CaratHunter
Plans
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 $830 USD
As of October 30, 2026
Save $3,299 USD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,129 USD at MOH London · As of October 27, 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 October 27, 2026, with prices from $830 to $4,129, a $3,299 spread on the same certified stone. MOH London lists it at $4,129. 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
Color
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

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: Oct 30
Current: $4,129 USD|Low: $830 USD|High: $4,178 USD|Avg: $1,818 USD|+0.1%
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
October 30, 2026
Retailer 2$830 USD
Retailer 7$1,048 USD
Retailer 11$1,140 USD
Retailer 13$1,173 USD
Retailer 8$1,216 USD
Retailer 10$1,216 USD
Retailer 6$1,415 USD
Retailer 3$1,756 USD
Retailer 9$1,939 USD
Retailer 12$2,279 USD
Retailer 4$2,541 USD
Retailer 5$2,719 USD
MOH London$4,129 USD

42 data points across 13 retailers

11 retailers$830 USD to $4,129 USD

A
Cheapest Retailer
-
$830 USD
B+
Retailer 2
-
$1,048 USD
View
B+
Retailer 3
-
$1,140 USD
View
B+
Retailer 4
-
$1,173 USD
View
Final sale: no returns
Retailer 5
-
$1,216 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,216 USD
View
B+
Retailer 7
-
$1,415 USD
£1,114 GBP
View
B
Retailer 8
-
$1,939 USD
View
B
Retailer 9
-
$2,279 USD
View
B
Retailer 10
-
$2,541 USD
View
Most Expensive
B
MOH London
LG407932651 · Oct 27
$4,129 USD
£3,251 GBP
View
10 more retailers have this diamond
Prices start from $830 USDSave up to $3,299 USD

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
$830 USD