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Round|Lab Grown|IGI

1.81ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG436046555

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436046555

Diamond specifications and retailer prices

From €895 EUR
$1,000 USD
As of October 30, 2026
Save €3,504 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,399 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436046555 or 436046555. Listed at 10 retailers as of October 29, 2026, with prices from €895 to €4,399, a €3,504 spread on the same certified stone. MOH London lists it at €4,399. 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
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046555
Dimensions7.84 × 7.81 × 4.84 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.84 mm7.81 mm1.81 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436046555
Side View
Table 55.5%Crown 32.9°Girdle: ThickPavilion 41.1°Culet: NoneDepth 61.8%

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: Oct 30
Current: €4,399 EUR|Low: €895 EUR|High: €4,435 EUR|Avg: €2,184 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2€895 EUR
Retailer 5€1,321 EUR
Retailer 8€1,437 EUR
Retailer 10€1,479 EUR
Retailer 6€1,532 EUR
Retailer 3€1,694 EUR
Retailer 12€2,088 EUR
Retailer 7€2,416 EUR
Retailer 11€2,781 EUR
Retailer 9€2,871 EUR
Retailer 4€3,430 EUR
MOH London€4,399 EUR

14 data points across 12 retailers

10 retailers€895 EUR to €4,399 EUR

A
Cheapest Retailer
-
€895 EUR
$1,000 USD
B+
Retailer 2
-
€1,321 EUR
$1,476 USD
View
B+
Retailer 3
-
€1,437 EUR
$1,605 USD
View
B+
Retailer 4
-
€1,479 EUR
$1,652 USD
View
Final sale: no returns
B+
Retailer 5
-
€1,532 EUR
$1,712 USD
View
Retailer 6
-
€1,532 EUR
$1,712 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
€2,416 EUR
$2,699 USD
View
B
Retailer 8
-
€2,781 EUR
$3,107 USD
View
B
Retailer 9
-
€2,871 EUR
$3,208 USD
View
Most Expensive
B
MOH London
LG436046555 · Oct 29
€4,399 EUR
£3,870 GBP
View
9 more retailers have this diamond
Prices start from €895 EURSave up to €3,504 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
€895 EUR