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Cushion|Lab Grown|IGI

4.00ct G VVS2 Cushion Lab Grown Diamond

ID • G/VVS2 • IGI LG817634491

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG817634491

Diamond specifications and retailer prices

From $654 USD
£515 GBP
As of October 27, 2026
Save $3,916 USD (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,570 USD at Brilliant Earth · As of October 30, 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 top-tier cut grade and certified by IGI LG817634491 or 817634491. Listed at 20 retailers as of October 27, 2026, with prices from $654 to $4,570, a $3,916 spread on the same certified stone. Brilliant Earth lists it at $4,570. 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

4.00
Carat
G
Color
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle28.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817634491
Dimensions10.68 × 7.98 × 5.10 mm
L/W Ratio1.34
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.68 mm7.98 mm4.00 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817634491
Side View
Table 61.0%Crown 35.5°Girdle: MED-THKPavilion 28.1°Culet: NoneDepth 63.9%

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 27
Current: $4,570 USD|Low: $571 USD|High: $5,160 USD|Avg: $1,667 USD|-11.4%
Brilliant Earth
Retailer 2
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Retailer 21
October 30, 2026
Retailer 7$571 USD
Retailer 17$654 USD
Retailer 20$691 USD
Retailer 16$730 USD
Retailer 15$929 USD
Retailer 8$954 USD
Retailer 18$975 USD
Retailer 9$984 USD
Retailer 19$1,250 USD
Retailer 5$1,279 USD
Retailer 3$1,472 USD
Retailer 6$1,478 USD
Retailer 14$1,844 USD
Retailer 2$2,006 USD
Retailer 12$2,062 USD
Retailer 10$2,084 USD
Retailer 4$2,351 USD
Retailer 21$2,659 USD
Retailer 13$2,772 USD
Retailer 11$3,040 USD
Brilliant Earth$4,570 USD

26 data points across 21 retailers

20 retailers$654 USD to $4,570 USD

A
Cheapest Retailer
-
$654 USD
£515 GBP
A
Retailer 2
-
$691 USD
HK$5,400 HKD
View
A
Retailer 3
-
$730 USD
View
A
Retailer 4
-
$929 USD
€885 EUR
View
A
Retailer 5
-
$954 USD
View
A
Retailer 6
-
$975 USD
£768 GBP
View
B+
Retailer 7
-
$984 USD
View
A
Retailer 8
-
$1,250 USD
ZAR 20,191 ZAR
View
Retailer 9
-
$1,279 USD
A$1,968 AUD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$1,472 USD
View
A
Retailer 11
-
$1,478 USD
View
A
Retailer 12
-
$1,844 USD
£1,452 GBP
View
B+
Retailer 13
-
$2,006 USD
SGD 2,711 SGD
View
B+
Retailer 14
-
$2,062 USD
View
B+
Retailer 15
-
$2,084 USD
View
B+
Retailer 16
-
$2,351 USD
View
Retailer 17
-
$2,659 USD
£2,094 GBP
View
Price last confirmed 9 days ago
B+
Retailer 18
-
$2,772 USD
View
Retailer 19
-
$3,040 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
20781844A · Oct 30
$4,570 USD
View
19 more retailers have this diamond
Prices start from $654 USDSave up to $3,916 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
$654 USD