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Round|Lab Grown|IGI

1.25ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG749574687

Shape and cutting style on the report: Round brilliant

Certificate IGI LG749574687

Diamond specifications and retailer prices

From $506 AUD
As of November 6, 2026
Save $858 AUD (63%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,364 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG749574687 or 749574687. Listed at 8 retailers as of November 4, 2026, with prices from $506 to $1,364, a $858 spread on the same certified stone. MOH London lists it at $1,364. 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

1.25
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749574687
Dimensions6.91 × 6.87 × 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
6.91 mm6.87 mm1.25 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749574687
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.2%

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 6
Current: $1,364 AUD|Low: $476 AUD|High: $1,375 AUD|Avg: $734 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$506 AUD
Retailer 3$509 AUD
Retailer 8$530 AUD
Retailer 5$568 AUD
Retailer 4$713 AUD
Retailer 7$768 AUD
Retailer 6$1,019 AUD
MOH London$1,364 AUD

42 data points across 8 retailers

8 retailers$506 AUD to $1,364 AUD

A
Cheapest Retailer
-
$506 AUD
A
Retailer 2
-
$509 AUD
View
B+
Retailer 3
-
$530 AUD
View
A
Retailer 4
-
$568 AUD
View
B+
Retailer 5
-
$713 AUD
View
B+
Retailer 6
-
$768 AUD
View
B
Retailer 7
-
$1,019 AUD
View
Most Expensive
B
MOH London
LG749574687 · Nov 4
$1,364 AUD
£738 GBP
View
7 more retailers have this diamond
Prices start from $506 AUDSave up to $858 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
1.25ct Round
$506 AUD