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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 $286 NZD
As of November 5, 2026
Save $1,372 NZD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,658 NZD 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 $286 to $1,658, a $1,372 spread on the same certified stone. MOH London lists it at $1,658. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,658 NZD|Low: $276 NZD|High: $1,690 NZD|Avg: $764 NZD|-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$286 NZD
Retailer 3$356 NZD
Retailer 9$356 NZD
Retailer 4$615 NZD
Retailer 2$617 NZD
Retailer 10$644 NZD
Retailer 6$747 NZD
Retailer 11$804 NZD
Retailer 7$934 NZD
Retailer 5$1,014 NZD
MOH London$1,658 NZD

44 data points across 11 retailers

19 retailers$286 NZD to $1,658 NZD

A
Cheapest Retailer
-
$286 NZD
A
Retailer 2
-
$333 NZD
View
Retailer 3
-
$356 NZD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$356 NZD
View
A
Retailer 5
-
$615 NZD
View
A
Retailer 6
-
$617 NZD
View
B+
Retailer 7
-
$644 NZD
View
A
Retailer 8
-
$747 NZD
View
B+
Retailer 9
-
$781 NZD
View
B+
Retailer 10
-
$804 NZD
View
B+
Retailer 11
-
$836 NZD
View
Retailer 12
-
$854 NZD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$934 NZD
View
B+
Retailer 14
-
$1,014 NZD
View
B+
Retailer 15
-
$1,014 NZD
View
B+
Retailer 16
-
$1,048 NZD
View
B+
Retailer 17
-
$1,144 NZD
View
B
Retailer 18
-
$1,240 NZD
View
Most Expensive
B
MOH London
LG720547128 · Nov 4
$1,658 NZD
£734 GBP
View
18 more retailers have this diamond
Prices start from $286 NZDSave up to $1,372 NZD

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
$286 NZD