Cushion|Lab Grown|IGI

4.00ct G VVS2 Cushion Lab Grown Diamond

VG • G/VVS2 • IGI LG831605978

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

Certificate IGI LG831605978

Diamond specifications and retailer prices

From $1,146 USD
As of October 30, 2026
Save $2,884 USD (72%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,030 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4ct lab-grown cushion diamond

This 4ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG831605978 or 831605978. Listed at 12 retailers as of October 29, 2026, with prices from $1,146 to $4,030, a $2,884 spread on the same certified stone. Brilliant Earth lists it at $4,030. 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

4.00
Carat
G
Color
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831605978
Dimensions9.61 × 9.21 × 5.83 mm
L/W Ratio1.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.61 mm9.21 mm4.00 ctG / VVS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831605978
Side View
Table 66.0%Crown 39°Girdle: THK-VTKPavilion 40.3°Culet: NoneDepth 63.3%

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 30
Current: $4,030 USD|Low: $776 USD|High: $4,150 USD|Avg: $2,038 USD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 10$776 USD
Retailer 11$1,146 USD
Retailer 5$1,187 USD
Retailer 9$1,188 USD
Retailer 2$1,216 USD
Retailer 12$1,512 USD
Retailer 7$1,545 USD
Retailer 8$2,339 USD
Retailer 4$2,506 USD
Retailer 6$3,073 USD
Retailer 3$3,499 USD
Brilliant Earth$4,030 USD

41 data points across 12 retailers

12 retailers$1,146 USD to $4,030 USD

Retailer 1
-
$776 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
$1,146 USD
View
A
Retailer 3
-
$1,187 USD
€1,130 EUR
View
B+
Retailer 4
-
$1,188 USD
View
A
Retailer 5
-
$1,216 USD
£957 GBP
View
B+
Retailer 6
-
$1,512 USD
View
A
Retailer 7
-
$1,545 USD
ZAR 24,957 ZAR
View
B+
Retailer 8
-
$2,339 USD
View
B
Retailer 9
-
$2,506 USD
View
B
Retailer 10
-
$3,073 USD
£2,420 GBP
View
B
Retailer 11
-
$3,570 USD
View
Most Expensive
B
Brilliant Earth
21395819A · Oct 29
$4,030 USD
View
11 more retailers have this diamond
Prices start from $1,146 USDSave up to $2,884 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
4.00ct Cushion
$1,146 USD