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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 €301 EUR
$335 USD
As of October 29, 2026
Save €1,316 EUR (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,617 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 €301 to €1,617, a €1,316 spread on the same certified stone. MOH London lists it at €1,617. 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
Colour
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: €1,617 EUR|Low: €301 EUR|High: €1,617 EUR|Avg: €827 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
October 29, 2026
Retailer 12€301 EUR
Retailer 10€349 EUR
Retailer 9€373 EUR
Retailer 14€373 EUR
Retailer 6€483 EUR
Retailer 8€645 EUR
Retailer 11€681 EUR
Retailer 2€739 EUR
Retailer 5€773 EUR
Retailer 3€782 EUR
Retailer 7€824 EUR
Retailer 15€1,093 EUR
Retailer 13€1,323 EUR
Retailer 4€1,353 EUR
MOH London€1,617 EUR

13 data points across 15 retailers

16 retailers€301 EUR to €1,617 EUR

A
Cheapest Retailer
-
€301 EUR
$335 USD
A
Retailer 2
-
€349 EUR
$388 USD
View
A
Retailer 3
-
€373 EUR
$415 USD
View
A
Retailer 4
-
€373 EUR
$415 USD
View
B+
Retailer 5
-
€483 EUR
$538 USD
View
B+
Retailer 6
-
€645 EUR
£566 GBP
View
B+
Retailer 7
-
€681 EUR
$758 USD
View
B+
Retailer 8
-
€739 EUR
£648 GBP
View
B+
Retailer 9
-
€773 EUR
$860 USD
View
B
Retailer 10
-
€782 EUR
$870 USD
View
B+
Retailer 11
-
€824 EUR
$917 USD
View
B
Retailer 12
-
€1,093 EUR
$1,217 USD
View
B
Retailer 13
-
€1,323 EUR
$1,473 USD
View
B
Retailer 14
-
€1,353 EUR
$1,506 USD
View
B
Retailer 15
-
€1,384 EUR
$1,540 USD
View
Most Expensive
B
MOH London
LG515227591 · Oct 29
€1,617 EUR
£1,417 GBP
View
15 more retailers have this diamond
Prices start from €301 EURSave up to €1,316 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
€301 EUR