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Cushion|Lab Grown|IGI

4.52ct E VS1 Cushion Lab Grown Diamond

ID • E/VS1 • IGI LG818674959

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

Certificate IGI LG818674959

Diamond specifications and retailer prices

From $1,230 NZD
$693 USD
As of October 29, 2026
Save $7,908 NZD (87%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,138 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.52ct lab-grown cushion diamond

This 4.52ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818674959 or 818674959. Listed at 17 retailers as of October 29, 2026, with prices from $1,230 to $9,138, a $7,908 spread on the same certified stone. Brilliant Earth lists it at $9,138. 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

4.52
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818674959
Dimensions9.60 × 9.41 × 6.19 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.60 mm9.41 mm4.52 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818674959
Side View
Table 62.0%Crown 32.5°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 65.8%

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: $9,138 NZD|Low: $1,106 NZD|High: $9,493 NZD|Avg: $3,861 NZD|-3.7%
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 30, 2026
Retailer 3$1,106 NZD
Retailer 4$1,230 NZD
Retailer 14$1,588 NZD
Retailer 5$2,088 NZD
Retailer 11$2,126 NZD
Retailer 10$2,135 NZD
Retailer 13$2,714 NZD
Retailer 2$2,731 NZD
Retailer 15$3,016 NZD
Retailer 17$3,453 NZD
Retailer 9$4,056 NZD
Retailer 7$4,216 NZD
Retailer 6$4,403 NZD
Retailer 12$5,399 NZD
Retailer 8$6,292 NZD
Retailer 16$7,346 NZD
Brilliant Earth$9,138 NZD

33 data points across 17 retailers

17 retailers$1,230 NZD to $9,138 NZD

Retailer 1
-
$1,106 NZD
£491 GBP
Price last confirmed 14 days ago
A
Retailer 2
-
$1,230 NZD
$693 USD
View
Final sale: no returns
A
Retailer 3
-
$1,588 NZD
$895 USD
View
B+
Retailer 4
-
$2,088 NZD
$1,177 USD
View
A
Retailer 5
-
$2,126 NZD
€1,141 EUR
View
A
Retailer 6
-
$2,135 NZD
£948 GBP
View
A
Retailer 7
-
$2,714 NZD
ZAR 24,708 ZAR
View
A
Retailer 8
-
$2,731 NZD
A$2,368 AUD
View
A
Retailer 9
-
$3,016 NZD
$1,700 USD
View
A
Retailer 10
-
$3,453 NZD
$1,946 USD
View
Retailer 11
-
$4,056 NZD
£1,800 GBP
View
Price last confirmed 18 days ago
B+
Retailer 12
-
$4,216 NZD
$2,376 USD
View
B+
Retailer 13
-
$4,403 NZD
$2,482 USD
View
B+
Retailer 14
-
$5,399 NZD
£2,396 GBP
View
Retailer 15
-
$6,292 NZD
A$5,456 AUD
View
Price last confirmed 22 days ago
Retailer 16
-
$7,346 NZD
$4,140 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21057030A · Oct 30
$9,138 NZD
$5,150 USD
View
16 more retailers have this diamond
Prices start from $1,230 NZDSave up to $7,908 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
4.52ct Cushion
$1,230 NZD