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Oval|Lab Grown|IGI

4.54ct H SI1 Oval Lab Grown Diamond

GD • H/SI1 • IGI LG571378812

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG571378812

Diamond specifications and retailer prices

From $5,177 NZD
$2,870 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: $5,177 NZD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 4.54ct lab-grown oval diamond

This 4.54ct lab-grown oval sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG571378812 or 571378812. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.54
Carat
H
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG571378812
Dimensions13.22 × 9.42 × 5.87 mm
L/W Ratio1.40
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
13.22 mm9.42 mm4.54 ctH / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG571378812
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $5,177 NZD|Low: $673 NZD|High: $6,389 NZD|Avg: $2,991 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
September 2, 2026
Retailer 4$673 NZD
Retailer 9$1,326 NZD
Retailer 3$1,425 NZD
Retailer 6$1,436 NZD
Retailer 8$2,190 NZD
Retailer 7$2,590 NZD
Retailer 2$4,061 NZD
Retailer 5$4,768 NZD
Brilliant Earth$5,177 NZD

43 data points across 9 retailers

1 retailer

B
Brilliant Earth
7622465A · Nov 6
$5,177 NZD
$2,870 USD
View

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.

B
4.54ct Oval
$5,177 NZD