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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 $850 USD
As of November 5, 2026
Save $3,477 USD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,327 USD 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 $850 to $4,327, a $3,477 spread on the same certified stone. MOH London lists it at $4,327. 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
Color
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: $4,327 USD|Low: $850 USD|High: $4,385 USD|Avg: $1,890 USD
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$850 USD
Retailer 4$1,161 USD
Retailer 8$1,300 USD
Retailer 5$1,347 USD
Retailer 7$1,347 USD
Retailer 3$1,470 USD
Retailer 9$1,520 USD
Retailer 10$1,915 USD
Retailer 6$2,139 USD
Retailer 11$2,654 USD
MOH London$4,327 USD

15 data points across 11 retailers

11 retailers$850 USD to $4,327 USD

A
Cheapest Retailer
-
$850 USD
B+
Retailer 2
-
$1,161 USD
View
B+
Retailer 3
-
$1,263 USD
View
B+
Retailer 4
-
$1,300 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,347 USD
View
Retailer 6
-
$1,347 USD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$1,520 USD
View
B
Retailer 8
-
$2,139 USD
View
B
Retailer 9
-
$2,525 USD
View
B
Retailer 10
-
$2,654 USD
View
Most Expensive
C
MOH London
LG480150373 · Nov 3
$4,327 USD
£3,407 GBP
View
10 more retailers have this diamond
Prices start from $850 USDSave up to $3,477 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
$850 USD