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Cushion|Lab Grown|IGI

3.51ct G VS1 Cushion Lab Grown Diamond

VG • G/VS1 • IGI LG526268263

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG526268263

Diamond specifications and retailer prices

From $725 USD
As of October 31, 2026
Save $2,565 USD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,290 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG526268263 or 526268263. Listed at 15 retailers as of October 31, 2026, with prices from $725 to $3,290, a $2,565 spread on the same certified stone. Brilliant Earth lists it at $3,290. 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
G
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526268263
Dimensions8.64 × 8.23 × 5.53 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.64 mm8.23 mm3.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526268263
Side View
Table 63.5%Crown 35.9°Girdle: THK-ETKPavilion 34.1°Culet: NoneDepth 67.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $3,290 USD|Low: $685 USD|High: $5,490 USD|Avg: $1,856 USD|-40.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 4$725 USD
Retailer 11$752 USD
Retailer 7$925 USD
Retailer 3$1,075 USD
Retailer 2$1,191 USD
Retailer 12$1,226 USD
Retailer 13$1,270 USD
Retailer 8$1,697 USD
Retailer 10$1,745 USD
Retailer 14$2,332 USD
Retailer 6$2,593 USD
Retailer 5$2,623 USD
Retailer 9$3,183 USD
Brilliant Earth$3,290 USD

43 data points across 14 retailers

15 retailers$725 USD to $3,290 USD

A
Cheapest Retailer
-
$725 USD
Final sale: no returns
Retailer 2
-
$752 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
$925 USD
View
A
Retailer 4
-
$1,075 USD
View
A
Retailer 5
-
$1,191 USD
£938 GBP
View
B+
Retailer 6
-
$1,226 USD
View
B+
Retailer 7
-
$1,270 USD
View
B+
Retailer 8
-
$1,697 USD
A$2,611 AUD
View
B+
Retailer 9
-
$1,745 USD
ZAR 28,189 ZAR
View
B
Retailer 10
-
$2,332 USD
£1,836 GBP
View
B
Retailer 11
-
$2,593 USD
View
B
Retailer 12
-
$2,623 USD
View
B
Retailer 13
-
$2,790 USD
HK$21,800 HKD
View
B
Retailer 14
-
$3,183 USD
£2,506 GBP
View
Most Expensive
B
Brilliant Earth
17972265A · Oct 31
$3,290 USD
View
14 more retailers have this diamond
Prices start from $725 USDSave up to $2,565 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
$725 USD