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Cushion|Lab Grown|IGI

4.50ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG517200654

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG517200654

Diamond specifications and retailer prices

From $1,613 NZD
$909 USD
As of October 29, 2026
Save $7,312 NZD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,925 NZD at Brilliant Earth · As of October 30, 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 LG517200654 or 517200654. Listed at 12 retailers as of October 29, 2026, with prices from $1,613 to $8,925, a $7,312 spread on the same certified stone. Brilliant Earth lists it at $8,925. 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 angle37.9°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG517200654
Dimensions9.54 × 8.95 × 5.82 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.54 mm8.95 mm4.50 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG517200654
Side View
Table 66.0%Crown 37.9°Girdle: STK-VTKPavilion 32.5°Culet: NoneDepth 65.0%

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 29
Current: $8,925 NZD|Low: $1,540 NZD|High: $11,675 NZD|Avg: $4,083 NZD|-23.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 10$1,613 NZD
Retailer 2$1,987 NZD
Retailer 8$2,298 NZD
Retailer 4$2,561 NZD
Retailer 6$2,695 NZD
Retailer 9$2,740 NZD
Retailer 7$4,624 NZD
Retailer 11$5,326 NZD
Retailer 3$5,787 NZD
Retailer 5$6,303 NZD
Brilliant Earth$8,925 NZD

38 data points across 11 retailers

12 retailers$1,613 NZD to $8,925 NZD

A
Cheapest Retailer
-
$1,613 NZD
$909 USD
Final sale: no returns
A
Retailer 2
-
$1,987 NZD
$1,120 USD
View
A
Retailer 3
-
$2,298 NZD
$1,295 USD
View
A
Retailer 4
-
$2,561 NZD
£1,137 GBP
View
A
Retailer 5
-
$2,695 NZD
$1,519 USD
View
A
Retailer 6
-
$2,740 NZD
$1,544 USD
View
B+
Retailer 7
-
$4,624 NZD
£2,052 GBP
View
B+
Retailer 8
-
$5,326 NZD
$3,002 USD
View
B
Retailer 9
-
$5,787 NZD
$3,262 USD
View
B
Retailer 10
-
$6,303 NZD
£2,797 GBP
View
B
Retailer 11
-
$7,063 NZD
HK$31,100 HKD
View
Most Expensive
B
Brilliant Earth
17972656A · Oct 30
$8,925 NZD
$5,030 USD
View
11 more retailers have this diamond
Prices start from $1,613 NZDSave up to $7,312 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
$1,613 NZD