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Trusted by 100,000+ customers across USA
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10.850 × 8.300 mm
4.02 Carat Cushion Lab Grown Diamond
Excellent CutE ColorVS1 ClarityIGI
Trusted by 100,000+ customers across USA
We've got you covered
- Certified diamonds & gemstones
- Complimentary insured shipping
- 30-day returns
- Lifetime warranty
Beyond compare
 |
 Brilliant Earth |
|
|---|---|---|
| Price | $1,639.99 | $4,770 |
| Savings | Yes | 65% |
| IGI certified | Yes | Yes |
| Free returns | 30 days | 30 days |
| Lifetime warranty | Yes | Yes |
Brilliant Earth price for their lowest-priced matching lab-grown diamond (4 ct Cushion, Ideal cut, E, VS1, IGI) on brilliantearth.com, checked Sep 28, 2026.
Diamond Details
- Shape
- Cushion
- Carat
- 4.02
- Color
- E
- Clarity
- VS1
- Cut
- Excellent
- Polish
- Excellent
- Symmetry
- Excellent
- Fluorescence
- None
- Measurements
- 10.850 × 8.300 × 5.550 mm
- Length to width
- 1.31
- Table
- 60%
- Depth
- 66.9%
Shipping and returns
Complimentary insured shipping.
Return or exchange any eligible item within 30 days of it being available for shipment. We provide a prepaid shipping label at no cost, and your return is fully insured during transit.
4.02 Carat Cushion Lab Grown Diamond
$1,639.99
4.02 Carat Cushion Lab Grown Diamond
$1,639.99
Love the cushion? See it in a ring
Cushion engagement rings in different styles.
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Bridge
2.5CTW Elongated Cushion Shaped Lab Grown Diamond (F/VS) Accented Bridge Shank Engagement Ring in 14K Gold
$3,165.00
-
Pave
1.75CTW Elongated Cushion Shaped Lab Grown Diamond (F/VS) Three Row Micro Pave Engagement Ring in 14K Gold
From $2,370.00
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Solitaire
1CTW Elongated Cushion Shaped Lab Grown Diamond (F/VS) Twisted Shank Solitaire Engagement Ring in 14K Gold
$2,475.00
-
Cathedral
2CTW Elongated Cushion Shaped Lab Grown Diamond (F/VS) Classic Cathedral Shank Engagement Ring in 14K Gold
$2,715.00
Included with your diamond
What's included
See what's in the box5 items
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Your diamond4.02 ct Cushion · E · VS1
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IGI grading reportReport 805697078View the grading report (opens in a new tab)
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Complimentary insured shipping
-
30-day returnsPrepaid, insured return label
Return or exchange any eligible item within 30 days of it being available for shipment. We provide a prepaid shipping label at no cost, and your return is fully insured during transit.
-
Lifetime warranty
Verified Reviews
Loved by our customers
It's absolutely stunning! I never imagined I could own such a beautiful ring at this price. I get compliments every time I wear it.
Anna. M
We've been married for 36 years, and these one-carat diamond stud earrings were the perfect way to celebrate. They're elegant, beautifully crafted, and sparkle brilliantly. I couldn't be happier with this special gift.
Jaffery
This is my first lab-grown diamond ring, and I was unsure where to purchase it. However, Luxe Brilliance proved to be the perfect place to buy my dream ring.
Francis Brenet
OMG, this gem is truly a gem of a find! I chose the marquise cut, and it's absolutely brilliant—everything I hoped it would be. The sparkle and quality exceeded my expectations. Now it's time to have it set!
Daniel P.
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