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Round|Lab Grown|IGI

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 $694 USD
As of November 1, 2026
Save $1,568 USD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,164 USD 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 31, 2026, with a 226% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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: Nov 1
Current: $3,164 USD|Low: $666 USD|High: $3,198 USD|Avg: $1,405 USD|+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$694 USD
Retailer 2$710 USD
Retailer 8$755 USD
Retailer 10$776 USD
Retailer 6$805 USD
Retailer 11$1,284 USD
Retailer 7$1,308 USD
Retailer 3$1,801 USD
Retailer 4$1,982 USD
Retailer 9$2,262 USD
MOH London$3,164 USD

15 data points across 11 retailers

10 retailers$694 USD to $2,262 USD

A
Cheapest Retailer
-
$694 USD
A
Retailer 2
-
$710 USD
View
A
Retailer 3
-
$755 USD
View
A
Retailer 4
-
$776 USD
View
Final sale: no returns
B+
Retailer 5
-
$805 USD
View
Retailer 6
-
$805 USD
View
Price last confirmed 16 days ago
B+
Retailer 7
-
$1,308 USD
View
B
Retailer 8
-
$1,982 USD
View
B
Retailer 9
-
$2,262 USD
View
Most Expensive
MOH London
LG496135571 · Oct 25
$3,164 USD
£2,491 GBP
View
Price last confirmed 7 days ago
9 more retailers have this diamond
Prices start from $694 USDSave up to $1,568 USD

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
$694 USD