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Round|Lab Grown|IGI

1.50ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG786661952

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786661952

Diamond specifications and retailer prices

From $327 AUD
As of November 6, 2026
Save $1,084 AUD (77%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,728 AUD at MOH London · As of October 26, 2026
View at MOH London

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 LG786661952 or 786661952. Listed at 18 retailers as of November 5, 2026, with a 331% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle34.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786661952
Dimensions7.25 × 7.31 × 4.56 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
7.25 mm7.31 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786661952
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,728 AUD|Low: $327 AUD|High: $1,907 AUD|Avg: $885 AUD|+15.4%
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
November 6, 2026
Retailer 7$327 AUD
Retailer 4$409 AUD
Retailer 2$594 AUD
Retailer 8$633 AUD
Retailer 10$633 AUD
Retailer 6$662 AUD
Retailer 5$741 AUD
Retailer 12$792 AUD
Retailer 3$1,121 AUD
Retailer 9$1,179 AUD
Retailer 13$1,192 AUD
Retailer 11$1,412 AUD
MOH London$1,728 AUD

43 data points across 13 retailers

18 retailers$327 AUD to $1,412 AUD

Retailer 1
-
$298 AUD
Price last confirmed 27 days ago
A
Retailer 2
-
$327 AUD
View
Final sale: no returns
Retailer 3
-
$345 AUD
View
Price last confirmed 24 days ago
Retailer 4
-
$370 AUD
View
Price last confirmed 35 days ago
A
Retailer 5
-
$409 AUD
View
A
Retailer 6
-
$594 AUD
View
B+
Retailer 7
-
$633 AUD
View
A
Retailer 8
-
$633 AUD
View
A
Retailer 9
-
$662 AUD
View
Retailer 10
-
$741 AUD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$792 AUD
View
B+
Retailer 12
-
$953 AUD
View
Retailer 13
-
$1,121 AUD
View
Price last confirmed 12 days ago
B+
Retailer 14
-
$1,179 AUD
View
Retailer 15
-
$1,188 AUD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
$1,192 AUD
View
B
Retailer 17
-
$1,412 AUD
View
Most Expensive
MOH London
LG786661952 · Oct 26
$1,728 AUD
£935 GBP
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from $327 AUDSave up to $1,084 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
$327 AUD