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Radiant|Lab Grown|IGI

1.33ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG623421838

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

Certificate IGI LG623421838

Diamond specifications and retailer prices

From $453 AUD
As of November 4, 2026
Save $2,690 AUD (86%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,143 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 very-good cut grade and certified by IGI LG623421838 or 623421838. Listed at 24 retailers as of November 4, 2026, with prices from $453 to $3,143, a $2,690 spread on the same certified stone. Brilliant Earth lists it at $3,143. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.33
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.7°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623421838
Dimensions7.40 × 5.52 × 3.86 mm
L/W Ratio1.34
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
7.40 mm5.52 mm1.33 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623421838
Side View
Table 58.0%Crown 44.7°Girdle: MED-STKPavilion 35.5°Culet: NoneDepth 69.9%

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: $3,143 AUD|Low: $434 AUD|High: $5,143 AUD|Avg: $1,479 AUD|-38.7%
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
Retailer 15
November 6, 2026
Retailer 4$453 AUD
Retailer 5$561 AUD
Retailer 8$574 AUD
Retailer 7$757 AUD
Retailer 14$786 AUD
Retailer 13$876 AUD
Retailer 12$969 AUD
Retailer 2$991 AUD
Retailer 10$1,380 AUD
Retailer 11$1,403 AUD
Retailer 6$1,806 AUD
Retailer 3$1,940 AUD
Retailer 9$2,246 AUD
Retailer 15$2,678 AUD
Brilliant Earth$3,143 AUD

40 data points across 15 retailers

24 retailers$453 AUD to $3,143 AUD

A
Cheapest Retailer
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$453 AUD
A
Retailer 2
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$506 AUD
View
Final sale: no returns
A
Retailer 3
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$526 AUD
View
Retailer 4
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$561 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
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$561 AUD
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A
Retailer 6
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$574 AUD
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A
Retailer 7
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$757 AUD
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A
Retailer 8
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$786 AUD
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A
Retailer 9
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$876 AUD
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A
Retailer 10
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$920 AUD
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A
Retailer 11
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$969 AUD
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A
Retailer 12
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$991 AUD
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B+
Retailer 13
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$1,331 AUD
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B+
Retailer 14
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$1,380 AUD
View
B+
Retailer 15
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$1,403 AUD
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B+
Retailer 16
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$1,514 AUD
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B
Retailer 17
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$1,806 AUD
View
B
Retailer 18
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$1,870 AUD
View
Retailer 19
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$1,940 AUD
View
Price last confirmed 29 days ago
B
Retailer 20
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$1,996 AUD
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B
Retailer 21
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$2,238 AUD
View
B
Retailer 22
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$2,246 AUD
View
Retailer 23
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$2,678 AUD
View
Price last confirmed 16 days ago
Most Expensive
B
Brilliant Earth
9481163A · Nov 4
$3,143 AUD
$2,200 USD
View
23 more retailers have this diamond
Prices start from $453 AUDSave up to $2,690 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