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Cushion Cut Lab Grown Diamond Three-Stone Engagement Ring
1 of 13
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Hand-finished in SuratMade to order
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About This Ring
Cushion Cut · Three Stone
Center
Cushion Cut
Carat
1
CustomizableMetal
CustomizableSetting
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 | Cushion · 8.00 × 8.00 mm · approx. 2.65 ct | 1–4.5 ct |
| Side diamonds | 2 round diamonds · approx. 0.48 ct total | Scales with center |
| Band diamonds | 16 round diamonds · approx. 0.18 ct total | Design proportions adjust |
| Total diamond weight | approx. 3.31 ct · 19 stones | Varies with center size |
| Stone type | Lab Grown Diamond | — |
| Setting | Four-Prong Three-Stone with Channel-Set Split Shank | — |
| Finish · Occasion | High Polish · Engagement, Anniversary, Bridal | — |
Diamond details
| Shape | Size | Qty | Weight (approx.) |
|---|---|---|---|
| Cushion | 8.00 × 8.00 mm | 1 | 2.65 ct |
| Round | 4.00 × 4.00 mm | 2 | 0.48 ct total |
| Round | 1.43 × 1.43 mm | 16 | 0.18 ct total |
| Total | — | 19 | 3.31 ct |
At a glance
A cushion lab grown diamond three-stone engagement ring from Signora Jewels.
An 8.00 × 8.00 mm cushion center of approx. 2.65 ct sits between two 4.00 mm round diamonds totaling approx. 0.48 ct. Sixteen channel-set rounds add approx. 0.18 ct along the split shank. Approx. 3.31 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. Select your center weight and metal from the options on this page.
Signora Jewels sets the 8.00 × 8.00 mm cushion between four rounded corner prongs, leaving its curved sides open. Two 4.00 mm round diamonds sit close to the center, adding width without covering the cushion’s softened-square outline.
The shoulders divide beneath the side stones. Sixteen 1.43 mm rounds sit between raised metal rails, so their edges are shielded when the ring brushes a pocket or sleeve. From the front, the two rows lead directly into the three-stone crown.
Design highlights
- Cushion center shown at approx. 2.65 ct
- Customizable center from 1–4.5 ct
- Two 4.00 mm round side diamonds totaling approx. 0.48 ct
- 16 channel-set rounds totaling approx. 0.18 ct
- Four-Prong Three-Stone crown
- Split shank with protective raised rails
The split happens where it matters: directly beneath the side stones. That opening keeps the 19-diamond layout from reading as one heavy block of metal, while the channel rails give the smaller rounds a protected path down each shoulder. See more three-stone rings, compare center cuts in the diamond stone guide, or review the available finishes in the metal guide.
Diamond & Ring Details
| Specification | Details |
|---|---|
| Center stone | Cushion · 8.00 × 8.00 mm · approx. 2.65 ct |
| Side stones | 2 round diamonds · 4.00 × 4.00 mm · approx. 0.48 ct total |
| Band accents | 16 round diamonds · 1.43 × 1.43 mm · approx. 0.18 ct total |
| Total weight / count | approx. 3.31 ct · 19 stones |
| Setting | Four-Prong Three-Stone with Channel-Set Split Shank |
| Center options | 1, 1.5, 2, 2.5, 2.65, 3, 3.5, 4 and 4.5 ct |
| Finish | High Polish |
Measurements are approximate; your selected center weight determines the finished diamond and metal weight.
About Lab Grown Diamonds
The cushion center combines a softened-square outline with brilliant-style facets, producing larger flashes across its 8.00 mm face. The round side stones add circular points of light beside it, while the smaller channel-set rounds create a tighter sparkle along the shoulders.
Metal, Care & Fit
White gold and platinum make the prongs and channel rails recede against the diamonds. Yellow and rose gold draw a clear border around both rows of band stones. Clean beneath the center basket and between the split shoulders with warm water, mild soap and a soft brush.
FAQ
How is the cushion center protected?
Four rounded prongs grip the cushion at its corners. The placement protects the points while leaving the curved sides of the 8.00 × 8.00 mm stone visible.
What do the two round side diamonds add?
The two 4.00 mm rounds add approx. 0.48 ct across the shoulders. They widen the three-stone crown while keeping the 2.65 ct cushion clearly dominant.
Are the small band diamonds exposed?
The 16 band diamonds sit between raised channel rails. Those metal edges shield their girdles better than an open shared-prong row when the ring contacts clothing or another piece of jewelry.
Which metal works best with the channel-set shoulders?
White gold and platinum create the most continuous diamond line. Yellow and rose gold make the two channel rails more visible and emphasize the split-shank structure.
| Detail | In the photos | Customizable |
|---|---|---|
| Center diamond | Cushion · 8.00 × 8.00 mm · approx. 2.65 ct | 1–4.5 ct |
| Side diamonds | 2 round diamonds · approx. 0.48 ct total | Scales with center |
| Band diamonds | 16 round diamonds · approx. 0.18 ct total | Design proportions adjust |
| Total diamond weight | approx. 3.31 ct · 19 stones | Varies with center size |
| Stone type | Lab Grown Diamond | — |
| Setting | Four-Prong Three-Stone with Channel-Set Split Shank | — |
| Finish · Occasion | High Polish · Engagement, Anniversary, Bridal | — |
Diamond details
| Shape | Size | Qty | Weight (approx.) |
|---|---|---|---|
| Cushion | 8.00 × 8.00 mm | 1 | 2.65 ct |
| Round | 4.00 × 4.00 mm | 2 | 0.48 ct total |
| Round | 1.43 × 1.43 mm | 16 | 0.18 ct total |
| Total | — | 19 | 3.31 ct |
At a glance
A cushion lab grown diamond three-stone engagement ring from Signora Jewels.
An 8.00 × 8.00 mm cushion center of approx. 2.65 ct sits between two 4.00 mm round diamonds totaling approx. 0.48 ct. Sixteen channel-set rounds add approx. 0.18 ct along the split shank. Approx. 3.31 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. Select your center weight and metal from the options on this page.
Signora Jewels sets the 8.00 × 8.00 mm cushion between four rounded corner prongs, leaving its curved sides open. Two 4.00 mm round diamonds sit close to the center, adding width without covering the cushion’s softened-square outline.
The shoulders divide beneath the side stones. Sixteen 1.43 mm rounds sit between raised metal rails, so their edges are shielded when the ring brushes a pocket or sleeve. From the front, the two rows lead directly into the three-stone crown.
Design highlights
- Cushion center shown at approx. 2.65 ct
- Customizable center from 1–4.5 ct
- Two 4.00 mm round side diamonds totaling approx. 0.48 ct
- 16 channel-set rounds totaling approx. 0.18 ct
- Four-Prong Three-Stone crown
- Split shank with protective raised rails
The split happens where it matters: directly beneath the side stones. That opening keeps the 19-diamond layout from reading as one heavy block of metal, while the channel rails give the smaller rounds a protected path down each shoulder. See more three-stone rings, compare center cuts in the diamond stone guide, or review the available finishes in the metal guide.
Diamond & Ring Details
| Specification | Details |
|---|---|
| Center stone | Cushion · 8.00 × 8.00 mm · approx. 2.65 ct |
| Side stones | 2 round diamonds · 4.00 × 4.00 mm · approx. 0.48 ct total |
| Band accents | 16 round diamonds · 1.43 × 1.43 mm · approx. 0.18 ct total |
| Total weight / count | approx. 3.31 ct · 19 stones |
| Setting | Four-Prong Three-Stone with Channel-Set Split Shank |
| Center options | 1, 1.5, 2, 2.5, 2.65, 3, 3.5, 4 and 4.5 ct |
| Finish | High Polish |
Measurements are approximate; your selected center weight determines the finished diamond and metal weight.
About Lab Grown Diamonds
The cushion center combines a softened-square outline with brilliant-style facets, producing larger flashes across its 8.00 mm face. The round side stones add circular points of light beside it, while the smaller channel-set rounds create a tighter sparkle along the shoulders.
Metal, Care & Fit
White gold and platinum make the prongs and channel rails recede against the diamonds. Yellow and rose gold draw a clear border around both rows of band stones. Clean beneath the center basket and between the split shoulders with warm water, mild soap and a soft brush.
FAQ
How is the cushion center protected?
Four rounded prongs grip the cushion at its corners. The placement protects the points while leaving the curved sides of the 8.00 × 8.00 mm stone visible.
What do the two round side diamonds add?
The two 4.00 mm rounds add approx. 0.48 ct across the shoulders. They widen the three-stone crown while keeping the 2.65 ct cushion clearly dominant.
Are the small band diamonds exposed?
The 16 band diamonds sit between raised channel rails. Those metal edges shield their girdles better than an open shared-prong row when the ring contacts clothing or another piece of jewelry.
Which metal works best with the channel-set shoulders?
White gold and platinum create the most continuous diamond line. Yellow and rose gold make the two channel rails more visible and emphasize the split-shank structure.
| Detail | In the photos | Customizable |
|---|---|---|
| Center diamond | Cushion · 8.00 × 8.00 mm · approx. 2.65 ct | 1–4.5 ct |
| Side diamonds | 2 round diamonds · approx. 0.48 ct total | Scales with center |
| Band diamonds | 16 round diamonds · approx. 0.18 ct total | Design proportions adjust |
| Total diamond weight | approx. 3.31 ct · 19 stones | Varies with center size |
| Stone type | Lab Grown Diamond | — |
| Setting | Four-Prong Three-Stone with Channel-Set Split Shank | — |
| Finish · Occasion | High Polish · Engagement, Anniversary, Bridal | — |
Diamond details
| Shape | Size | Qty | Weight (approx.) |
|---|---|---|---|
| Cushion | 8.00 × 8.00 mm | 1 | 2.65 ct |
| Round | 4.00 × 4.00 mm | 2 | 0.48 ct total |
| Round | 1.43 × 1.43 mm | 16 | 0.18 ct total |
| Total | — | 19 | 3.31 ct |
At a glance
A cushion lab grown diamond three-stone engagement ring from Signora Jewels.
An 8.00 × 8.00 mm cushion center of approx. 2.65 ct sits between two 4.00 mm round diamonds totaling approx. 0.48 ct. Sixteen channel-set rounds add approx. 0.18 ct along the split shank. Approx. 3.31 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. Select your center weight and metal from the options on this page.
Signora Jewels sets the 8.00 × 8.00 mm cushion between four rounded corner prongs, leaving its curved sides open. Two 4.00 mm round diamonds sit close to the center, adding width without covering the cushion’s softened-square outline.
The shoulders divide beneath the side stones. Sixteen 1.43 mm rounds sit between raised metal rails, so their edges are shielded when the ring brushes a pocket or sleeve. From the front, the two rows lead directly into the three-stone crown.
Design highlights
- Cushion center shown at approx. 2.65 ct
- Customizable center from 1–4.5 ct
- Two 4.00 mm round side diamonds totaling approx. 0.48 ct
- 16 channel-set rounds totaling approx. 0.18 ct
- Four-Prong Three-Stone crown
- Split shank with protective raised rails
The split happens where it matters: directly beneath the side stones. That opening keeps the 19-diamond layout from reading as one heavy block of metal, while the channel rails give the smaller rounds a protected path down each shoulder. See more three-stone rings, compare center cuts in the diamond stone guide, or review the available finishes in the metal guide.
Diamond & Ring Details
| Specification | Details |
|---|---|
| Center stone | Cushion · 8.00 × 8.00 mm · approx. 2.65 ct |
| Side stones | 2 round diamonds · 4.00 × 4.00 mm · approx. 0.48 ct total |
| Band accents | 16 round diamonds · 1.43 × 1.43 mm · approx. 0.18 ct total |
| Total weight / count | approx. 3.31 ct · 19 stones |
| Setting | Four-Prong Three-Stone with Channel-Set Split Shank |
| Center options | 1, 1.5, 2, 2.5, 2.65, 3, 3.5, 4 and 4.5 ct |
| Finish | High Polish |
Measurements are approximate; your selected center weight determines the finished diamond and metal weight.
About Lab Grown Diamonds
The cushion center combines a softened-square outline with brilliant-style facets, producing larger flashes across its 8.00 mm face. The round side stones add circular points of light beside it, while the smaller channel-set rounds create a tighter sparkle along the shoulders.
Metal, Care & Fit
White gold and platinum make the prongs and channel rails recede against the diamonds. Yellow and rose gold draw a clear border around both rows of band stones. Clean beneath the center basket and between the split shoulders with warm water, mild soap and a soft brush.
FAQ
How is the cushion center protected?
Four rounded prongs grip the cushion at its corners. The placement protects the points while leaving the curved sides of the 8.00 × 8.00 mm stone visible.
What do the two round side diamonds add?
The two 4.00 mm rounds add approx. 0.48 ct across the shoulders. They widen the three-stone crown while keeping the 2.65 ct cushion clearly dominant.
Are the small band diamonds exposed?
The 16 band diamonds sit between raised channel rails. Those metal edges shield their girdles better than an open shared-prong row when the ring contacts clothing or another piece of jewelry.
Which metal works best with the channel-set shoulders?
White gold and platinum create the most continuous diamond line. Yellow and rose gold make the two channel rails more visible and emphasize the split-shank structure.