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Round|Lab Grown|IGI

1.50ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG492123272

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123272

Diamond specifications and retailer prices

From €739 EUR
As of November 5, 2026
Save €3,105 EUR (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,845 EUR 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492123272 or 492123272. Listed at 12 retailers as of November 5, 2026, with prices from €739 to €3,845, a €3,105 spread on the same certified stone. MOH London lists it at €3,845. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123272
Dimensions7.39 × 7.35 × 4.53 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
7.39 mm7.35 mm1.50 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123272
Side View
Table 52.0%Crown 33.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.5%

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: €3,845 EUR|Low: €739 EUR|High: €3,907 EUR|Avg: €1,781 EUR|-1.3%
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
Retailer 14
November 6, 2026
Retailer 7€739 EUR
Retailer 8€1,034 EUR
Retailer 13€1,125 EUR
Retailer 12€1,158 EUR
Retailer 9€1,200 EUR
Retailer 11€1,200 EUR
Retailer 3€1,354 EUR
Retailer 2€1,562 EUR
Retailer 4€1,706 EUR
Retailer 10€1,906 EUR
Retailer 14€2,250 EUR
Retailer 5€2,365 EUR
Retailer 6€3,434 EUR
MOH London€3,845 EUR

43 data points across 14 retailers

12 retailers€739 EUR to €3,845 EUR

A
Cheapest Retailer
-
€739 EUR
B+
Retailer 2
-
€1,034 EUR
View
B+
Retailer 3
-
€1,125 EUR
View
B+
Retailer 4
-
€1,158 EUR
View
Final sale: no returns
B+
Retailer 5
-
€1,200 EUR
View
Retailer 6
-
€1,200 EUR
View
Price last confirmed 25 days ago
B
Retailer 7
-
€1,354 EUR
View
B+
Retailer 8
-
€1,562 EUR
View
B
Retailer 9
-
€1,906 EUR
View
B
Retailer 10
-
€2,250 EUR
View
B
Retailer 11
-
€2,365 EUR
View
Most Expensive
B
MOH London
LG492123272 · Nov 5
€3,845 EUR
£3,398 GBP
View
11 more retailers have this diamond
Prices start from €739 EURSave up to €3,105 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