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Heart|Lab Grown|IGI

4.54ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG762542912

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG762542912

Diamond specifications and retailer prices

From $1,865 NZD
HK$8,200 HKD
As of November 1, 2026
Save $737 NZD (28%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,049 NZD at MOH London · As of October 25, 2026
View at MOH London

About this 4.54ct lab-grown heart diamond

This 4.54ct lab-grown heart 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 LG762542912 or 762542912. Listed at 4 retailers as of November 1, 2026, with a 39% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.54
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762542912
Dimensions9.84 × 10.82 × 5.98 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.84 mm10.82 mm4.54 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762542912
Side View
Table 60.0%Crown 37.7°Girdle: THK-VTKPavilion 32°Culet: NoneDepth 55.3%

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: Nov 1
Current: $6,049 NZD|Low: $1,715 NZD|High: $6,074 NZD|Avg: $3,077 NZD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 25, 2026
Retailer 8$1,715 NZD
Retailer 9$1,795 NZD
Retailer 2$1,865 NZD
Retailer 5$2,233 NZD
Retailer 3$2,245 NZD
Retailer 4$2,602 NZD
Retailer 7$4,490 NZD
Retailer 6$4,630 NZD
MOH London$6,049 NZD

5 data points across 9 retailers

4 retailers$1,865 NZD to $2,602 NZD

A
Cheapest Retailer
-
$1,865 NZD
HK$8,200 HKD
A
Retailer 2
-
$2,245 NZD
$1,263 USD
View
A
Retailer 3
-
$2,602 NZD
$1,464 USD
View
Most Expensive
MOH London
LG762542912 · Oct 25
$6,049 NZD
£2,680 GBP
View
Price last confirmed 8 days ago
3 more retailers have this diamond
Prices start from $1,865 NZDSave up to $737 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
4.54ct Heart
$1,865 NZD