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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 $991 AUD
As of November 5, 2026
Save $3,522 AUD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,514 AUD at MOH London · As of November 3, 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 November 3, 2026, with prices from $991 to $4,514, a $3,522 spread on the same certified stone. MOH London lists it at $4,514. 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
Colour
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 5
Current: $4,514 AUD|Low: $951 AUD|High: $4,568 AUD|Avg: $2,036 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 5$991 AUD
Retailer 2$1,014 AUD
Retailer 8$1,079 AUD
Retailer 10$1,109 AUD
Retailer 6$1,150 AUD
Retailer 11$1,834 AUD
Retailer 7$1,868 AUD
Retailer 3$2,573 AUD
Retailer 4$2,831 AUD
Retailer 9$3,231 AUD
MOH London$4,514 AUD

13 data points across 11 retailers

10 retailers$991 AUD to $4,514 AUD

A
Cheapest Retailer
-
$991 AUD
A
Retailer 2
-
$1,014 AUD
View
A
Retailer 3
-
$1,079 AUD
View
A
Retailer 4
-
$1,109 AUD
View
Final sale: no returns
A
Retailer 5
-
$1,150 AUD
View
Retailer 6
-
$1,150 AUD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
$1,868 AUD
View
B
Retailer 8
-
$2,831 AUD
View
B
Retailer 9
-
$3,231 AUD
View
Most Expensive
B
MOH London
LG496135571 · Nov 3
$4,514 AUD
£2,488 GBP
View
9 more retailers have this diamond
Prices start from $991 AUDSave up to $3,522 AUD

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
$991 AUD