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Oval|Lab Grown|IGI

4.52ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG728517416

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG728517416

Diamond specifications and retailer prices

From $994 NZD
$560 USD
As of October 29, 2026
Save $4,385 NZD (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $13,236 NZD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 4.52ct lab-grown oval diamond

This 4.52ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG728517416 or 728517416. Listed at 18 retailers as of October 29, 2026, with a 441% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.52
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728517416
Dimensions13.48 × 9.46 × 5.68 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.48 mm9.46 mm4.52 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728517416
Side View
Table 62.0%Crown 31°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 60.0%

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 29
Current: $13,236 NZD|Low: $994 NZD|High: $13,644 NZD|Avg: $3,501 NZD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 10$994 NZD
Retailer 4$1,112 NZD
Retailer 11$1,233 NZD
Retailer 7$1,473 NZD
Retailer 12$1,900 NZD
Retailer 2$1,923 NZD
Retailer 3$1,961 NZD
Retailer 6$2,685 NZD
Retailer 9$2,773 NZD
Retailer 5$5,379 NZD
Retailer 8$5,846 NZD
Brilliant Earth$13,236 NZD

41 data points across 12 retailers

18 retailers$994 NZD to $5,379 NZD

A
Cheapest Retailer
-
$994 NZD
$560 USD
A
Retailer 2
-
$1,112 NZD
$627 USD
View
Final sale: no returns
A
Retailer 3
-
$1,112 NZD
$627 USD
View
A
Retailer 4
-
$1,233 NZD
$695 USD
View
Retailer 5
-
$1,233 NZD
$695 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$1,473 NZD
$830 USD
View
B+
Retailer 7
-
$1,900 NZD
$1,071 USD
View
A
Retailer 8
-
$1,923 NZD
£853 GBP
View
A
Retailer 9
-
$1,961 NZD
$1,105 USD
View
B+
Retailer 10
-
$2,685 NZD
A$2,328 AUD
View
B+
Retailer 11
-
$2,773 NZD
$1,563 USD
View
Retailer 12
-
$2,945 NZD
$1,660 USD
View
Price last confirmed 44 days ago
B+
Retailer 13
-
$3,242 NZD
$1,827 USD
View
B+
Retailer 14
-
$3,245 NZD
$1,829 USD
View
B
Retailer 15
-
$3,996 NZD
$2,252 USD
View
B
Retailer 16
-
$5,379 NZD
£2,387 GBP
View
Retailer 17
-
$5,846 NZD
$3,295 USD
View
Price last confirmed 9 days ago
Most Expensive
Brilliant Earth
15507194A · Oct 28
$13,236 NZD
$7,460 USD
View
Price under review
17 more retailers have this diamond
Prices start from $994 NZDSave up to $4,385 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 Oval
$994 NZD