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Round|Lab Grown|IGI

1.50ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG803613582

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803613582

Diamond specifications and retailer prices

From $320 AUD
As of November 6, 2026
Save $923 AUD (74%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,678 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 LG803613582 or 803613582. Listed at 18 retailers as of November 5, 2026, with a 288% 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803613582
Dimensions7.32 × 7.27 × 4.57 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
7.32 mm7.27 mm1.50 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803613582
Side View
Table 58.0%Crown 33.1°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 62.7%

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 6
Current: $1,678 AUD|Low: $320 AUD|High: $1,685 AUD|Avg: $836 AUD|+11.9%
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
November 6, 2026
Retailer 10$320 AUD
Retailer 3$401 AUD
Retailer 2$579 AUD
Retailer 11$616 AUD
Retailer 12$620 AUD
Retailer 9$641 AUD
Retailer 7$647 AUD
Retailer 5$724 AUD
Retailer 13$777 AUD
Retailer 4$1,100 AUD
Retailer 8$1,143 AUD
Retailer 14$1,154 AUD
Retailer 6$1,243 AUD
MOH London$1,678 AUD

43 data points across 14 retailers

18 retailers$320 AUD to $1,243 AUD

Retailer 1
-
$296 AUD
Price last confirmed 27 days ago
A
Retailer 2
-
$320 AUD
View
Final sale: no returns
Retailer 3
-
$343 AUD
View
Price last confirmed 24 days ago
Retailer 4
-
$367 AUD
View
Price last confirmed 35 days ago
A
Retailer 5
-
$401 AUD
View
A
Retailer 6
-
$579 AUD
View
B+
Retailer 7
-
$616 AUD
View
A
Retailer 8
-
$620 AUD
View
A
Retailer 9
-
$641 AUD
View
A
Retailer 10
-
$647 AUD
View
Retailer 11
-
$724 AUD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$777 AUD
View
Retailer 13
-
$1,100 AUD
View
Price last confirmed 12 days ago
B
Retailer 14
-
$1,143 AUD
View
B+
Retailer 15
-
$1,154 AUD
View
Retailer 16
-
$1,179 AUD
View
Price last confirmed 30 days ago
B
Retailer 17
-
$1,243 AUD
View
Most Expensive
MOH London
LG803613582 · Oct 26
$1,678 AUD
£925 GBP
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from $320 AUDSave up to $923 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
$320 AUD