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Radiant|Lab Grown|IGI

1.33ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG623421833

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

Certificate IGI LG623421833

Diamond specifications and retailer prices

From $453 AUD
As of November 4, 2026
Save $3,776 AUD (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $4,228 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.33ct lab-grown radiant diamond

This 1.33ct 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 LG623421833 or 623421833. Listed at 23 retailers as of November 4, 2026, with prices from $453 to $4,228, a $3,776 spread on the same certified stone. Brilliant Earth lists it at $4,228. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.33
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.1°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623421833
Dimensions7.27 × 5.55 × 3.76 mm
L/W Ratio1.31
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
7.27 mm5.55 mm1.33 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623421833
Side View
Table 65.0%Crown 48.1°Girdle: MediumPavilion 35.6°Culet: NoneDepth 67.7%

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 4
Current: $4,228 AUD|Low: $434 AUD|High: $4,485 AUD|Avg: $1,386 AUD|-5.7%
Brilliant Earth
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 14$453 AUD
Retailer 4$561 AUD
Retailer 7$574 AUD
Retailer 6$757 AUD
Retailer 13$786 AUD
Retailer 12$876 AUD
Retailer 11$969 AUD
Retailer 2$991 AUD
Retailer 9$1,380 AUD
Retailer 10$1,403 AUD
Retailer 5$1,806 AUD
Retailer 3$1,940 AUD
Retailer 8$2,246 AUD
Brilliant Earth$4,228 AUD

40 data points across 14 retailers

23 retailers$453 AUD to $4,228 AUD

A
Cheapest Retailer
-
$453 AUD
A
Retailer 2
-
$506 AUD
View
Final sale: no returns
A
Retailer 3
-
$526 AUD
View
Retailer 4
-
$561 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$561 AUD
View
A
Retailer 6
-
$574 AUD
View
A
Retailer 7
-
$757 AUD
View
A
Retailer 8
-
$786 AUD
View
A
Retailer 9
-
$876 AUD
View
A
Retailer 10
-
$920 AUD
View
A
Retailer 11
-
$969 AUD
View
A
Retailer 12
-
$991 AUD
View
B+
Retailer 13
-
$1,331 AUD
View
B+
Retailer 14
-
$1,380 AUD
View
B+
Retailer 15
-
$1,403 AUD
View
B+
Retailer 16
-
$1,514 AUD
View
B+
Retailer 17
-
$1,806 AUD
View
B+
Retailer 18
-
$1,870 AUD
View
Retailer 19
-
$1,940 AUD
View
Price last confirmed 29 days ago
B
Retailer 20
-
$1,996 AUD
View
B
Retailer 21
-
$2,238 AUD
View
B+
Retailer 22
-
$2,246 AUD
View
Most Expensive
B
Brilliant Earth
9481162A · Nov 4
$4,228 AUD
$2,960 USD
View
22 more retailers have this diamond
Prices start from $453 AUDSave up to $3,776 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
1.33ct Radiant
$453 AUD