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Round|Lab Grown|IGI

1.50ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG774639549

Shape and cutting style on the report: Round brilliant

Certificate IGI LG774639549

Diamond specifications and retailer prices

From $794 AUD
As of October 29, 2026
Save $388 AUD (33%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,181 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG774639549 or 774639549. Listed at 2 retailers as of October 29, 2026, with prices from $794 to $1,181, a $388 spread on the same certified stone. Brilliant Earth lists it at $1,181. 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

1.50
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774639549
Dimensions7.41 × 7.35 × 4.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.41 mm7.35 mm1.50 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774639549
Side View
Table 58.0%Crown 33.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $1,181 AUD|Low: $413 AUD|High: $1,936 AUD|Avg: $957 AUD|-39.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
September 9, 2026
Retailer 6$451 AUD
Retailer 8$581 AUD
Retailer 5$619 AUD
Retailer 9$631 AUD
Retailer 2$794 AUD
Retailer 11$817 AUD
Retailer 4$854 AUD
Retailer 3$870 AUD
Retailer 7$1,177 AUD
Brilliant Earth$1,181 AUD
Retailer 10$1,489 AUD

55 data points across 11 retailers

2 retailers$794 AUD to $1,181 AUD

B+
Cheapest Retailer
-
$794 AUD
Most Expensive
B
Brilliant Earth
18474969Y · Oct 29
$1,181 AUD
$830 USD
View
1 more retailer has this diamond
Prices start from $794 AUDSave up to $388 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.

B+
1.50ct Round
$794 AUD