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Round|Lab Grown|IGI

1.31ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG496135573

Shape and cutting style on the report: Round brilliant

Certificate IGI LG496135573

Diamond specifications and retailer prices

From €589 EUR
As of November 5, 2026
Save €2,289 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €2,877 EUR at MOH London · As of November 3, 2026
View at MOH London

About this 1.31ct lab-grown round diamond

This 1.31ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496135573 or 496135573. Listed at 10 retailers as of November 3, 2026, with prices from €589 to €2,877, a €2,289 spread on the same certified stone. MOH London lists it at €2,877. 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

1.31
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496135573
Dimensions7.07 × 7.12 × 4.30 mm
L/W Ratio1.01
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
7.07 mm7.12 mm1.31 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496135573
Side View
Table 56.0%Crown 33°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 60.5%

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: Nov 5
Current: €2,877 EUR|Low: €565 EUR|High: €2,911 EUR|Avg: €1,190 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 4€589 EUR
Retailer 7€658 EUR
Retailer 2€677 EUR
Retailer 5€683 EUR
Retailer 8€683 EUR
Retailer 9€1,104 EUR
Retailer 6€1,115 EUR
Retailer 10€1,528 EUR
Retailer 3€1,744 EUR
MOH London€2,877 EUR

13 data points across 10 retailers

10 retailers€589 EUR to €2,877 EUR

A
Cheapest Retailer
-
€589 EUR
A
Retailer 2
-
€641 EUR
View
A
Retailer 3
-
€658 EUR
View
Final sale: no returns
A
Retailer 4
-
€677 EUR
View
A
Retailer 5
-
€683 EUR
View
Retailer 6
-
€683 EUR
View
Price last confirmed 21 days ago
B+
Retailer 7
-
€1,115 EUR
View
B
Retailer 8
-
€1,744 EUR
View
B
Retailer 9
-
€1,920 EUR
View
Most Expensive
B
MOH London
LG496135573 · Nov 3
€2,877 EUR
£2,543 GBP
View
9 more retailers have this diamond
Prices start from €589 EURSave up to €2,289 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
1.31ct Round
€589 EUR