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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 €1,070 EUR
$1,200 USD
As of November 2, 2026
Save €4,015 EUR (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €5,085 EUR at MOH London · As of November 1, 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 November 1, 2026, with prices from €1,070 to €5,085, a €4,015 spread on the same certified stone. MOH London lists it at €5,085. 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
Colour
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: Nov 2
Current: €5,085 EUR|Low: €1,070 EUR|High: €5,153 EUR|Avg: €2,581 EUR
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 1, 2026
Retailer 7€1,070 EUR
Retailer 6€1,535 EUR
Retailer 11€1,670 EUR
Retailer 12€1,719 EUR
Retailer 8€1,780 EUR
Retailer 5€1,814 EUR
Retailer 13€1,930 EUR
Retailer 3€2,382 EUR
Retailer 9€2,795 EUR
Retailer 2€3,070 EUR
Retailer 10€3,337 EUR
MOH London€5,085 EUR
Retailer 4€5,098 EUR

18 data points across 13 retailers

11 retailers€1,070 EUR to €5,085 EUR

A
Cheapest Retailer
-
€1,070 EUR
$1,200 USD
B+
Retailer 2
-
€1,535 EUR
$1,722 USD
View
B+
Retailer 3
-
€1,670 EUR
$1,873 USD
View
B+
Retailer 4
-
€1,719 EUR
$1,928 USD
View
Final sale: no returns
Retailer 5
-
€1,780 EUR
$1,997 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
€1,780 EUR
$1,997 USD
View
B+
Retailer 7
-
€1,930 EUR
$2,165 USD
View
B
Retailer 8
-
€2,795 EUR
$3,135 USD
View
B
Retailer 9
-
€3,070 EUR
$3,443 USD
View
B
Retailer 10
-
€3,337 EUR
$3,743 USD
View
Most Expensive
B
MOH London
LG523263333 · Nov 1
€5,085 EUR
£4,491 GBP
View
10 more retailers have this diamond
Prices start from €1,070 EURSave up to €4,015 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
€1,070 EUR