Cushion|Lab Grown|IGI

3.51ct G VS2 Cushion Lab Grown Diamond

VG • G/VS2 • IGI LG841661523

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG841661523

Diamond specifications and retailer prices

From $640 USD
HK$5,000 HKD
As of October 31, 2026
Save $2,510 USD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,150 USD at Brilliant Earth · As of October 30, 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 very-good cut grade and certified by IGI LG841661523 or 841661523. Listed at 14 retailers as of October 30, 2026, with prices from $640 to $3,150, a $2,510 spread on the same certified stone. Brilliant Earth lists it at $3,150. 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
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841661523
Dimensions10.16 × 7.86 × 4.93 mm
L/W Ratio1.29
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.16 mm7.86 mm3.51 ctG / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841661523
Side View
Table 60.0%Crown 38.1°Girdle: MED-STKPavilion 30.9°Culet: NoneDepth 62.7%

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: $3,150 USD|Low: $529 USD|High: $3,150 USD|Avg: $1,375 USD
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
Retailer 15
October 31, 2026
Retailer 7$529 USD
Retailer 14$640 USD
Retailer 3$666 USD
Retailer 11$725 USD
Retailer 2$856 USD
Retailer 4$915 USD
Retailer 12$967 USD
Retailer 5$1,138 USD
Retailer 10$1,358 USD
Retailer 8$1,861 USD
Retailer 13$2,158 USD
Retailer 6$2,195 USD
Retailer 15$2,220 USD
Retailer 9$2,555 USD
Brilliant Earth$3,150 USD

23 data points across 15 retailers

14 retailers$640 USD to $3,150 USD

A
Cheapest Retailer
-
$640 USD
HK$5,000 HKD
Retailer 2
-
$666 USD
£525 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
$725 USD
View
A
Retailer 4
-
$856 USD
€815 EUR
View
B+
Retailer 5
-
$915 USD
View
A
Retailer 6
-
$967 USD
£762 GBP
View
A
Retailer 7
-
$1,138 USD
View
B+
Retailer 8
-
$1,358 USD
View
B+
Retailer 9
-
$1,861 USD
SGD 2,515 SGD
View
B+
Retailer 10
-
$2,158 USD
£1,699 GBP
View
B
Retailer 11
-
$2,195 USD
View
Retailer 12
-
$2,220 USD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
$2,555 USD
View
Most Expensive
B
Brilliant Earth
21807560A · Oct 30
$3,150 USD
View
13 more retailers have this diamond
Prices start from $640 USDSave up to $2,510 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
$640 USD