Round Lab Grown Diamond Trellis Three-Stone Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

Round Lab Grown Diamond Three-Stone Engagement Ring with Trellis Basket Setting in White Gold

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$1,048.00

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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

Round Brilliant · Three Stone

Center

Round Brilliant

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.

Detail	In the Photos	Customizable
Center Diamond	Round Brilliant · 6.40–6.50 mm · Approx. 1.00 ct	1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct
Side Diamonds	2 Round Brilliant · 4.80 mm each · Approx. 0.80 ct total	Scaled to suit the selected center size
Total Diamond Weight	Approx. 1.80 ct	Varies with selected center size
Stone Type	Lab Grown Diamond	—
Setting	Trellis Basket with Six-Prong Center & Four-Prong Side Stones	—
Finish · Occasion	High Polish · Engagement, Anniversary, Bridal	—

At a glance

A round lab grown diamond three-stone engagement ring from Signora Jewels.

The ring shown features a 6.40–6.50 mm round brilliant lab grown diamond weighing approximately 1.00 ct. Two round brilliant side diamonds totaling approximately 0.80 ct complete the three-stone design.

Made to order in 11 metals: Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum.

Select your preferred center diamond size and precious metal using the options on this page.

The six-prong basket holds the round brilliant center securely while leaving the pavilion open to light. A trellis gallery crosses beneath the three diamonds, creating an airy profile that supports the setting without adding unnecessary bulk. The center remains the focal point while the side diamonds provide balanced brilliance.

Two 4.80 mm round brilliant diamonds sit in matching four-prong settings, giving the ring a classic three-stone silhouette with generous finger coverage. The plain comfort shank keeps the design clean and allows the diamonds to stand out. Signora Jewels makes every ring to order in your selected precious metal and center diamond size.

Design Highlights

Customizable round brilliant lab grown diamond from 1 ct to 4.5 ct
Six-prong trellis basket center setting
Two round brilliant side diamonds totaling approximately 0.80 ct
Open trellis gallery construction
Plain comfort shank
High polish finish

Browse more Three-Stone Rings, explore our Engagement Ring Guide, or compare precious metals using our Metal Guide.

Diamond & Ring Details

Specification	Details
Center Diamond	Round Brilliant · 6.40–6.50 mm · Approx. 1.00 ct (shown)
Side Diamonds	2 Round Brilliant · 4.80 mm each · Approx. 0.80 ct total
Total Stones	3
Total Diamond Weight	Approx. 1.80 ct
Center Diamond Options	1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct and 4.5 ct
Finish	High Polish

Measurements are approximate. Final dimensions vary according to the selected center diamond size.

About Lab Grown Diamonds

The round brilliant cut delivers balanced sparkle from every angle, making it a classic choice for a three-stone engagement ring. Matching round side diamonds preserve the symmetry of the design while the open trellis basket allows light to reach each stone.

Metal, Care & Fit

Available in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum. Clean beneath the trellis gallery and around all six center prongs with warm water, mild soap and a soft brush to maintain maximum brilliance.

FAQ

Why does this design use a trellis basket?
The trellis gallery supports all three diamonds while leaving the setting open beneath them, allowing more light to reach each stone and making cleaning easier.

Can I choose a larger center diamond?
Yes. This design is available with center diamond options from 1 ct through 4.5 ct while maintaining the same three-stone proportions.

Do the side diamonds match the center?
Yes. The two round brilliant side diamonds complement the round center, creating a balanced three-stone profile with approximately 0.80 ct of additional diamond weight.

Is the plain comfort shank suitable for everyday wear?
Yes. The smooth comfort shank provides a balanced fit while keeping the attention on the three round brilliant diamonds.

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