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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 $1,307 NZD
£580 GBP
As of October 27, 2026
Save $5,471 NZD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,778 NZD at Brilliant Earth · As of October 31, 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 16 retailers as of October 27, 2026, with prices from $1,307 to $6,778, a $5,471 spread on the same certified stone. Brilliant Earth lists it at $6,778. 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
Colour
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

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 27
Current: $6,778 NZD|Low: $1,242 NZD|High: $6,778 NZD|Avg: $3,272 NZD
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 31, 2026
Retailer 6$1,242 NZD
Retailer 15$1,307 NZD
Retailer 11$1,476 NZD
Retailer 14$1,588 NZD
Retailer 5$1,936 NZD
Retailer 2$1,977 NZD
Retailer 17$2,108 NZD
Retailer 16$2,145 NZD
Retailer 3$2,669 NZD
Retailer 10$2,970 NZD
Retailer 8$4,002 NZD
Retailer 13$4,303 NZD
Retailer 7$4,393 NZD
Retailer 9$5,358 NZD
Retailer 4$5,433 NZD
Retailer 12$6,018 NZD
Brilliant Earth$6,778 NZD

34 data points across 17 retailers

16 retailers$1,307 NZD to $6,778 NZD

A
Cheapest Retailer
-
$1,307 NZD
£580 GBP
A
Retailer 2
-
$1,476 NZD
HK$6,500 HKD
View
A
Retailer 3
-
$1,588 NZD
$895 USD
View
A
Retailer 4
-
$1,936 NZD
$1,091 USD
View
A
Retailer 5
-
$1,977 NZD
€1,061 EUR
View
B+
Retailer 6
-
$2,108 NZD
$1,188 USD
View
A
Retailer 7
-
$2,145 NZD
£952 GBP
View
A
Retailer 8
-
$2,669 NZD
$1,504 USD
View
A
Retailer 9
-
$2,970 NZD
$1,674 USD
View
Retailer 10
-
$4,002 NZD
£1,776 GBP
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$4,303 NZD
SGD 3,277 SGD
View
B+
Retailer 12
-
$4,393 NZD
$2,476 USD
View
B+
Retailer 13
-
$5,358 NZD
$3,020 USD
View
B+
Retailer 14
-
$5,433 NZD
£2,411 GBP
View
B
Retailer 15
-
$6,018 NZD
$3,392 USD
View
Most Expensive
B
Brilliant Earth
20228215A · Oct 31
$6,778 NZD
$3,820 USD
View
15 more retailers have this diamond
Prices start from $1,307 NZDSave up to $5,471 NZD

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
$1,307 NZD