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Heart|Lab Grown|IGI

3.03ct G SI1 Heart Lab Grown Diamond

EX • G/SI1 • IGI LG846660575

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846660575

Diamond specifications and retailer prices

From $677 NZD
$381 USD
As of November 3, 2026
Save $3,323 NZD (83%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,001 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.03ct lab-grown heart diamond

This 3.03ct lab-grown heart sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG846660575 or 846660575. Listed at 3 retailers as of November 2, 2026, with prices from $677 to $4,001, a $3,323 spread on the same certified stone. Brilliant Earth lists it at $4,001. 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

3.03
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846660575
Dimensions9.20 × 10.11 × 5.68 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
9.20 mm10.11 mm3.03 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846660575
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 56.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: $4,001 NZD|Low: $677 NZD|High: $7,005 NZD|Avg: $3,021 NZD|-42.9%
Brilliant Earth
Retailer 2
Retailer 3
November 3, 2026
Retailer 3$677 NZD
Retailer 2$1,396 NZD
Brilliant Earth$4,001 NZD

17 data points across 3 retailers

3 retailers$677 NZD to $4,001 NZD

A
Cheapest Retailer
-
$677 NZD
$381 USD
Final sale: no returns
A
Retailer 2
-
$1,396 NZD
£618 GBP
View
Most Expensive
B
Brilliant Earth
22178647A · Nov 2
$4,001 NZD
$2,250 USD
View
2 more retailers have this diamond
Prices start from $677 NZDSave up to $3,323 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
3.03ct Heart
$677 NZD