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Radiant|Lab Grown|IGI

1.33ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG687598627

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

Certificate IGI LG687598627

Diamond specifications and retailer prices

From $324 AUD
As of November 4, 2026
Save $2,790 AUD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,520 AUD at Queensmith · As of October 27, 2026
View at Queensmith

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 LG687598627 or 687598627. Listed at 24 retailers as of November 4, 2026, with a 860% 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 angle37.6°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687598627
Dimensions8.25 × 5.53 × 3.55 mm
L/W Ratio1.49
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
8.25 mm5.53 mm1.33 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687598627
Side View
Table 61.0%Crown 37.6°Girdle: MediumPavilion 34.9°Culet: NoneDepth 64.2%

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: $834 AUD|Low: $313 AUD|High: $3,471 AUD|Avg: $1,248 AUD|+0.5%
Retailer 1
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November 6, 2026
Retailer 2$324 AUD
Retailer 10$361 AUD
Retailer 21$376 AUD
Retailer 6$401 AUD
Retailer 11$401 AUD
Retailer 12$453 AUD
Retailer 19$573 AUD
Retailer 14$584 AUD
Retailer 4$753 AUD
Retailer 18$764 AUD
Retailer 1$834 AUD
Retailer 17$1,084 AUD
Retailer 5$1,296 AUD
Retailer 3$1,424 AUD
Retailer 15$1,668 AUD
Retailer 9$1,718 AUD
Retailer 13$1,718 AUD
Retailer 16$1,770 AUD
Retailer 8$1,824 AUD
Retailer 22$2,486 AUD
Retailer 7$3,114 AUD
Retailer 20$3,114 AUD

38 data points across 22 retailers

24 retailers$324 AUD to $3,114 AUD

A
Cheapest Retailer
-
$324 AUD
A
Retailer 2
-
$361 AUD
View
Final sale: no returns
A
Retailer 3
-
$376 AUD
View
Retailer 4
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$401 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
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$401 AUD
View
A
Retailer 6
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$453 AUD
View
A
Retailer 7
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$573 AUD
View
A
Retailer 8
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$584 AUD
View
A
Retailer 9
-
$753 AUD
View
A
Retailer 10
-
$764 AUD
View
A
Retailer 11
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$834 AUD
View
A
Retailer 12
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$1,010 AUD
View
A
Retailer 13
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$1,084 AUD
View
B+
Retailer 14
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$1,296 AUD
View
B+
Retailer 15
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$1,424 AUD
View
B+
Retailer 16
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$1,668 AUD
View
B+
Retailer 17
-
$1,718 AUD
View
B+
Retailer 18
-
$1,718 AUD
View
B+
Retailer 19
-
$1,770 AUD
View
B+
Retailer 20
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$1,824 AUD
View
Retailer 21
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$2,486 AUD
View
Price last confirmed 16 days ago
B
Retailer 22
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$3,114 AUD
View
B
Retailer 23
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$3,114 AUD
View
Most Expensive
Queensmith
LG687598627 · Oct 27
$3,520 AUD
£1,940 GBP
View
Price last confirmed 9 days ago
23 more retailers have this diamond
Prices start from $324 AUDSave up to $2,790 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
$324 AUD