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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 $532 AUD
$374 USD
As of October 30, 2026
Save $2,064 AUD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,596 AUD 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 $532 to $2,596, a $2,064 spread on the same certified stone. MOH London lists it at $2,596. 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

How it works →
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: $2,596 AUD|Low: $532 AUD|High: $7,602 AUD|Avg: $1,791 AUD
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$532 AUD
Retailer 4$618 AUD
Retailer 10$661 AUD
Retailer 14$729 AUD
Retailer 11$876 AUD
Retailer 9$904 AUD
Retailer 3$1,052 AUD
Retailer 12$1,110 AUD
Retailer 2$1,184 AUD
Retailer 6$1,402 AUD
Retailer 8$1,854 AUD
Retailer 13$2,124 AUD
Retailer 15$2,224 AUD
MOH London$2,596 AUD
Retailer 7$7,602 AUD

5 data points across 15 retailers

13 retailers$532 AUD to $2,596 AUD

A
Cheapest Retailer
-
$532 AUD
$374 USD
A
Retailer 2
-
$618 AUD
$434 USD
View
A
Retailer 3
-
$661 AUD
$464 USD
View
A
Retailer 4
-
$729 AUD
HK$4,000 HKD
View
A
Retailer 5
-
$876 AUD
$615 USD
View
A
Retailer 6
-
$904 AUD
£500 GBP
View
B+
Retailer 7
-
$1,052 AUD
$739 USD
View
A
Retailer 8
-
$1,110 AUD
$780 USD
View
A
Retailer 9
-
$1,184 AUD
£655 GBP
View
B
Retailer 10
-
$1,854 AUD
$1,302 USD
View
B+
Retailer 11
-
$2,124 AUD
$1,492 USD
View
B
Retailer 12
-
$2,224 AUD
$1,562 USD
View
Most Expensive
B
MOH London
LG743556975 · Oct 29
$2,596 AUD
£1,436 GBP
View
12 more retailers have this diamond
Prices start from $532 AUDSave up to $2,064 AUD

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
$532 AUD