Round Lab Grown Diamond Open Halo Engagement Ring

Signora Jewelry Certificate IncludedMade to OrderInsured Delivery

round open halo engagement ring in yellow gold

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$389.00

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Product documentation Signora Jewelry Certificate Included A Signora Jewelry Certificate lists the finished-piece and material details supplied for this design. Finished-piece and material details · Signora Jewelry 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.

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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

Round Brilliant · Halo

Center

Round Brilliant

Metal

Customizable

Setting

Halo

Detail	Specification
Ring style	Open halo engagement ring with pavé shoulders
Center diamond	Round · Approx. 2.80 mm · 0.090 ct
Halo and shoulder diamonds	33 round diamonds · Approx. 0.219 ct total
Total diamond weight	Approx. 0.309 ct across 34 diamonds
Setting	Four-prong center, open halo and U-cut pavé shoulders
Head width	Approx. 7.00 mm
Band width	Approx. 1.80 mm
Stone type	Lab Grown Diamond
Reference size	US 8
Finish	High Polish

Diamond details

Shape	Size	Qty	Weight (approx.)
Round center	2.80 mm	1	0.090 ct
Round halo and shoulder diamonds	1.20 mm	18	0.144 ct
Round halo and shoulder diamonds	1.00 mm	15	0.075 ct
Total	—	34	0.309 ct

At a glance

A round Lab Grown Diamond open halo engagement ring from Signora Jewels.

The fixed design holds a 0.090 ct round center measuring Approx. 2.80 mm inside an airy circular halo.

Thirty-three round accents total Approx. 0.219 ct, bringing the complete ring to Approx. 0.309 ct across 34 diamonds.

Made to order in silver, 9K/14K/18K yellow, white or rose gold, and platinum.

This fixed-center ring is made to order in your selected metal and ring size. Check your fit with the ring size guide.

Signora Jewels leaves a narrow ring of open space between the 2.80 mm center and its surrounding diamonds. That gap keeps the center readable instead of blending it into the halo. Four small prongs hold the round diamond above an open gallery, while the halo rises around it without closing over the crown.

The pavé line continues from the halo onto both shoulders, then stops before the plain lower shank. At Approx. 1.80 mm wide, the band sits lightly between the fingers. The 7.00 mm head gives the ring a clear circular outline without carrying the width of a larger cluster.

Compare proportions in the engagement ring guide, or request a different halo spacing through our custom jewelry service.

Design highlights

Fixed 0.090 ct round Lab Grown Diamond center
Approx. 2.80 mm center diameter
Open circular halo with visible space around the center
33 round accent diamonds totaling Approx. 0.219 ct
Approx. 0.309 ct total diamond weight
Four-prong center setting
U-cut pavé shoulders
Approx. 7.00 mm head width
Approx. 1.80 mm band width
Reference size US 8

About Lab Grown Diamonds

The round center returns a concentrated flash, while the smaller halo and shoulder diamonds create a finer ring of light around it. Lab grown diamonds have the same crystal structure, hardness and optical properties as mined diamonds.

Metal, Care & Fit

Choose silver, 9K, 14K or 18K gold in yellow, white or rose, or platinum. Clean beneath the open halo and along the pavé shoulders with warm water, mild soap and a soft brush. Rinse thoroughly and pat dry. Remove the ring before swimming, lifting weights or applying lotion.

FAQ

Is the center diamond included?
Yes. The ring includes one fixed 0.090 ct round Lab Grown Diamond measuring Approx. 2.80 mm.

What is the total diamond weight?
The total diamond weight is Approx. 0.309 ct across 34 diamonds. The center weighs 0.090 ct, and the halo and shoulder accents total Approx. 0.219 ct.

What makes this an open halo setting?
The halo sits around the center with a visible gap between the two. That open space separates the center outline from the surrounding diamonds.

How is the center diamond secured?
The center diamond is held by four prongs above an open gallery. The halo sits independently around the center basket.

How does an open halo compare with a fitted halo?
An open halo leaves visible space around the center, while a fitted halo places the surrounding diamonds closer to its edge.

What is the difference between 9K and 18K gold?
9K gold contains more strengthening alloy and resists surface wear, while 18K gold contains more pure gold and carries richer color.

Can this ring be resized?
Yes. The plain lower shank allows most gold and platinum versions to be resized by a qualified jeweler.

Can the halo spacing be changed?
Yes. Signora Jewels can alter the halo gap, shoulder length or head proportions through the custom design service.

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