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Round|Lab Grown|IGI

1.50ct H SI1 Round Lab Grown Diamond

GD • H/SI1 • IGI LG425067155

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425067155

Diamond specifications and retailer prices

From €1,158 EUR
As of November 5, 2026
Save €3,522 EUR (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,680 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG425067155 or 425067155. Listed at 11 retailers as of November 5, 2026, with prices from €1,158 to €4,680, a €3,522 spread on the same certified stone. MOH London lists it at €4,680. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
H
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceNone
Crown angle33.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067155
Dimensions7.36 × 7.30 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) process Type IIa
Top View
7.36 mm7.30 mm1.50 ctH / SI1
OriginLab Grown
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI LG425067155
Side View
Table 53.0%Crown 33.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €4,680 EUR|Low: €1,158 EUR|High: €4,756 EUR|Avg: €2,183 EUR|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 4€1,158 EUR
Retailer 3€1,417 EUR
Retailer 7€1,585 EUR
Retailer 5€1,643 EUR
Retailer 10€1,714 EUR
Retailer 8€1,795 EUR
Retailer 9€2,208 EUR
Retailer 6€2,586 EUR
Retailer 2€2,905 EUR
MOH London€4,680 EUR

14 data points across 10 retailers

11 retailers€1,158 EUR to €4,680 EUR

B+
Cheapest Retailer
-
€1,158 EUR
B
Retailer 2
-
€1,417 EUR
View
B
Retailer 3
-
€1,541 EUR
View
B
Retailer 4
-
€1,585 EUR
View
Final sale: no returns
Retailer 5
-
€1,643 EUR
View
Price last confirmed 25 days ago
B
Retailer 6
-
€1,643 EUR
View
B
Retailer 7
-
€1,795 EUR
View
C
Retailer 8
-
€2,586 EUR
View
C
Retailer 9
-
€2,905 EUR
View
C
Retailer 10
-
€3,080 EUR
View
Most Expensive
C
MOH London
LG425067155 · Nov 5
€4,680 EUR
£4,136 GBP
View
10 more retailers have this diamond
Prices start from €1,158 EURSave up to €3,522 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.

B+
1.50ct Round
€1,158 EUR