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Lab Grown Three Stone Rings

Find a piece you love. Make it yours with your best offer.Made just for you. Make your best offer.

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67 pieces
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Made brand new to order. Estimated arrival: 2–2½ weeks after ordering.

60-day returns Free worldwide shipping Lifetime warranty IGI report Affirm
Pay over time with Affirm

Eligible U.S. customers · USD only · Subject to approval and terms. PayPal also accepted.

Made brand new to order. Estimated arrival: 2–2½ weeks after ordering.

30% OFF
3.00 CT Marquise Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Pear Side Diamond Pavé Trilogy Design from Diamond Studio

3.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,475Was $3,536

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30% OFF
3.00 CT Oval Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Round Diamond Trilogy Wedding Design from Diamond Studio

3.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,475Was $3,536

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30% OFF
1.70 CT Oval Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Pear Side Diamond Wedding Design from Diamond Studio

1.70 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$1,930Was $2,757

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30% OFF
2.50 CT Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Classic Trilogy Design from Diamond Studio

2.50 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,250Was $3,214

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30% OFF
3.00 CT Oval Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Round Side Diamond Custom Design from Diamond Studio

3.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,475Was $3,536

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30% OFF
1.80 CT Pear Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Classic Trilogy Design from Diamond Studio

1.80 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$1,970Was $2,814

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Found something you love?

Explore monthly payments with Affirm.

Eligible U.S. customers · USD only · Subject to approval and terms.
30% OFF
1.80 CT Pear Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Classic Trilogy Design from Diamond Studio

1.80 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$1,970Was $2,814

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30% OFF
1.50 CT Oval Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Twisted Band Wedding Design from Diamond Studio

1.50 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$1,890Was $2,700

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30% OFF
2.50 CT Oval Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Trilogy Anniversary Design from Diamond Studio

2.50 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,250Was $3,214

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30% OFF
2.00 CT Radiant Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Cluster Side Stone Bridal Design from Diamond Studio

2.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,050Was $2,929

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30% OFF
3.00 CT Marquise Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Anniversary Trilogy Design from Diamond Studio

3.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,475Was $3,536

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30% OFFFree diamond studs
4.00 CT Emerald Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Pear Side Stone Bezel Trilogy Design from Diamond Studio

4.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$3,290Was $4,700

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A little guidance. A piece you’ll love.

Tell us your style, budget, and timing. Let’s find your next favorite.

Help me choose Personal guidance from the studio
30% OFF
3.00 CT Oval Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Kite Side Diamond IGI Certified Design from Diamond Studio

3.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,475Was $3,536

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30% OFF
2.50 CT Radiant Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Pear Side Stone Design from Diamond Studio

2.50 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,250Was $3,214

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30% OFF
3.00 CT Yellow Radiant Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Fancy Color Proposal Design from Diamond Studio

3.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,550Was $3,643

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30% OFF
2.00 CT Oval Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Emerald Accent Design from Diamond Studio

2.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,050Was $2,929

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30% OFF
2.00 CT Radiant Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Kite Side Stone Design from Diamond Studio

2.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,050Was $2,929

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30% OFF
2.00 CT Pear Shaped Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Tapered Baguette Design from Diamond Studio

2.50 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,250Was $3,214

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30% OFF
3.00 CT Cushion Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Classic Trilogy Wedding Design from Diamond Studio

3.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,400Was $3,429

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30% OFF
3.00 CT Oval Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Pear Side Stone Pavé Trilogy Design from Diamond Studio

3.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,550Was $3,643

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30% OFF
1.50 CT Oval Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Trilogy Statement Design from Diamond Studio

1.50 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$1,850Was $2,643

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30% OFF
1.50 CT Round Cut Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Classic Colorless Promise Design from Diamond Studio

1.50 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$1,850Was $2,643

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30% OFFFree diamond studs
4.20 CT Radiant Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Luxury Proposal Design from Diamond Studio

4.20 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$3,580Was $5,114

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30% OFF
3.00 CT Round Lab-Grown Diamond Three-Stone Engagement Ring in 14K White Gold – Pear Side Stone Solitaire Design from Diamond Studio

3.00 ct approx.D–F colorVS2–VS1 clarity

IGI or GIA certified14K & 18K gold
14K18K+$500
$2,550Was $3,643

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About Lab Grown Three Stone Rings

Explore lab grown three stone rings at Diamond Studio, with styles selected for diamond quality, setting design, and everyday wearability.

Compare stone shape, carat range, metal color, setting profile, and product details before choosing the piece that fits your budget and style.

Continue browsing related engagement rings or review our diamond education guide for buying guidance.

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