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Radiant|Lab Grown|IGI

1.26ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG829603851

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

Certificate IGI LG829603851

Diamond specifications and retailer prices

From $399 AUD
As of November 5, 2026
Save $3,844 AUD (91%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,243 AUD at Brilliant Earth · As of November 4, 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 LG829603851 or 829603851. Listed at 17 retailers as of November 4, 2026, with prices from $399 to $4,243, a $3,844 spread on the same certified stone. Brilliant Earth lists it at $4,243. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG829603851
Dimensions7.46 × 5.27 × 3.55 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.46 mm5.27 mm1.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG829603851
Side View
Table 64.0%Crown 41.5°Girdle: Slightly ThickPavilion 41.1°Culet: NoneDepth 67.4%

Caratlytics Score

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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: $1,541 AUD|Low: $399 AUD|High: $2,284 AUD|Avg: $1,077 AUD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 10$399 AUD
Retailer 9$450 AUD
Retailer 6$597 AUD
Retailer 8$671 AUD
Retailer 3$766 AUD
Retailer 2$796 AUD
Retailer 12$833 AUD
Retailer 5$913 AUD
Retailer 15$1,083 AUD
Retailer 13$1,177 AUD
Retailer 14$1,359 AUD
Retailer 16$1,494 AUD
Retailer 1$1,541 AUD
Retailer 7$1,736 AUD
Retailer 4$1,777 AUD
Retailer 11$2,251 AUD

20 data points across 16 retailers

17 retailers$399 AUD to $4,243 AUD

A
Cheapest Retailer
-
$399 AUD
Final sale: no returns
A
Retailer 2
-
$450 AUD
View
A
Retailer 3
-
$597 AUD
View
A
Retailer 4
-
$671 AUD
View
A
Retailer 5
-
$766 AUD
View
A
Retailer 6
-
$796 AUD
View
A
Retailer 7
-
$833 AUD
View
A
Retailer 8
-
$913 AUD
View
A
Retailer 9
-
$1,083 AUD
View
B+
Retailer 10
-
$1,177 AUD
View
B+
Retailer 11
-
$1,359 AUD
View
B+
Retailer 12
-
$1,494 AUD
View
B+
Retailer 13
-
$1,541 AUD
View
B+
Retailer 14
-
$1,736 AUD
View
B+
Retailer 15
-
$1,777 AUD
View
B+
Retailer 16
-
$2,251 AUD
View
Most Expensive
B
Brilliant Earth
21324949A · Nov 4
$4,243 AUD
$2,970 USD
View
16 more retailers have this diamond
Prices start from $399 AUDSave up to $3,844 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
$399 AUD