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Round|Lab Grown|IGI

1.50ct J SI1 Round Lab Grown Diamond

VG • J/SI1 • IGI LG480150373

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480150373

Diamond specifications and retailer prices

From $1,214 AUD
As of November 5, 2026
Save $4,967 AUD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,181 AUD at MOH London · As of November 3, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG480150373 or 480150373. Listed at 11 retailers as of November 3, 2026, with prices from $1,214 to $6,181, a $4,967 spread on the same certified stone. MOH London lists it at $6,181. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480150373
Dimensions7.36 × 7.30 × 4.41 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.36 mm7.30 mm1.50 ctJ / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG480150373
Side View
Table 62.0%Crown 34.4°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 60.1%

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: $6,181 AUD|Low: $1,214 AUD|High: $6,264 AUD|Avg: $2,700 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2$1,214 AUD
Retailer 4$1,658 AUD
Retailer 8$1,857 AUD
Retailer 5$1,924 AUD
Retailer 7$1,924 AUD
Retailer 3$2,100 AUD
Retailer 9$2,171 AUD
Retailer 10$2,736 AUD
Retailer 6$3,056 AUD
Retailer 11$3,791 AUD
MOH London$6,181 AUD

15 data points across 11 retailers

11 retailers$1,214 AUD to $6,181 AUD

A
Cheapest Retailer
-
$1,214 AUD
B+
Retailer 2
-
$1,658 AUD
View
B+
Retailer 3
-
$1,804 AUD
View
B+
Retailer 4
-
$1,857 AUD
View
Final sale: no returns
B+
Retailer 5
-
$1,924 AUD
View
Retailer 6
-
$1,924 AUD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$2,171 AUD
View
B
Retailer 8
-
$3,056 AUD
View
B
Retailer 9
-
$3,607 AUD
View
B
Retailer 10
-
$3,791 AUD
View
Most Expensive
C
MOH London
LG480150373 · Nov 3
$6,181 AUD
£3,407 GBP
View
10 more retailers have this diamond
Prices start from $1,214 AUDSave up to $4,967 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
$1,214 AUD