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Heart|Lab Grown|IGI

1.00ct K SI1 Heart Lab Grown Diamond

ID • K/SI1 • IGI LG825631482

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG825631482

Diamond specifications and retailer prices

From $446 NZD
As of November 6, 2026
Save $1,850 NZD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,296 NZD at MOH London · As of November 1, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG825631482 or 825631482. Listed at 11 retailers as of November 1, 2026, with prices from $446 to $2,296, a $1,850 spread on the same certified stone. MOH London lists it at $2,296. 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
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.9°
Pavilion angle30.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825631482
Dimensions6.44 × 5.71 × 3.68 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa Faint Pinkish Brown
Top View
6.44 mm5.71 mm1.00 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI LG825631482
Side View
Table 64.0%Crown 39.9°Girdle: THK-VTKPavilion 30.3°Culet: NoneDepth 57.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,296 NZD|Low: $444 NZD|High: $2,323 NZD|Avg: $1,063 NZD|-1.0%
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 4$446 NZD
Retailer 10$536 NZD
Retailer 9$572 NZD
Retailer 11$572 NZD
Retailer 6$682 NZD
Retailer 5$855 NZD
Retailer 7$857 NZD
Retailer 3$1,145 NZD
Retailer 8$1,759 NZD
Retailer 2$1,775 NZD
MOH London$2,296 NZD

35 data points across 11 retailers

11 retailers$446 NZD to $2,296 NZD

A
Cheapest Retailer
-
$446 NZD
B+
Retailer 2
-
$536 NZD
View
B+
Retailer 3
-
$572 NZD
View
Retailer 4
-
$572 NZD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$682 NZD
View
A
Retailer 6
-
$855 NZD
View
B+
Retailer 7
-
$857 NZD
View
B+
Retailer 8
-
$1,145 NZD
View
B
Retailer 9
-
$1,759 NZD
View
B
Retailer 10
-
$1,775 NZD
View
Most Expensive
B
MOH London
LG825631482 · Nov 1
$2,296 NZD
£1,002 GBP
View
10 more retailers have this diamond
Prices start from $446 NZDSave up to $1,850 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
$446 NZD