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Round|Lab Grown|IGI

1.50ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG494162245

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494162245

Diamond specifications and retailer prices

From €739 EUR
As of November 5, 2026
Save €3,780 EUR (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €4,519 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494162245 or 494162245. Listed at 12 retailers as of November 5, 2026, with prices from €739 to €4,519, a €3,780 spread on the same certified stone. MOH London lists it at €4,519. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494162245
Dimensions7.28 × 7.33 × 4.55 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
7.28 mm7.33 mm1.50 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494162245
Side View
Table 55.5%Crown 36°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.3%

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: Nov 5
Current: €4,519 EUR|Low: €739 EUR|High: €4,593 EUR|Avg: €1,975 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
November 6, 2026
Retailer 6€739 EUR
Retailer 7€1,216 EUR
Retailer 10€1,323 EUR
Retailer 12€1,360 EUR
Retailer 8€1,410 EUR
Retailer 13€1,410 EUR
Retailer 3€1,564 EUR
Retailer 4€1,931 EUR
Retailer 9€2,229 EUR
Retailer 2€2,537 EUR
Retailer 5€2,629 EUR
Retailer 11€2,643 EUR
MOH London€4,519 EUR

39 data points across 13 retailers

12 retailers€739 EUR to €4,519 EUR

A
Cheapest Retailer
-
€739 EUR
B+
Retailer 2
-
€1,216 EUR
View
B+
Retailer 3
-
€1,323 EUR
View
B+
Retailer 4
-
€1,360 EUR
View
Final sale: no returns
B+
Retailer 5
-
€1,410 EUR
View
Retailer 6
-
€1,410 EUR
View
Price last confirmed 25 days ago
B+
Retailer 7
-
€1,564 EUR
View
B
Retailer 8
-
€2,229 EUR
View
B
Retailer 9
-
€2,537 EUR
View
B
Retailer 10
-
€2,629 EUR
View
B
Retailer 11
-
€2,643 EUR
View
Most Expensive
B
MOH London
LG494162245 · Nov 5
€4,519 EUR
£3,994 GBP
View
11 more retailers have this diamond
Prices start from €739 EURSave up to €3,780 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