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Radiant|Lab Grown|IGI

1.81ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG523263333

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

Certificate IGI LG523263333

Diamond specifications and retailer prices

From €1,074 EUR
$1,200 USD
As of October 31, 2026
Save €4,058 EUR (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €5,132 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.81ct lab-grown radiant diamond

This 1.81ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG523263333 or 523263333. Listed at 11 retailers as of October 29, 2026, with prices from €1,074 to €5,132, a €4,058 spread on the same certified stone. MOH London lists it at €5,132. 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

1.81
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.6°
Pavilion angle30.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523263333
Dimensions7.78 × 6.06 × 4.08 mm
L/W Ratio1.28
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
7.78 mm6.06 mm1.81 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523263333
Side View
Table 64.5%Crown 45.6°Girdle: ThickPavilion 30.2°Culet: NoneDepth 67.3%

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: Oct 31
Current: €5,132 EUR|Low: €1,074 EUR|High: €5,173 EUR|Avg: €2,592 EUR|+0.5%
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
October 29, 2026
Retailer 7€1,074 EUR
Retailer 6€1,541 EUR
Retailer 11€1,677 EUR
Retailer 12€1,726 EUR
Retailer 8€1,787 EUR
Retailer 5€1,821 EUR
Retailer 13€1,938 EUR
Retailer 3€2,392 EUR
Retailer 9€2,806 EUR
Retailer 2€3,082 EUR
Retailer 10€3,350 EUR
Retailer 4€5,118 EUR
MOH London€5,132 EUR

17 data points across 13 retailers

11 retailers€1,074 EUR to €5,132 EUR

A
Cheapest Retailer
-
€1,074 EUR
$1,200 USD
A
Retailer 2
-
€1,541 EUR
$1,722 USD
View
B+
Retailer 3
-
€1,677 EUR
$1,873 USD
View
B+
Retailer 4
-
€1,726 EUR
$1,928 USD
View
Final sale: no returns
Retailer 5
-
€1,787 EUR
$1,997 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€1,787 EUR
$1,997 USD
View
B+
Retailer 7
-
€1,938 EUR
$2,165 USD
View
B
Retailer 8
-
€2,806 EUR
$3,135 USD
View
B
Retailer 9
-
€3,082 EUR
$3,443 USD
View
B
Retailer 10
-
€3,350 EUR
$3,743 USD
View
Most Expensive
B
MOH London
LG523263333 · Oct 29
€5,132 EUR
£4,515 GBP
View
10 more retailers have this diamond
Prices start from €1,074 EURSave up to €4,058 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
1.81ct Radiant
€1,074 EUR