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Cushion|Lab Grown|IGI

3.51ct D VS2 Cushion Lab Grown Diamond

ID • D/VS2 • IGI LG747530629

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG747530629

Diamond specifications and retailer prices

From $850 USD
As of October 29, 2026
Save $3,252 USD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,102 USD at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG747530629 or 747530629. Listed at 13 retailers as of October 29, 2026, with prices from $850 to $4,102, a $3,252 spread on the same certified stone. Frank Darling lists it at $4,102. 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
D
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747530629
Dimensions8.66 × 8.47 × 5.37 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.66 mm8.47 mm3.51 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747530629
Side View
Table 62.0%Crown 34.5°Girdle: MED-THKPavilion 33.5°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
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 29
Current: $4,102 USD|Low: $780 USD|High: $5,240 USD|Avg: $2,129 USD|-5.4%
Frank Darling
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
October 30, 2026
Retailer 8$850 USD
Retailer 12$934 USD
Retailer 5$1,014 USD
Retailer 2$1,037 USD
Retailer 10$1,102 USD
Retailer 7$1,156 USD
Retailer 4$1,201 USD
Retailer 14$1,727 USD
Retailer 3$2,624 USD
Retailer 9$2,699 USD
Retailer 13$2,975 USD
Retailer 11$3,145 USD
Frank Darling$4,102 USD
Retailer 6$4,720 USD

36 data points across 14 retailers

13 retailers$850 USD to $4,102 USD

A
Cheapest Retailer
-
$850 USD
A
Retailer 2
-
$934 USD
HK$7,300 HKD
View
A
Retailer 3
-
$1,014 USD
View
A
Retailer 4
-
$1,037 USD
£816 GBP
View
A
Retailer 5
-
$1,102 USD
View
A
Retailer 6
-
$1,156 USD
€1,101 EUR
View
A
Retailer 7
-
$1,201 USD
View
B+
Retailer 8
-
$1,727 USD
View
Retailer 9
-
$2,624 USD
A$4,037 AUD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
$2,699 USD
SGD 3,647 SGD
View
Retailer 11
-
$2,975 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$3,145 USD
£2,476 GBP
View
Most Expensive
B
Frank Darling
129039-BBNG · Oct 29
$4,102 USD
View
12 more retailers have this diamond
Prices start from $850 USDSave up to $3,252 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
$850 USD