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Radiant|Lab Grown|IGI

1.26ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG854613807

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG854613807

Diamond specifications and retailer prices

From $427 AUD
As of November 6, 2026
Save $3,830 AUD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,257 AUD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.26ct lab-grown radiant diamond

This 1.26ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG854613807 or 854613807. Listed at 12 retailers as of November 5, 2026, with prices from $427 to $4,257, a $3,830 spread on the same certified stone. Brilliant Earth lists it at $4,257. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG854613807
Dimensions7.62 × 5.28 × 3.51 mm
L/W Ratio1.44
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.62 mm5.28 mm1.26 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG854613807
Side View
Table 65.0%Crown 44.2°Girdle: Slightly ThickPavilion 34.9°Culet: NoneDepth 66.5%

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: $4,257 AUD|Low: $427 AUD|High: $4,257 AUD|Avg: $1,311 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$427 AUD
Retailer 12$456 AUD
Retailer 2$467 AUD
Retailer 11$494 AUD
Retailer 8$686 AUD
Retailer 5$761 AUD
Retailer 7$861 AUD
Retailer 10$1,181 AUD
Retailer 4$1,540 AUD
Retailer 3$1,823 AUD
Retailer 6$1,967 AUD
Brilliant Earth$4,257 AUD

3 data points across 12 retailers

12 retailers$427 AUD to $4,257 AUD

A
Cheapest Retailer
-
$427 AUD
A
Retailer 2
-
$456 AUD
View
A
Retailer 3
-
$467 AUD
View
A
Retailer 4
-
$494 AUD
View
Final sale: no returns
A
Retailer 5
-
$686 AUD
View
A
Retailer 6
-
$761 AUD
View
A
Retailer 7
-
$861 AUD
View
B+
Retailer 8
-
$1,181 AUD
View
B+
Retailer 9
-
$1,540 AUD
View
B
Retailer 10
-
$1,823 AUD
View
B
Retailer 11
-
$1,967 AUD
View
Most Expensive
B
Brilliant Earth
22510806A · Nov 5
$4,257 AUD
$2,980 USD
View
11 more retailers have this diamond
Prices start from $427 AUDSave up to $3,830 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 Radiant
$427 AUD