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Heart|Lab Grown|IGI

3.09ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG743556975

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG743556975

Diamond specifications and retailer prices

From $664 NZD
$374 USD
As of October 30, 2026
Save $2,572 NZD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,236 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 3.09ct lab-grown heart diamond

This 3.09ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG743556975 or 743556975. Listed at 13 retailers as of October 29, 2026, with prices from $664 to $3,236, a $2,572 spread on the same certified stone. MOH London lists it at $3,236. 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

3.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743556975
Dimensions9.15 × 10.39 × 5.66 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.15 mm10.39 mm3.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743556975
Side View
Table 60.0%Crown 34.7°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 54.5%

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: Oct 30
Current: $3,236 NZD|Low: $664 NZD|High: $9,475 NZD|Avg: $2,233 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 5$664 NZD
Retailer 4$770 NZD
Retailer 10$823 NZD
Retailer 14$908 NZD
Retailer 11$1,091 NZD
Retailer 9$1,126 NZD
Retailer 3$1,311 NZD
Retailer 12$1,384 NZD
Retailer 2$1,476 NZD
Retailer 6$1,748 NZD
Retailer 8$2,310 NZD
Retailer 13$2,647 NZD
Retailer 15$2,771 NZD
MOH London$3,236 NZD
Retailer 7$9,475 NZD

5 data points across 15 retailers

13 retailers$664 NZD to $3,236 NZD

A
Cheapest Retailer
-
$664 NZD
$374 USD
A
Retailer 2
-
$770 NZD
$434 USD
View
A
Retailer 3
-
$823 NZD
$464 USD
View
A
Retailer 4
-
$908 NZD
HK$4,000 HKD
View
A
Retailer 5
-
$1,091 NZD
$615 USD
View
A
Retailer 6
-
$1,126 NZD
£500 GBP
View
B+
Retailer 7
-
$1,311 NZD
$739 USD
View
A
Retailer 8
-
$1,384 NZD
$780 USD
View
A
Retailer 9
-
$1,476 NZD
£655 GBP
View
B
Retailer 10
-
$2,310 NZD
$1,302 USD
View
B+
Retailer 11
-
$2,647 NZD
$1,492 USD
View
B
Retailer 12
-
$2,771 NZD
$1,562 USD
View
Most Expensive
B
MOH London
LG743556975 · Oct 29
$3,236 NZD
£1,436 GBP
View
12 more retailers have this diamond
Prices start from $664 NZDSave up to $2,572 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
3.09ct Heart
$664 NZD