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Round|Lab Grown|IGI

1.50ct J SI2 Round Lab Grown Diamond

VG • J/SI2 • IGI LG485136732

Shape and cutting style on the report: Round brilliant

Certificate IGI LG485136732

Diamond specifications and retailer prices

From $1,186 AUD
As of November 5, 2026
Save $2,444 AUD (67%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,922 AUD at MOH London · As of October 29, 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG485136732 or 485136732. Listed at 11 retailers as of November 5, 2026, with a 206% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485136732
Dimensions7.24 × 7.31 × 4.45 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
7.24 mm7.31 mm1.50 ctJ / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485136732
Side View
Table 59.0%Crown 35.2°Girdle: MED-THKPavilion 40°Culet: NoneDepth 61.1%

Caratlytics Score

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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: $5,922 AUD|Low: $1,186 AUD|High: $5,969 AUD|Avg: $2,603 AUD|+0.5%
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 6$1,186 AUD
Retailer 7$1,497 AUD
Retailer 11$1,628 AUD
Retailer 13$1,676 AUD
Retailer 8$1,737 AUD
Retailer 10$1,737 AUD
Retailer 2$2,003 AUD
Retailer 3$2,508 AUD
Retailer 9$2,770 AUD
Retailer 12$3,256 AUD
Retailer 4$3,630 AUD
Retailer 5$3,883 AUD
MOH London$5,922 AUD

39 data points across 13 retailers

11 retailers$1,186 AUD to $3,630 AUD

A
Cheapest Retailer
-
$1,186 AUD
B+
Retailer 2
-
$1,497 AUD
View
B+
Retailer 3
-
$1,628 AUD
View
B+
Retailer 4
-
$1,676 AUD
View
Final sale: no returns
B+
Retailer 5
-
$1,737 AUD
View
Retailer 6
-
$1,737 AUD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$2,003 AUD
View
B
Retailer 8
-
$2,770 AUD
View
B
Retailer 9
-
$3,256 AUD
View
B
Retailer 10
-
$3,630 AUD
View
Most Expensive
MOH London
LG485136732 · Oct 29
$5,922 AUD
£3,264 GBP
View
Price last confirmed 8 days ago
10 more retailers have this diamond
Prices start from $1,186 AUDSave up to $2,444 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
$1,186 AUD