Round Lab Grown Diamond Marquise Five-Stone Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

round diamond marquise five-stone ring in yellow gold

1 of 12

$711.00

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

Round Brilliant ·

Center

Round Brilliant

Carat

1 ct

Customizable

Metal

Customizable

Setting

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
Ring style	Marquise five-stone engagement ring	Included as shown
Center diamond	Round · 9.40 mm · approx. 3.00 ct	Yes — 1 to 4.5 ct
Marquise side stones	2 diamonds · 6.00 × 3.00 mm · approx. 0.660 ct	Included and scaled to the center
Round side stones	2 diamonds · 3.00 mm · approx. 0.220 ct	Included and scaled to the center
Total diamond weight	Approx. 3.880 ct · 5 diamonds	Varies with center size
Stone type	Lab Grown Diamond	Lab Grown Diamond
Setting	Four-prong center with individually prong-set marquise and round side stones	Scaled to suit the selected center
Metal & color	Rose gold shown	Yes — 11 options
Finish	High Polish	Included
Occasion	Engagement, Anniversary	—

Diamond details

Shape	Size	Qty	Weight (approx.)
Round center	9.40 mm	1	3.000 ct
Marquise side stones	6.00 × 3.00 mm	2	0.660 ct
Round side stones	3.00 mm	2	0.220 ct
Total	—	5	3.880 ct

At a glance

A round Lab Grown Diamond marquise five-stone engagement ring from Signora Jewels.

As shown: a 3.00 ct, 9.40 mm round center in a four-prong setting, with two marquise and two round side stones totaling approx. 0.880 ct;

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

Made to order — the price updates with your selection. Want different side-stone proportions or another center size? Customize your jewelry here.

Signora Jewels sets the 9.40 mm round center between two marquise diamonds, then adds a 3.00 mm round at the outer edge of each shoulder. Five stones, but no crowded line.

The marquise diamonds sit lengthwise beside the center, carrying its width into the band without wrapping it in a halo. The smaller rounds soften the step into the plain lower shank. Four prongs leave most of the center’s circular outline exposed.

From above, the side stones spread light across the finger. From the side, the raised basket leaves space beneath the center and gives a wedding band room to sit close.

Design highlights

Round Lab Grown Diamond center, approx. 3.00 ct as shown
Approx. 9.40 mm center diameter
Four-prong center basket
Two marquise side stones totaling approx. 0.660 ct
Two round side stones totaling approx. 0.220 ct
Graduated five-stone layout across the finger
Approx. 3.880 ct total diamond weight as shown
Made to order in 11 metal and color combinations

The marquise stones do the visual work. Their pointed outlines bridge the broad round center and the smaller outer diamonds without turning the shoulders into a continuous row.

Diamond & Ring Details

Specification	Details
Center stone	Round · 9.40 mm · approx. 3.00 ct as shown
Marquise side stones	2 diamonds · 6.00 × 3.00 mm · approx. 0.660 ct
Round side stones	2 diamonds · 3.00 mm · approx. 0.220 ct
Total diamond weight	Approx. 3.880 ct across 5 diamonds as shown
Center setting	Four-prong basket
Accent setting	Individual prong settings
Reference size	US 7
Finish	High Polish

Measurements and weights are approximate. The basket and metal weight scale with the center size selected.

About Lab Grown Diamonds

A round brilliant uses 57–58 facets to return light toward the eye. The marquise side stones stretch similar brilliant-style sparkle into pointed outlines, while the smaller rounds finish the graduation toward the band.

Lab grown diamonds have the same carbon crystal structure, hardness and optical properties as mined diamonds. They are graded on the same cut, color, clarity and carat standards.

Metal, Care & Fit

Choose silver, 9K/14K/18K gold in yellow, white or rose, or platinum. 9K contains more strengthening alloy for daily wear, while 18K has higher gold content and richer color. Compare your options in the metal guide.

Order in your known US size. The five-stone spread covers more of the finger than a solitaire, so accurate sizing helps keep the center upright; use the ring size and fit guide. Clean beneath each stone with warm water, mild soap and a soft brush.

FAQ

Can I choose another center diamond size?
Yes. The round center is available from 1 to 4.5 ct, and the basket and metal weight scale to the selected carat. The photographed configuration uses an approx. 3.00 ct center measuring 9.40 mm.

What is the total diamond weight?
The photographed configuration totals approx. 3.880 ct across five diamonds. That includes a 3.00 ct center, 0.660 ct of marquise side stones and 0.220 ct of round side stones.

How are the side stones arranged?
One marquise and one round diamond sit on each side of the center. The marquise stones sit nearest the center, while the smaller rounds complete the step into the plain band.

How is the center diamond held?
The round center is secured in a four-prong basket. The setting leaves most of the circular edge visible and keeps the pavilion open beneath the stone.

Will a wedding band sit beside this ring?
A straight wedding band sits close beneath the raised center basket. A small gap can remain beside the side-stone settings, while a gently contoured band follows the ring most closely.

What is the difference between 9K and 18K gold?
9K gold has more strengthening alloy and a harder surface, while 18K contains more gold and has richer color. Both are solid gold choices for daily engagement-ring wear.

How long does a made-to-order ring take?
The ring is made after the metal, center size and ring size are confirmed. The current production estimate is shown at checkout or provided with the order confirmation.

Your cart is empty