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Round|Lab Grown|IGI

1.50ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG794627540

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794627540

Diamond specifications and retailer prices

From $330 AUD
As of November 5, 2026
Save $1,533 AUD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,863 AUD at Brilliant Earth · As of November 5, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG794627540 or 794627540. Listed at 22 retailers as of November 5, 2026, with prices from $330 to $1,863, a $1,533 spread on the same certified stone. Brilliant Earth lists it at $1,863. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794627540
Dimensions7.44 × 7.42 × 4.48 mm
L/W Ratio1.00
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
7.44 mm7.42 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794627540
Side View
Table 59.0%Crown 33.1°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.3%

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: Nov 5
Current: $1,863 AUD|Low: $327 AUD|High: $1,863 AUD|Avg: $877 AUD|+1.6%
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 9$330 AUD
Retailer 16$368 AUD
Retailer 18$383 AUD
Retailer 4$409 AUD
Retailer 5$410 AUD
Retailer 6$697 AUD
Retailer 2$709 AUD
Retailer 11$748 AUD
Retailer 12$755 AUD
Retailer 3$777 AUD
Retailer 17$821 AUD
Retailer 14$1,062 AUD
Retailer 10$1,317 AUD
Retailer 15$1,322 AUD
Retailer 8$1,393 AUD
Retailer 13$1,637 AUD
Retailer 7$1,861 AUD
Brilliant Earth$1,863 AUD

29 data points across 18 retailers

22 retailers$330 AUD to $1,863 AUD

A
Cheapest Retailer
-
$330 AUD
A
Retailer 2
-
$368 AUD
View
Final sale: no returns
Retailer 3
-
$381 AUD
View
Price last confirmed 66 days ago
A
Retailer 4
-
$383 AUD
View
A
Retailer 5
-
$409 AUD
View
Retailer 6
-
$410 AUD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$627 AUD
View
A
Retailer 8
-
$697 AUD
View
A
Retailer 9
-
$709 AUD
View
A
Retailer 10
-
$748 AUD
View
A
Retailer 11
-
$755 AUD
View
B+
Retailer 12
-
$777 AUD
View
B+
Retailer 13
-
$821 AUD
View
B+
Retailer 14
-
$1,062 AUD
View
B+
Retailer 15
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$1,138 AUD
View
Retailer 16
-
$1,305 AUD
View
Price last confirmed 46 days ago
B
Retailer 17
-
$1,317 AUD
View
B
Retailer 18
-
$1,322 AUD
View
B
Retailer 19
-
$1,393 AUD
View
B
Retailer 20
-
$1,637 AUD
View
B
Retailer 21
-
$1,861 AUD
View
Most Expensive
B
Brilliant Earth
20701253A · Nov 5
$1,863 AUD
$1,280 USD
View
21 more retailers have this diamond
Prices start from $330 AUDSave up to $1,533 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
$330 AUD