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Heart|Lab Grown|IGI

1.05ct E SI2 Heart Lab Grown Diamond

EX • E/SI2 • IGI LG825687180

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825687180

Diamond specifications and retailer prices

From $308 NZD
As of November 6, 2026
Save $756 NZD (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,622 NZD at MOH London · As of October 25, 2026
View at MOH London

About this 1.05ct lab-grown heart diamond

This 1.05ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG825687180 or 825687180. Listed at 15 retailers as of November 6, 2026, with a 245% 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

1.05
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.1°
Pavilion angle43.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825687180
Dimensions6.24 × 7.17 × 4.23 mm
L/W Ratio1.15
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.24 mm7.17 mm1.05 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG825687180
Side View
Table 63.0%Crown 34.1°Girdle: MED-STKPavilion 43.1°Culet: NoneDepth 59.0%

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 6
Current: $1,622 NZD|Low: $308 NZD|High: $1,723 NZD|Avg: $804 NZD|-4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5$308 NZD
Retailer 3$391 NZD
Retailer 2$455 NZD
Retailer 10$523 NZD
Retailer 4$590 NZD
Retailer 7$628 NZD
Retailer 6$649 NZD
Retailer 11$895 NZD
Retailer 8$943 NZD
Retailer 9$1,064 NZD
MOH London$1,622 NZD

39 data points across 11 retailers

15 retailers$308 NZD to $1,064 NZD

Retailer 1
-
$280 NZD
Price last confirmed 20 days ago
A
Retailer 2
-
$308 NZD
View
Final sale: no returns
Retailer 3
-
$325 NZD
View
Price last confirmed 22 days ago
Retailer 4
-
$346 NZD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$391 NZD
View
A
Retailer 6
-
$455 NZD
View
B+
Retailer 7
-
$523 NZD
View
B+
Retailer 8
-
$590 NZD
View
B+
Retailer 9
-
$628 NZD
View
B+
Retailer 10
-
$649 NZD
View
B
Retailer 11
-
$895 NZD
View
B
Retailer 12
-
$943 NZD
View
B
Retailer 13
-
$1,064 NZD
View
Retailer 14
-
$1,113 NZD
View
Price last confirmed 21 days ago
Most Expensive
MOH London
LG825687180 · Oct 25
$1,622 NZD
£708 GBP
View
Price last confirmed 12 days ago
14 more retailers have this diamond
Prices start from $308 NZDSave up to $756 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
1.05ct Heart
$308 NZD