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Radiant|Lab Grown|IGI

1.81ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG533209306

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

Certificate IGI LG533209306

Diamond specifications and retailer prices

From €300 EUR
$337 USD
As of November 1, 2026
Save €1,035 EUR (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,335 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG533209306 or 533209306. Listed at 13 retailers as of November 1, 2026, with prices from €300 to €1,335, a €1,035 spread on the same certified stone. MOH London lists it at €1,335. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG533209306
Dimensions8.34 × 6.26 × 4.13 mm
L/W Ratio1.33
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
8.34 mm6.26 mm1.81 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG533209306
Side View
Table 64.0%Crown 41.9°Girdle: MediumPavilion 35°Culet: NoneDepth 66.0%

Caratlytics Score

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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 1
Current: €1,335 EUR|Low: €215 EUR|High: €1,351 EUR|Avg: €688 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 8€300 EUR
Retailer 7€333 EUR
Retailer 5€504 EUR
Retailer 6€545 EUR
Retailer 2€587 EUR
Retailer 10€611 EUR
Retailer 9€642 EUR
Retailer 4€1,024 EUR
Retailer 3€1,034 EUR
MOH London€1,335 EUR

41 data points across 10 retailers

13 retailers€300 EUR to €1,335 EUR

Retailer 1
-
€258 EUR
$289 USD
Price last confirmed 31 days ago
A
Retailer 2
-
€300 EUR
$337 USD
View
Final sale: no returns
Retailer 3
-
€312 EUR
$350 USD
View
Price last confirmed 36 days ago
Retailer 4
-
€333 EUR
$374 USD
View
Price last confirmed 30 days ago
A
Retailer 5
-
€504 EUR
$565 USD
View
B+
Retailer 6
-
€545 EUR
$611 USD
View
A
Retailer 7
-
€587 EUR
£518 GBP
View
B+
Retailer 8
-
€611 EUR
$685 USD
View
B+
Retailer 9
-
€642 EUR
$720 USD
View
B
Retailer 10
-
€1,024 EUR
$1,148 USD
View
B
Retailer 11
-
€1,034 EUR
$1,160 USD
View
Retailer 12
-
€1,071 EUR
$1,201 USD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
LG533209306 · Nov 1
€1,335 EUR
£1,179 GBP
View
12 more retailers have this diamond
Prices start from €300 EURSave up to €1,035 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
€300 EUR