CaratHunter
Plans
Heart|Lab Grown|IGI

4.55ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG821603031

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG821603031

Diamond specifications and retailer prices

From $1,198 NZD
$674 USD
As of October 30, 2026
Save $8,382 NZD (87%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,580 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.55ct lab-grown heart diamond

This 4.55ct 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 LG821603031 or 821603031. Listed at 20 retailers as of October 30, 2026, with prices from $1,198 to $9,580, a $8,382 spread on the same certified stone. Brilliant Earth lists it at $9,580. 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

4.55
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821603031
Dimensions10.71 × 11.10 × 6.64 mm
L/W Ratio1.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.71 mm11.10 mm4.55 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821603031
Side View
Table 60.0%Crown 37.9°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 59.8%

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 30
Current: $9,580 NZD|Low: $1,161 NZD|High: $9,864 NZD|Avg: $3,313 NZD|-2.9%
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
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 8$1,198 NZD
Retailer 18$1,303 NZD
Retailer 6$1,340 NZD
Retailer 11$1,388 NZD
Retailer 20$1,388 NZD
Retailer 15$1,706 NZD
Retailer 12$1,779 NZD
Retailer 5$2,035 NZD
Retailer 2$2,222 NZD
Retailer 14$2,956 NZD
Retailer 13$2,976 NZD
Retailer 17$3,041 NZD
Retailer 19$3,530 NZD
Retailer 10$3,905 NZD
Retailer 3$4,584 NZD
Retailer 7$4,737 NZD
Retailer 4$4,790 NZD
Retailer 9$4,941 NZD
Retailer 16$5,857 NZD
Brilliant Earth$9,580 NZD

42 data points across 20 retailers

20 retailers$1,198 NZD to $9,580 NZD

A
Cheapest Retailer
-
$1,198 NZD
$674 USD
A
Retailer 2
-
$1,303 NZD
$733 USD
View
A
Retailer 3
-
$1,340 NZD
$754 USD
View
Final sale: no returns
Retailer 4
-
$1,388 NZD
$781 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$1,388 NZD
$781 USD
View
A
Retailer 6
-
$1,706 NZD
$960 USD
View
B+
Retailer 7
-
$1,779 NZD
$1,001 USD
View
A
Retailer 8
-
$2,035 NZD
$1,145 USD
View
A
Retailer 9
-
$2,222 NZD
£985 GBP
View
A
Retailer 10
-
$2,956 NZD
ZAR 26,865 ZAR
View
A
Retailer 11
-
$2,976 NZD
A$2,576 AUD
View
A
Retailer 12
-
$3,041 NZD
$1,711 USD
View
B+
Retailer 13
-
$3,530 NZD
$1,986 USD
View
B+
Retailer 14
-
$3,905 NZD
$2,197 USD
View
B+
Retailer 15
-
$4,584 NZD
$2,579 USD
View
B+
Retailer 16
-
$4,737 NZD
$2,665 USD
View
B+
Retailer 17
-
$4,790 NZD
$2,695 USD
View
B+
Retailer 18
-
$4,941 NZD
$2,780 USD
View
Retailer 19
-
$5,857 NZD
£2,595 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21127833A · Oct 31
$9,580 NZD
$5,390 USD
View
19 more retailers have this diamond
Prices start from $1,198 NZDSave up to $8,382 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
4.55ct Heart
$1,198 NZD