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1.26ct H SI2 Round Lab Grown Diamond

ID • H/SI2 • IGI LG496135571

Shape and cutting style on the report: Round brilliant

Certificate IGI LG496135571

Diamond specifications and retailer prices

From €621 EUR
$694 USD
As of October 29, 2026
Save €2,210 EUR (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €2,832 EUR at MOH London · As of October 25, 2026
View at MOH London

About this 1.26ct lab-grown round diamond

This 1.26ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496135571 or 496135571. Listed at 10 retailers as of October 25, 2026, with prices from €621 to €2,832, a €2,210 spread on the same certified stone. MOH London lists it at €2,832. 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

1.26
Carat
H
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496135571
Dimensions6.96 × 7.03 × 4.26 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
6.96 mm7.03 mm1.26 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496135571
Side View
Table 55.5%Crown 33.3°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 60.9%

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: €2,832 EUR|Low: €596 EUR|High: €2,862 EUR|Avg: €1,258 EUR|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 5€621 EUR
Retailer 2€636 EUR
Retailer 8€676 EUR
Retailer 10€695 EUR
Retailer 6€721 EUR
Retailer 11€1,149 EUR
Retailer 7€1,171 EUR
Retailer 3€1,612 EUR
Retailer 4€1,774 EUR
Retailer 9€2,025 EUR
MOH London€2,832 EUR

15 data points across 11 retailers

10 retailers€621 EUR to €2,832 EUR

A
Cheapest Retailer
-
€621 EUR
$694 USD
A
Retailer 2
-
€636 EUR
$710 USD
View
A
Retailer 3
-
€676 EUR
$755 USD
View
A
Retailer 4
-
€695 EUR
$776 USD
View
Final sale: no returns
B+
Retailer 5
-
€721 EUR
$805 USD
View
Retailer 6
-
€721 EUR
$805 USD
View
Price last confirmed 15 days ago
B+
Retailer 7
-
€1,171 EUR
$1,308 USD
View
B
Retailer 8
-
€1,774 EUR
$1,982 USD
View
B
Retailer 9
-
€2,025 EUR
$2,262 USD
View
Most Expensive
B
MOH London
LG496135571 · Oct 25
€2,832 EUR
£2,491 GBP
View
9 more retailers have this diamond
Prices start from €621 EURSave up to €2,210 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
1.26ct Round
€621 EUR