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Round|Lab Grown|IGI

1.81ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG500165523

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500165523

Diamond specifications and retailer prices

From €999 EUR
As of November 5, 2026
Save €2,714 EUR (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €3,712 EUR at MOH London · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500165523 or 500165523. Listed at 10 retailers as of November 5, 2026, with prices from €999 to €3,712, a €2,714 spread on the same certified stone. MOH London lists it at €3,712. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500165523
Dimensions7.87 × 7.84 × 4.77 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.87 mm7.84 mm1.81 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500165523
Side View
Table 60.5%Crown 33.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.7%

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 5
Current: €3,712 EUR|Low: €959 EUR|High: €3,768 EUR|Avg: €1,878 EUR|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5€999 EUR
Retailer 6€1,159 EUR
Retailer 8€1,159 EUR
Retailer 2€1,268 EUR
Retailer 4€1,314 EUR
Retailer 10€1,667 EUR
Retailer 3€1,718 EUR
Retailer 7€1,842 EUR
Retailer 9€2,350 EUR
Retailer 11€3,316 EUR
MOH London€3,712 EUR

38 data points across 11 retailers

10 retailers€999 EUR to €3,712 EUR

A
Cheapest Retailer
-
€999 EUR
A
Retailer 2
-
€1,087 EUR
View
Retailer 3
-
€1,159 EUR
View
Price last confirmed 25 days ago
A
Retailer 4
-
€1,159 EUR
View
A
Retailer 5
-
€1,268 EUR
View
B+
Retailer 6
-
€1,314 EUR
View
B
Retailer 7
-
€1,842 EUR
View
B
Retailer 8
-
€2,172 EUR
View
B
Retailer 9
-
€2,350 EUR
View
Most Expensive
B
MOH London
LG500165523 · Nov 5
€3,712 EUR
£3,281 GBP
View
9 more retailers have this diamond
Prices start from €999 EURSave up to €2,714 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
€999 EUR