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Round|Lab Grown|IGI

1.50ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG407932651

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407932651

Diamond specifications and retailer prices

From $1,186 AUD
As of November 5, 2026
Save $4,689 AUD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,874 AUD at MOH London · As of November 5, 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 top-tier cut grade and certified by IGI LG407932651 or 407932651. Listed at 11 retailers as of November 5, 2026, with prices from $1,186 to $5,874, a $4,689 spread on the same certified stone. MOH London lists it at $5,874. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407932651
Dimensions7.32 × 7.36 × 4.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.32 mm7.36 mm1.50 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407932651
Side View
Table 53.0%Crown 32°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.2%

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: $5,874 AUD|Low: $1,186 AUD|High: $5,969 AUD|Avg: $2,604 AUD|-0.3%
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$5,874 AUD

43 data points across 13 retailers

11 retailers$1,186 AUD to $5,874 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
Retailer 5
-
$1,737 AUD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$1,737 AUD
View
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
B
MOH London
LG407932651 · Nov 5
$5,874 AUD
£3,238 GBP
View
10 more retailers have this diamond
Prices start from $1,186 AUDSave up to $4,689 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