonds · approx. 0.20 ct total
Band diamonds	12 round diamonds · approx. 0.07 ct total
Total weight / count	approx. 1.27 ct · 41 stones in the photographed design
Setting	Prong-set center with Double Halo
Band	Twisted pavé shoulders with milgrain detailing
Band details	Approx. 2.10 mm lower width · 1.80 mm lower thickness · 3.40 mm shoulder width
Setting height	Approx. 7.20 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 heart cut depends on three parts staying visually distinct: the center cleft, two rounded lobes and the point below. At the photographed 1.00 ct weight, the diamond measures approximately 6.6 × 6.5 mm. Small round accents follow that outline while keeping a clear break between the center and its pavé frame.

Metal, Care & Fit

The reference construction uses approximately 5.98 g of 18K gold before the diamonds are set. Yellow and rose gold put stronger contrast around the heart-shaped frame and milgrain edges; white gold and platinum keep the halo closer in tone to the diamonds. Clean from both sides with warm water, mild soap and a soft brush, especially around the heart cleft, halo and twisted shoulders.

FAQ

Does the halo keep the heart shape visible?
The pavé frame follows the heart's cleft, lobes and pointed base rather than forming a round border. That keeps the 6.6 × 6.5 mm reference center visibly heart-shaped while extending its outline with 28 smaller diamonds.

What do the 40 accent diamonds do in this design?
Twenty-eight rounds totaling approximately 0.20 ct build the heart halo, while 12 rounds totaling approximately 0.07 ct continue into the twisted shoulders. Together they add approximately 0.27 ct around the center.

How high does the 1 ct reference ring sit?
The photographed setting is approximately 7.20 mm high. The head scales with the selected center as the ring moves through the available 1–4.5 ct options.

Will a straight wedding band sit flush with this heart halo?
The pointed lower edge of the heart-shaped frame extends beyond the approximately 2.10 mm lower shank. A straight band can leave a gap near the center, while a contoured band can follow the halo more closely.

How should I clean the heart halo and twisted shoulders?
Use warm water, mild soap and a soft brush from both sides of the ring. Pay extra attention to the heart cleft, milgrain border and spaces behind the 40 small accent diamonds.

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.

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