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Radiant|Lab Grown|IGI

1.33ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG689516105

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

Certificate IGI LG689516105

Diamond specifications and retailer prices

From $521 AUD
As of November 4, 2026
Save $1,761 AUD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,143 AUD at Brilliant Earth · As of October 8, 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 LG689516105 or 689516105. Listed at 14 retailers as of November 4, 2026, with a 338% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689516105
Dimensions6.56 × 6.23 × 3.88 mm
L/W Ratio1.05
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
6.56 mm6.23 mm1.33 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689516105
Side View
Table 58.0%Crown 37.8°Girdle: MediumPavilion 34.9°Culet: NoneDepth 62.3%

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: $5,143 AUD|Low: $521 AUD|High: $5,143 AUD|Avg: $1,528 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 4$521 AUD
Retailer 8$537 AUD
Retailer 17$579 AUD
Retailer 2$591 AUD
Retailer 12$779 AUD
Retailer 10$800 AUD
Retailer 3$936 AUD
Retailer 16$941 AUD
Retailer 11$997 AUD
Retailer 15$1,384 AUD
Retailer 7$1,534 AUD
Retailer 5$1,923 AUD
Retailer 9$2,177 AUD
Retailer 6$2,283 AUD
Retailer 14$2,330 AUD
Retailer 13$2,686 AUD
Brilliant Earth$5,143 AUD

34 data points across 17 retailers

14 retailers$521 AUD to $2,283 AUD

A
Cheapest Retailer
-
$521 AUD
Final sale: no returns
Retailer 2
-
$579 AUD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$591 AUD
View
A
Retailer 4
-
$779 AUD
View
A
Retailer 5
-
$800 AUD
View
A
Retailer 6
-
$936 AUD
View
A
Retailer 7
-
$997 AUD
View
B+
Retailer 8
-
$1,384 AUD
View
B
Retailer 9
-
$1,923 AUD
View
B
Retailer 10
-
$2,283 AUD
View
Retailer 11
-
$2,330 AUD
View
Price last confirmed 18 days ago
Retailer 12
-
$2,686 AUD
View
Price last confirmed 19 days ago
Retailer 13
-
$2,774 AUD
View
Price last confirmed 89 days ago
Most Expensive
Brilliant Earth
21386154A · Oct 8
$5,143 AUD
$3,600 USD
View
Price last confirmed 28 days ago
13 more retailers have this diamond
Prices start from $521 AUDSave up to $1,761 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
$521 AUD