CaratHunter
Plans
Round|Lab Grown|IGI

1.42ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG490177009

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490177009

Diamond specifications and retailer prices

From €636 EUR
$710 USD
As of October 31, 2026
Save €2,650 EUR (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,285 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.42ct lab-grown round diamond

This 1.42ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490177009 or 490177009. Listed at 11 retailers as of October 29, 2026, with prices from €636 to €3,285, a €2,650 spread on the same certified stone. MOH London lists it at €3,285. 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

1.42
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490177009
Dimensions7.21 × 7.17 × 4.46 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
7.21 mm7.17 mm1.42 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490177009
Side View
Table 53.5%Crown 34.4°Girdle: MediumPavilion 40.2°Culet: NoneDepth 62.1%

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: Oct 31
Current: €3,285 EUR|Low: €636 EUR|High: €3,311 EUR|Avg: €1,458 EUR|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 19, 2026
Retailer 4€636 EUR
Retailer 3€831 EUR
Retailer 7€930 EUR
Retailer 5€963 EUR
Retailer 8€1,119 EUR
Retailer 9€1,418 EUR
Retailer 6€1,543 EUR
Retailer 2€2,144 EUR
MOH London€3,285 EUR

10 data points across 9 retailers

11 retailers€636 EUR to €3,285 EUR

A
Cheapest Retailer
-
€636 EUR
$710 USD
A
Retailer 2
-
€831 EUR
$928 USD
View
B+
Retailer 3
-
€904 EUR
$1,010 USD
View
B+
Retailer 4
-
€930 EUR
$1,039 USD
View
Final sale: no returns
B+
Retailer 5
-
€963 EUR
$1,076 USD
View
Retailer 6
-
€963 EUR
$1,076 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
€1,119 EUR
$1,250 USD
View
B
Retailer 8
-
€1,543 EUR
$1,724 USD
View
B
Retailer 9
-
€2,144 EUR
$2,395 USD
View
B
Retailer 10
-
€2,709 EUR
$3,026 USD
View
Most Expensive
B
MOH London
LG490177009 · Oct 29
€3,285 EUR
£2,890 GBP
View
10 more retailers have this diamond
Prices start from €636 EURSave up to €2,650 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
1.42ct Round
€636 EUR