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Round|Lab Grown|IGI

1.50ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG492136708

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492136708

Diamond specifications and retailer prices

From €739 EUR
As of November 5, 2026
Save €3,116 EUR (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,855 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492136708 or 492136708. Listed at 11 retailers as of November 3, 2026, with prices from €739 to €3,855, a €3,116 spread on the same certified stone. MOH London lists it at €3,855. 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 angle35.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136708
Dimensions7.30 × 7.24 × 4.56 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
7.30 mm7.24 mm1.50 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492136708
Side View
Table 55.5%Crown 35.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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: €3,855 EUR|Low: €739 EUR|High: €3,907 EUR|Avg: €1,679 EUR
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€739 EUR
Retailer 4€1,034 EUR
Retailer 8€1,158 EUR
Retailer 5€1,200 EUR
Retailer 7€1,200 EUR
Retailer 3€1,310 EUR
Retailer 9€1,354 EUR
Retailer 10€1,706 EUR
Retailer 6€1,906 EUR
Retailer 11€2,365 EUR
MOH London€3,855 EUR

17 data points across 11 retailers

11 retailers€739 EUR to €3,855 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
Retailer 5
-
€1,200 EUR
View
Price last confirmed 25 days ago
B+
Retailer 6
-
€1,200 EUR
View
B+
Retailer 7
-
€1,354 EUR
View
B
Retailer 8
-
€1,906 EUR
View
B
Retailer 9
-
€2,250 EUR
View
B
Retailer 10
-
€2,365 EUR
View
Most Expensive
B
MOH London
LG492136708 · Nov 3
€3,855 EUR
£3,407 GBP
View
10 more retailers have this diamond
Prices start from €739 EURSave up to €3,116 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