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Heart|Lab Grown|IGI

1.00ct E SI2 Heart Lab Grown Diamond

ID • E/SI2 • IGI LG831648756

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831648756

Diamond specifications and retailer prices

From $280 NZD
As of November 6, 2026
Save $1,177 NZD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,457 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct 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 LG831648756 or 831648756. Listed at 16 retailers as of November 4, 2026, with prices from $280 to $1,457, a $1,177 spread on the same certified stone. MOH London lists it at $1,457. 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

1.00
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831648756
Dimensions6.84 × 6.22 × 4.06 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.84 mm6.22 mm1.00 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831648756
Side View
Table 66.0%Crown 34.1°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 59.4%

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: $1,457 NZD|Low: $278 NZD|High: $1,494 NZD|Avg: $719 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 6$280 NZD
Retailer 3$368 NZD
Retailer 2$415 NZD
Retailer 4$478 NZD
Retailer 5$529 NZD
Retailer 10$538 NZD
Retailer 8$584 NZD
Retailer 7$593 NZD
Retailer 9$801 NZD
Retailer 11$864 NZD
Retailer 12$1,010 NZD
MOH London$1,457 NZD

42 data points across 12 retailers

16 retailers$280 NZD to $1,457 NZD

Retailer 1
-
$254 NZD
Price last confirmed 20 days ago
A
Retailer 2
-
$280 NZD
View
Final sale: no returns
Retailer 3
-
$296 NZD
View
Price last confirmed 22 days ago
Retailer 4
-
$316 NZD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$368 NZD
View
A
Retailer 6
-
$415 NZD
View
Retailer 7
-
$478 NZD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
$529 NZD
View
B+
Retailer 9
-
$538 NZD
View
B+
Retailer 10
-
$584 NZD
View
B+
Retailer 11
-
$593 NZD
View
B
Retailer 12
-
$801 NZD
View
B
Retailer 13
-
$864 NZD
View
B
Retailer 14
-
$1,010 NZD
View
Retailer 15
-
$1,016 NZD
View
Price last confirmed 21 days ago
Most Expensive
B
MOH London
LG831648756 · Nov 4
$1,457 NZD
£636 GBP
View
15 more retailers have this diamond
Prices start from $280 NZDSave up to $1,177 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
1.00ct Heart
$280 NZD