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Radiant|Lab Grown|IGI

1.43ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG506195332

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG506195332

Diamond specifications and retailer prices

From €718 EUR
$805 USD
As of November 2, 2026
Save €2,403 EUR (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €3,121 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.43ct lab-grown radiant diamond

This 1.43ct lab-grown radiant 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 LG506195332 or 506195332. Listed at 10 retailers as of November 1, 2026, with prices from €718 to €3,121, a €2,403 spread on the same certified stone. MOH London lists it at €3,121. 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

1.43
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle29.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506195332
Dimensions8.07 × 5.62 × 3.58 mm
L/W Ratio1.44
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
8.07 mm5.62 mm1.43 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG506195332
Side View
Table 65.5%Crown 36.5°Girdle: MediumPavilion 29.1°Culet: NoneDepth 63.7%

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 2
Current: €3,121 EUR|Low: €689 EUR|High: €3,163 EUR|Avg: €1,463 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5€718 EUR
Retailer 9€781 EUR
Retailer 2€820 EUR
Retailer 6€833 EUR
Retailer 3€990 EUR
Retailer 10€1,295 EUR
Retailer 8€1,343 EUR
Retailer 4€1,980 EUR
Retailer 7€2,340 EUR
MOH London€3,121 EUR

24 data points across 10 retailers

10 retailers€718 EUR to €3,121 EUR

A
Cheapest Retailer
-
€718 EUR
$805 USD
B+
Retailer 2
-
€781 EUR
$876 USD
View
A
Retailer 3
-
€820 EUR
$920 USD
View
B+
Retailer 4
-
€833 EUR
$934 USD
View
Retailer 5
-
€833 EUR
$934 USD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
€990 EUR
$1,110 USD
View
B+
Retailer 7
-
€1,343 EUR
$1,506 USD
View
B+
Retailer 8
-
€1,980 EUR
$2,221 USD
View
B+
Retailer 9
-
€2,340 EUR
$2,625 USD
View
Most Expensive
B+
MOH London
LG506195332 · Nov 1
€3,121 EUR
£2,756 GBP
View
9 more retailers have this diamond
Prices start from €718 EURSave up to €2,403 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
1.43ct Radiant
€718 EUR