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Round|Lab Grown|IGI

1.81ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG515227591

Shape and cutting style on the report: Round brilliant

Certificate IGI LG515227591

Diamond specifications and retailer prices

From €300 EUR
$335 USD
As of October 29, 2026
Save €1,311 EUR (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,611 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.81ct lab-grown round diamond

This 1.81ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG515227591 or 515227591. Listed at 16 retailers as of October 29, 2026, with prices from €300 to €1,611, a €1,311 spread on the same certified stone. MOH London lists it at €1,611. 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
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515227591
Dimensions7.80 × 7.83 × 4.85 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.80 mm7.83 mm1.81 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515227591
Side View
Table 57.5%Crown 35.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.0%

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: Oct 29
Current: €1,611 EUR|Low: €300 EUR|High: €1,611 EUR|Avg: €815 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
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 15€300 EUR
Retailer 13€347 EUR
Retailer 3€371 EUR
Retailer 12€371 EUR
Retailer 11€430 EUR
Retailer 2€639 EUR
Retailer 14€678 EUR
Retailer 9€739 EUR
Retailer 7€770 EUR
Retailer 5€779 EUR
Retailer 8€821 EUR
Retailer 10€967 EUR
Retailer 4€1,089 EUR
Retailer 16€1,318 EUR
Retailer 6€1,348 EUR
MOH London€1,611 EUR

16 data points across 16 retailers

16 retailers€300 EUR to €1,611 EUR

A
Cheapest Retailer
-
€300 EUR
$335 USD
A
Retailer 2
-
€347 EUR
$388 USD
View
A
Retailer 3
-
€371 EUR
$415 USD
View
A
Retailer 4
-
€371 EUR
$415 USD
View
B+
Retailer 5
-
€430 EUR
$480 USD
View
B+
Retailer 6
-
€639 EUR
£562 GBP
View
B+
Retailer 7
-
€678 EUR
$758 USD
View
B+
Retailer 8
-
€739 EUR
£650 GBP
View
B+
Retailer 9
-
€770 EUR
$860 USD
View
Retailer 10
-
€779 EUR
$870 USD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
€821 EUR
$917 USD
View
B
Retailer 12
-
€967 EUR
$1,080 USD
View
B
Retailer 13
-
€1,089 EUR
$1,217 USD
View
B
Retailer 14
-
€1,318 EUR
$1,473 USD
View
B
Retailer 15
-
€1,348 EUR
$1,506 USD
View
Most Expensive
B
MOH London
LG515227591 · Oct 29
€1,611 EUR
£1,417 GBP
View
15 more retailers have this diamond
Prices start from €300 EURSave up to €1,311 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 Round
€300 EUR