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Cushion|Lab Grown|IGI

4.05ct D VS2 Cushion Lab Grown Diamond

ID • D/VS2 • IGI LG757525621

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

Certificate IGI LG757525621

Diamond specifications and retailer prices

From $940 USD
As of October 29, 2026
Save $5,880 USD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,820 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 4.05ct lab-grown cushion diamond

This 4.05ct 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 LG757525621 or 757525621. Listed at 12 retailers as of October 28, 2026, with prices from $940 to $6,820, a $5,880 spread on the same certified stone. Brilliant Earth lists it at $6,820. 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

4.05
Carat
D
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757525621
Dimensions9.39 × 9.16 × 6.13 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.39 mm9.16 mm4.05 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757525621
Side View
Table 62.0%Crown 36.1°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 66.9%

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: $6,820 USD|Low: $756 USD|High: $7,970 USD|Avg: $2,384 USD|-14.4%
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
October 29, 2026
Retailer 9$756 USD
Retailer 10$940 USD
Retailer 13$1,183 USD
Retailer 7$1,212 USD
Retailer 12$1,244 USD
Retailer 2$1,280 USD
Retailer 4$1,906 USD
Retailer 3$2,377 USD
Retailer 11$2,602 USD
Retailer 5$2,632 USD
Retailer 8$3,105 USD
Retailer 6$3,231 USD
Brilliant Earth$6,820 USD

38 data points across 13 retailers

12 retailers$940 USD to $6,820 USD

A
Retailer 1
-
$756 USD
£595 GBP
Price last confirmed 13 days ago
A
Retailer 2
-
$940 USD
View
A
Retailer 3
-
$1,183 USD
View
A
Retailer 4
-
$1,212 USD
£955 GBP
View
A
Retailer 5
-
$1,244 USD
View
A
Retailer 6
-
$1,280 USD
€1,219 EUR
View
A
Retailer 7
-
$1,906 USD
View
B+
Retailer 8
-
$2,377 USD
£1,872 GBP
View
B+
Retailer 9
-
$2,602 USD
View
B+
Retailer 10
-
$2,632 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$3,231 USD
£2,544 GBP
View
Most Expensive
B
Brilliant Earth
17039398A · Oct 28
$6,820 USD
View
11 more retailers have this diamond
Prices start from $940 USDSave up to $5,880 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
4.05ct Cushion
$940 USD