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Round|Lab Grown|IGI

1.50ct H SI2 Round Lab Grown Diamond

EX • H/SI2 • IGI LG436047670

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436047670

Diamond specifications and retailer prices

From $860 USD
As of October 30, 2026
Save $4,079 USD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,939 USD 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436047670 or 436047670. Listed at 11 retailers as of October 29, 2026, with prices from $860 to $4,939, a $4,079 spread on the same certified stone. MOH London lists it at $4,939. 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436047670
Dimensions7.42 × 7.47 × 4.43 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.42 mm7.47 mm1.50 ctH / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436047670
Side View
Table 57.0%Crown 32.5°GirdlePavilion 40.1°Culet: NoneDepth 59.5%

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: $4,939 USD|Low: $860 USD|High: $4,972 USD|Avg: $2,285 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$860 USD
Retailer 4$1,318 USD
Retailer 7$1,476 USD
Retailer 5$1,529 USD
Retailer 3$1,871 USD
Retailer 8$2,103 USD
Retailer 6$2,419 USD
Retailer 9$2,850 USD
Retailer 10$3,424 USD
MOH London$4,939 USD

43 data points across 10 retailers

11 retailers$860 USD to $4,939 USD

A
Cheapest Retailer
-
$860 USD
B+
Retailer 2
-
$1,318 USD
View
B+
Retailer 3
-
$1,434 USD
View
B+
Retailer 4
-
$1,476 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,529 USD
View
Retailer 6
-
$1,529 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$1,871 USD
£1,473 GBP
View
B
Retailer 8
-
$2,419 USD
View
B
Retailer 9
-
$2,850 USD
View
B
Retailer 10
-
$2,866 USD
View
Most Expensive
B
MOH London
LG436047670 · Oct 29
$4,939 USD
£3,889 GBP
View
10 more retailers have this diamond
Prices start from $860 USDSave up to $4,079 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
$860 USD