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Heart|Lab Grown|IGI

1.07ct D SI1 Heart Lab Grown Diamond

EX • D/SI1 • IGI LG840647031

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840647031

Diamond specifications and retailer prices

From $339 NZD
As of November 6, 2026
Save $906 NZD (73%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,245 NZD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.07ct lab-grown heart diamond

This 1.07ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG840647031 or 840647031. Listed at 3 retailers as of November 6, 2026, with prices from $339 to $1,245, a $906 spread on the same certified stone. Brilliant Earth lists it at $1,245. 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

1.07
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840647031
Dimensions6.55 × 7.03 × 4.10 mm
L/W Ratio1.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.55 mm7.03 mm1.07 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840647031
Side View
Table 56.0%Crown 33°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 58.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,245 NZD|Low: $339 NZD|High: $1,948 NZD|Avg: $1,026 NZD|-36.1%
Brilliant Earth
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$339 NZD
Retailer 2$680 NZD
Brilliant Earth$1,245 NZD

33 data points across 3 retailers

3 retailers$339 NZD to $1,245 NZD

A
Cheapest Retailer
-
$339 NZD
Final sale: no returns
B+
Retailer 2
-
$680 NZD
View
Most Expensive
B
Brilliant Earth
21623100A · Nov 6
$1,245 NZD
$690 USD
View
2 more retailers have this diamond
Prices start from $339 NZDSave up to $906 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
1.07ct Heart
$339 NZD