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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 €302 EUR
$337 USD
As of November 1, 2026
Save €1,039 EUR (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,340 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 €302 to €1,340, a €1,039 spread on the same certified stone. MOH London lists it at €1,340. 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
Color
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: €1,340 EUR|Low: €216 EUR|High: €1,356 EUR|Avg: €689 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8€302 EUR
Retailer 7€335 EUR
Retailer 5€506 EUR
Retailer 6€547 EUR
Retailer 2€594 EUR
Retailer 10€613 EUR
Retailer 9€644 EUR
Retailer 4€1,028 EUR
Retailer 3€1,038 EUR
MOH London€1,340 EUR

41 data points across 10 retailers

13 retailers€302 EUR to €1,340 EUR

Retailer 1
-
€259 EUR
$289 USD
Price last confirmed 30 days ago
A
Retailer 2
-
€302 EUR
$337 USD
View
Final sale: no returns
Retailer 3
-
€313 EUR
$350 USD
View
Price last confirmed 35 days ago
Retailer 4
-
€335 EUR
$374 USD
View
Price last confirmed 29 days ago
A
Retailer 5
-
€506 EUR
$565 USD
View
B+
Retailer 6
-
€547 EUR
$611 USD
View
A
Retailer 7
-
€594 EUR
£522 GBP
View
B+
Retailer 8
-
€613 EUR
$685 USD
View
B+
Retailer 9
-
€644 EUR
$720 USD
View
B
Retailer 10
-
€1,028 EUR
$1,148 USD
View
B
Retailer 11
-
€1,038 EUR
$1,160 USD
View
Retailer 12
-
€1,075 EUR
$1,201 USD
View
Price last confirmed 32 days ago
Most Expensive
B
MOH London
LG533209306 · Nov 1
€1,340 EUR
£1,179 GBP
View
12 more retailers have this diamond
Prices start from €302 EURSave up to €1,039 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
€302 EUR