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Cushion|Lab Grown|IGI

3.51ct E VVS1 Cushion Lab Grown Diamond

VG • E/VVS1 • IGI LG657420515

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG657420515

Diamond specifications and retailer prices

From $1,022 USD
As of October 31, 2026
Save $5,228 USD (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,250 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG657420515 or 657420515. Listed at 22 retailers as of October 31, 2026, with prices from $1,022 to $6,250, a $5,228 spread on the same certified stone. Brilliant Earth lists it at $6,250. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.51
Carat
E
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657420515
Dimensions10.66 × 7.12 × 5.01 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.66 mm7.12 mm3.51 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657420515
Side View
Table 69.0%Crown 45°Girdle: MED-THKPavilion 35.5°Culet: NoneDepth 70.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $6,250 USD|Low: $1,022 USD|High: $9,000 USD|Avg: $2,765 USD|-30.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
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Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
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Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 5$1,022 USD
Retailer 4$1,059 USD
Retailer 20$1,229 USD
Retailer 3$1,275 USD
Retailer 7$1,349 USD
Retailer 18$1,515 USD
Retailer 2$1,630 USD
Retailer 13$1,684 USD
Retailer 16$2,093 USD
Retailer 11$2,418 USD
Retailer 17$2,458 USD
Retailer 9$2,579 USD
Retailer 14$2,926 USD
Retailer 19$3,143 USD
Retailer 6$3,468 USD
Retailer 8$3,553 USD
Retailer 21$3,609 USD
Retailer 10$3,680 USD
Retailer 12$3,814 USD
Retailer 15$4,190 USD
Brilliant Earth$6,250 USD

33 data points across 21 retailers

22 retailers$1,022 USD to $6,250 USD

A
Cheapest Retailer
-
$1,022 USD
Final sale: no returns
Retailer 2
-
$1,059 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
$1,229 USD
HK$9,600 HKD
View
A
Retailer 4
-
$1,275 USD
View
A
Retailer 5
-
$1,349 USD
View
A
Retailer 6
-
$1,515 USD
View
A
Retailer 7
-
$1,630 USD
£1,284 GBP
View
A
Retailer 8
-
$1,684 USD
€1,604 EUR
View
B+
Retailer 9
-
$2,093 USD
View
B+
Retailer 10
-
$2,418 USD
View
B+
Retailer 11
-
$2,458 USD
ZAR 39,715 ZAR
View
B+
Retailer 12
-
$2,579 USD
View
B+
Retailer 13
-
$2,926 USD
£2,304 GBP
View
B+
Retailer 14
-
$3,143 USD
View
B+
Retailer 15
-
$3,312 USD
View
B
Retailer 16
-
$3,468 USD
View
B
Retailer 17
-
$3,553 USD
SGD 4,802 SGD
View
B+
Retailer 18
-
$3,609 USD
£2,842 GBP
View
B
Retailer 19
-
$3,680 USD
View
B
Retailer 20
-
$3,809 USD
View
B
Retailer 21
-
$4,190 USD
A$6,446 AUD
View
Most Expensive
B
Brilliant Earth
11858242A · Oct 31
$6,250 USD
View
21 more retailers have this diamond
Prices start from $1,022 USDSave up to $5,228 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.51ct Cushion
$1,022 USD