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Round|Lab Grown|IGI

1.50ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG499189131

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499189131

Diamond specifications and retailer prices

From €739 EUR
As of November 5, 2026
Save €3,337 EUR (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,077 EUR 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499189131 or 499189131. Listed at 10 retailers as of November 3, 2026, with prices from €739 to €4,077, a €3,337 spread on the same certified stone. MOH London lists it at €4,077. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499189131
Dimensions7.29 × 7.24 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.29 mm7.24 mm1.50 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499189131
Side View
Table 56.5%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.2%

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: €4,077 EUR|Low: €739 EUR|High: €4,131 EUR|Avg: €1,885 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2€739 EUR
Retailer 5€1,094 EUR
Retailer 8€1,190 EUR
Retailer 10€1,224 EUR
Retailer 6€1,269 EUR
Retailer 3€1,374 EUR
Retailer 11€1,789 EUR
Retailer 7€2,011 EUR
Retailer 9€2,378 EUR
Retailer 12€2,431 EUR
Retailer 4€2,840 EUR
MOH London€4,077 EUR

14 data points across 12 retailers

10 retailers€739 EUR to €4,077 EUR

A
Cheapest Retailer
-
€739 EUR
B+
Retailer 2
-
€1,094 EUR
View
B+
Retailer 3
-
€1,190 EUR
View
B+
Retailer 4
-
€1,224 EUR
View
Final sale: no returns
Retailer 5
-
€1,269 EUR
View
Price last confirmed 25 days ago
B+
Retailer 6
-
€1,269 EUR
View
B
Retailer 7
-
€2,011 EUR
View
B
Retailer 8
-
€2,378 EUR
View
B
Retailer 9
-
€2,431 EUR
View
Most Expensive
B
MOH London
LG499189131 · Nov 3
€4,077 EUR
£3,603 GBP
View
9 more retailers have this diamond
Prices start from €739 EURSave up to €3,337 EUR

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
€739 EUR