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Round|Lab Grown|IGI

1.26ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG720547128

Shape and cutting style on the report: Round brilliant

Certificate IGI LG720547128

Diamond specifications and retailer prices

From $230 AUD
As of November 5, 2026
Save $1,102 AUD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,332 AUD at MOH London · As of November 4, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG720547128 or 720547128. Listed at 19 retailers as of November 4, 2026, with prices from $230 to $1,332, a $1,102 spread on the same certified stone. MOH London lists it at $1,332. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720547128
Dimensions7.07 × 7.03 × 4.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.07 mm7.03 mm1.26 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720547128
Side View
Table 59.0%Crown 34°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 59.7%

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: $1,332 AUD|Low: $221 AUD|High: $1,357 AUD|Avg: $613 AUD|-0.3%
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 8$230 AUD
Retailer 3$286 AUD
Retailer 9$286 AUD
Retailer 4$494 AUD
Retailer 2$496 AUD
Retailer 10$517 AUD
Retailer 6$600 AUD
Retailer 11$646 AUD
Retailer 7$750 AUD
Retailer 5$814 AUD
MOH London$1,332 AUD

44 data points across 11 retailers

19 retailers$230 AUD to $1,332 AUD

A
Cheapest Retailer
-
$230 AUD
A
Retailer 2
-
$267 AUD
View
Retailer 3
-
$286 AUD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$286 AUD
View
A
Retailer 5
-
$494 AUD
View
A
Retailer 6
-
$496 AUD
View
B+
Retailer 7
-
$517 AUD
View
A
Retailer 8
-
$600 AUD
View
B+
Retailer 9
-
$627 AUD
View
B+
Retailer 10
-
$646 AUD
View
B+
Retailer 11
-
$671 AUD
View
Retailer 12
-
$686 AUD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$750 AUD
View
B+
Retailer 14
-
$814 AUD
View
B+
Retailer 15
-
$814 AUD
View
B+
Retailer 16
-
$841 AUD
View
B+
Retailer 17
-
$919 AUD
View
B
Retailer 18
-
$996 AUD
View
Most Expensive
B
MOH London
LG720547128 · Nov 4
$1,332 AUD
£734 GBP
View
18 more retailers have this diamond
Prices start from $230 AUDSave up to $1,102 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
$230 AUD