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Round|Lab Grown|IGI

1.50ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG843652623

Shape and cutting style on the report: Round brilliant

Certificate IGI LG843652623

Diamond specifications and retailer prices

From $356 AUD
$250 USD
As of October 25, 2026
Save $1,552 AUD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,908 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 LG843652623 or 843652623. Listed at 10 retailers as of October 25, 2026, with prices from $356 to $1,908, a $1,552 spread on the same certified stone. Brilliant Earth lists it at $1,908. 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 angle32.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843652623
Dimensions7.39 × 7.34 × 4.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.39 mm7.34 mm1.50 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843652623
Side View
Table 56.0%Crown 32.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.2%

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 25
Current: $1,908 AUD|Low: $356 AUD|High: $1,908 AUD|Avg: $784 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$356 AUD
Retailer 5$391 AUD
Retailer 7$580 AUD
Retailer 8$593 AUD
Retailer 6$638 AUD
Retailer 2$683 AUD
Retailer 4$801 AUD
Retailer 3$1,196 AUD
Retailer 9$1,678 AUD
Brilliant Earth$1,908 AUD

14 data points across 10 retailers

10 retailers$356 AUD to $1,908 AUD

A
Cheapest Retailer
-
$356 AUD
$250 USD
A
Retailer 2
-
$391 AUD
$275 USD
View
Final sale: no returns
A
Retailer 3
-
$580 AUD
£321 GBP
View
A
Retailer 4
-
$593 AUD
€397 EUR
View
B+
Retailer 5
-
$638 AUD
$448 USD
View
B+
Retailer 6
-
$683 AUD
£378 GBP
View
B+
Retailer 7
-
$801 AUD
$563 USD
View
B
Retailer 8
-
$1,196 AUD
$840 USD
View
B
Retailer 9
-
$1,678 AUD
£928 GBP
View
Most Expensive
B
Brilliant Earth
22327261A · Oct 29
$1,908 AUD
$1,340 USD
View
9 more retailers have this diamond
Prices start from $356 AUDSave up to $1,552 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
1.50ct Round
$356 AUD