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Cushion|Lab Grown|IGI

4.05ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG707531702

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG707531702

Diamond specifications and retailer prices

From $860 USD
As of October 28, 2026
Save $2,460 USD (74%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,320 USD at Brilliant Earth · As of October 31, 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 G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG707531702 or 707531702. Listed at 11 retailers as of October 28, 2026, with prices from $860 to $3,320, a $2,460 spread on the same certified stone. Brilliant Earth lists it at $3,320. 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
G
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG707531702
Dimensions10.53 × 8.62 × 5.86 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.53 mm8.62 mm4.05 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG707531702
Side View
Table 57.0%Crown 32.3°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $3,320 USD|Low: $860 USD|High: $3,460 USD|Avg: $1,815 USD|-4.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 9$860 USD
Retailer 6$909 USD
Retailer 2$993 USD
Retailer 5$1,072 USD
Retailer 10$1,366 USD
Retailer 8$1,409 USD
Retailer 4$1,461 USD
Retailer 3$2,067 USD
Retailer 11$2,085 USD
Retailer 12$2,490 USD
Retailer 7$2,691 USD
Brilliant Earth$3,320 USD

41 data points across 12 retailers

11 retailers$860 USD to $3,320 USD

B+
Cheapest Retailer
-
$860 USD
A
Retailer 2
-
$909 USD
HK$7,100 HKD
View
A
Retailer 3
-
$993 USD
£782 GBP
View
A
Retailer 4
-
$1,072 USD
€1,021 EUR
View
A
Retailer 5
-
$1,366 USD
View
A
Retailer 6
-
$1,409 USD
View
B+
Retailer 7
-
$2,085 USD
View
B+
Retailer 8
-
$2,273 USD
CA$3,157 CAD
View
B
Retailer 9
-
$2,490 USD
View
B+
Retailer 10
-
$2,691 USD
£2,119 GBP
View
Most Expensive
B
Brilliant Earth
16044788A · Oct 31
$3,320 USD
View
10 more retailers have this diamond
Prices start from $860 USDSave up to $2,460 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
$860 USD