4 Carat Round Lab-Grown Diamonds

Compare round lab-grown diamonds weighing 4.00–4.09 ct.

Showing up to 24 matching diamonds. Fresh listings appear first, ordered by lowest observed price. Older listings remain visible with their observation dates and require availability checks. Color, clarity and cut are unrestricted. Prices can depend on payment method; confirm terms at checkout.

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24 matching diamonds shown.

4.09 ct Round lab-grown diamond

F · SI1 · Ideal · IGI 751506176

Last checked November 3, 2026 at 05:49 UTC

• Citrai — $512 (card)
• Aurelinne — $532 (card)
• Ritani — $996 (card)

4.03 ct Round lab-grown diamond

F · SI1 · Ideal · IGI 764669689

Last checked November 3, 2026 at 05:49 UTC

• Citrai — $519 (card)

4.03 ct Round lab-grown diamond

F · SI1 · Ideal · IGI 763664128

Last checked November 3, 2026 at 05:49 UTC

• Citrai — $519 (card)

4.06 ct Round lab-grown diamond

F · SI1 · Ideal · IGI 799613521

Last checked November 3, 2026 at 05:49 UTC

• Citrai — $522 (card)
• Aurelinne — $543 (card)
• Ritani — $894 (card)
• Dreamstone — $913 (card)
• Brilliantearth — $3,590 (card)

4.00 ct Round lab-grown diamond

G · VS1 · Ideal · IGI 843619832

Last checked November 3, 2026 at 05:49 UTC

• Citrai — $530 (card)
• Brilliantearth — $3,650 (card)

4.05 ct Round lab-grown diamond

E · SI1 · Ideal · IGI 652404468

Last checked November 3, 2026 at 05:49 UTC

• Citrai — $531 (card)
• Aurelinne — $553 (card)
• Dreamstone — $865 (card)

4.02 ct Round lab-grown diamond

F · SI1 · Excellent · IGI 817696785

Last checked November 3, 2026 at 05:49 UTC

• Citrai — $531 (card)

4.02 ct Round lab-grown diamond

G · VS1 · Ideal · IGI 821683195

Last checked November 3, 2026 at 05:49 UTC

• Citrai — $532 (card)

4.00 ct Round lab-grown diamond

G · SI2 · Ideal · IGI 819602247

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $553 (card)
• Dreamstone — $866 (card)
• Ritani — $893 (card)
• Friendlydiamonds — $1,304 (card)
• Brilliantearth — $2,320 (card)

4.00 ct Round lab-grown diamond

F · SI1 · Ideal · IGI 840612328

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $553 (card)
• Dreamstone — $866 (card)
• Ritani — $893 (card)
• Friendlydiamonds — $1,304 (card)
• Rarecarat — $1,840 (card)
• Brilliantearth — $2,770 (card)

4.03 ct Round lab-grown diamond

E · SI1 · Ideal · IGI 839683256

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $553 (card)
• Loosegrowndiamond — $755 (card)
• Friendlydiamonds — $1,282 (card)

4.03 ct Round lab-grown diamond

G · SI1 · Ideal · IGI 729548254

Last checked November 3, 2026 at 05:49 UTC

• Aurelinne — $555 (card)
• Loosegrowndiamond — $755 (card)

4.07 ct Round lab-grown diamond

E · SI1 · Ideal · IGI 697517134

Last checked November 3, 2026 at 05:49 UTC

• Aurelinne — $555 (card)
• Dreamstone — $870 (card)

4.00 ct Round lab-grown diamond

G · VS2 · Excellent · IGI 839630186

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $562 (card)
• Loosegrowndiamond — $780 (card)

4.01 ct Round lab-grown diamond

G · VS2 · Ideal · IGI 835649859

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $567 (card)
• Loosegrowndiamond — $772 (card)
• Friendlydiamonds — $1,312 (card)
• Brilliantearth — $3,240 (card)

4.08 ct Round lab-grown diamond

H · VS1 · Ideal · IGI 628481370

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $567 (card)
• Loosegrowndiamond — $779 (card)
• Ritani — $951 (card)

4.01 ct Round lab-grown diamond

H · VS1 · Ideal · IGI 617402183

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $567 (card)
• Loosegrowndiamond — $781 (card)
• Ritani — $954 (card)

4.01 ct Round lab-grown diamond

H · VS1 · Ideal · IGI 623475799

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $567 (card)
• Loosegrowndiamond — $781 (card)
• Ritani — $954 (card)

4.01 ct Round lab-grown diamond

H · VS1 · Ideal · IGI 636448462

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $567 (card)
• Loosegrowndiamond — $781 (card)
• Ritani — $954 (card)

4.00 ct Round lab-grown diamond

H · VS1 · Excellent · IGI 842618704

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $567 (card)
• Loosegrowndiamond — $770 (card)
• Friendlydiamonds — $1,309 (card)

4.03 ct Round lab-grown diamond

H · VS1 · Ideal · IGI 618470686

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $571 (card)
• Ritani — $958 (card)

4.04 ct Round lab-grown diamond

H · VS1 · Ideal · IGI 616420682

Last checked November 3, 2026 at 05:49 UTC

• Luvansh — $571 (card)
• Ritani — $961 (card)

4.02 ct Round lab-grown diamond

F · SI2 · Ideal · IGI 607302863

Last checked November 3, 2026 at 05:49 UTC

• Citrai — $581 (card)
• Frankdarling — $1,497 (card)
• Brilliantearth — $2,340 (card)

4.06 ct Round lab-grown diamond

G · VVS2 · Ideal · IGI 835640598

Last checked November 3, 2026 at 05:49 UTC

• Citrai — $592 (card)
• Aurelinne — $615 (card)
• Doamore — $4,510 (card)