Cushion|Lab Grown|IGI

3.51ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG591300255

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG591300255

Diamond specifications and retailer prices

From $1,848 USD
As of October 30, 2026
9 retailers carry this diamond
Most expensive: $5,080 USD at Brilliant Earth · As of October 6, 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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG591300255 or 591300255. Listed at 9 retailers as of October 30, 2026. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.51
Carat
G
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591300255
Dimensions9.21 × 8.72 × 5.71 mm
L/W Ratio1.06
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
9.21 mm8.72 mm3.51 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591300255
Side View
Table 66.0%Crown 32.2°Girdle: MediumPavilion 39.9°Culet: NoneDepth 65.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $5,080 USD|Low: $360 USD|High: $5,240 USD|Avg: $1,640 USD|-3.1%
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
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Retailer 16
October 13, 2026
Retailer 3$505 USD
Retailer 16$560 USD
Retailer 15$705 USD
Retailer 14$752 USD
Retailer 2$894 USD
Retailer 10$925 USD
Retailer 6$1,114 USD
Retailer 5$1,236 USD
Retailer 4$1,631 USD
Retailer 8$1,833 USD
Retailer 9$1,848 USD
Retailer 7$1,997 USD
Retailer 12$2,083 USD
Retailer 13$2,097 USD
Retailer 11$2,250 USD
Brilliant Earth$5,080 USD

21 data points across 16 retailers

9 retailers

Retailer 1
-
$1,536 USD
HK$12,000 HKD
Price last confirmed 25 days ago
Retailer 2
-
$1,631 USD
£1,284 GBP
View
Price last confirmed 27 days ago
Retailer 3
-
$1,833 USD
View
Price last confirmed 27 days ago
B+
Retailer 4
-
$1,848 USD
View
Retailer 5
-
$1,997 USD
View
Price last confirmed 27 days ago
Retailer 6
-
$2,083 USD
£1,640 GBP
View
Price last confirmed 27 days ago
Retailer 7
-
$2,097 USD
View
Price last confirmed 26 days ago
Retailer 8
-
$2,250 USD
View
Price last confirmed 26 days ago
Most Expensive
Brilliant Earth
16038360A · Oct 6
$5,080 USD
View
Price last confirmed 25 days ago
8 more retailers have this diamond
Prices start from $1,848 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.

B+
3.51ct Cushion
$1,848 USD