Cushion|Lab Grown|IGI

4.50ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG811608540

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

Certificate IGI LG811608540

Diamond specifications and retailer prices

From $700 USD
As of October 27, 2026
Save $3,120 USD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,820 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.5ct lab-grown cushion diamond

This 4.5ct 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 LG811608540 or 811608540. Listed at 17 retailers as of October 27, 2026, with prices from $700 to $3,820, a $3,120 spread on the same certified stone. Brilliant Earth lists it at $3,820. 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

4.50
Carat
G
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811608540
Dimensions9.54 × 9.18 × 5.80 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
9.54 mm9.18 mm4.50 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811608540
Side View
Table 62.0%Crown 34.7°Girdle: STK-THKPavilion 31.3°Culet: NoneDepth 63.2%

Caratlytics Score

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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: $3,820 USD|Low: $700 USD|High: $3,820 USD|Avg: $1,847 USD
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 6$700 USD
Retailer 14$736 USD
Retailer 10$832 USD
Retailer 13$895 USD
Retailer 5$1,091 USD
Retailer 2$1,124 USD
Retailer 16$1,188 USD
Retailer 15$1,209 USD
Retailer 17$1,504 USD
Retailer 3$1,692 USD
Retailer 8$2,256 USD
Retailer 12$2,425 USD
Retailer 7$2,476 USD
Retailer 9$3,020 USD
Retailer 4$3,062 USD
Retailer 11$3,392 USD
Brilliant Earth$3,820 USD

34 data points across 17 retailers

17 retailers$700 USD to $3,820 USD

A
Cheapest Retailer
-
$700 USD
Final sale: no returns
A
Retailer 2
-
$736 USD
£580 GBP
View
A
Retailer 3
-
$832 USD
HK$6,500 HKD
View
A
Retailer 4
-
$895 USD
View
A
Retailer 5
-
$1,091 USD
View
A
Retailer 6
-
$1,124 USD
€1,070 EUR
View
B+
Retailer 7
-
$1,188 USD
View
A
Retailer 8
-
$1,209 USD
£952 GBP
View
A
Retailer 9
-
$1,504 USD
View
A
Retailer 10
-
$1,692 USD
View
B+
Retailer 11
-
$2,256 USD
£1,776 GBP
View
B+
Retailer 12
-
$2,425 USD
SGD 3,277 SGD
View
B+
Retailer 13
-
$2,476 USD
View
B+
Retailer 14
-
$3,020 USD
View
B+
Retailer 15
-
$3,062 USD
£2,411 GBP
View
B
Retailer 16
-
$3,392 USD
View
Most Expensive
B
Brilliant Earth
20228215A · Oct 29
$3,820 USD
View
16 more retailers have this diamond
Prices start from $700 USDSave up to $3,120 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
4.50ct Cushion
$700 USD