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Radiant|Lab Grown|IGI

1.29ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754508761

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

Certificate IGI LG754508761

Diamond specifications and retailer prices

From $640 AUD
As of November 4, 2026
Save $2,053 AUD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,693 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.29ct lab-grown radiant diamond

This 1.29ct 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 LG754508761 or 754508761. Listed at 14 retailers as of November 4, 2026, with prices from $640 to $2,693, a $2,053 spread on the same certified stone. Blue Nile lists it at $2,693. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.9°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508761
Dimensions5.37 × 5.37 × 3.54 mm
L/W Ratio1.00
Culet sizePointed
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
5.37 mm5.37 mm1.29 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508761
Side View
Table 62.0%Crown 46.9°Girdle: MED-STKPavilion 33.1°Culet: NoneDepth 65.9%

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 4
Current: $2,693 AUD|Low: $563 AUD|High: $3,643 AUD|Avg: $1,621 AUD
Blue Nile
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
November 6, 2026
Retailer 9$640 AUD
Retailer 10$646 AUD
Retailer 12$760 AUD
Retailer 6$783 AUD
Retailer 2$863 AUD
Retailer 7$957 AUD
Retailer 13$1,013 AUD
Retailer 14$1,711 AUD
Retailer 8$1,828 AUD
Retailer 11$1,836 AUD
Retailer 5$1,848 AUD
Retailer 4$2,636 AUD
Retailer 3$2,671 AUD
Blue Nile$2,693 AUD

44 data points across 14 retailers

14 retailers$640 AUD to $2,693 AUD

A
Cheapest Retailer
-
$640 AUD
A
Retailer 2
-
$646 AUD
View
A
Retailer 3
-
$760 AUD
View
A
Retailer 4
-
$783 AUD
View
A
Retailer 5
-
$863 AUD
View
A
Retailer 6
-
$957 AUD
View
A
Retailer 7
-
$1,013 AUD
View
B+
Retailer 8
-
$1,711 AUD
View
B+
Retailer 9
-
$1,828 AUD
View
B
Retailer 10
-
$1,836 AUD
View
Retailer 11
-
$1,848 AUD
View
Price last confirmed 29 days ago
Retailer 12
-
$2,636 AUD
View
Price last confirmed 19 days ago
B
Retailer 13
-
$2,671 AUD
View
Most Expensive
B
Blue Nile
28885049 · Nov 5
$2,693 AUD
$1,885 USD
View
13 more retailers have this diamond
Prices start from $640 AUDSave up to $2,053 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
1.29ct Radiant
$640 AUD