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Radiant|Lab Grown|IGI

1.53ct H IF Radiant Lab Grown Diamond

ID • H/IF • IGI LG644486939

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

Certificate IGI LG644486939

Diamond specifications and retailer prices

From $369 AUD
As of November 4, 2026
Save $2,753 AUD (88%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $3,122 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.53ct lab-grown radiant diamond

This 1.53ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG644486939 or 644486939. Listed at 25 retailers as of November 4, 2026, with prices from $369 to $3,122, a $2,753 spread on the same certified stone. Brilliant Earth lists it at $3,122. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
H
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle32.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644486939
Dimensions8.41 × 5.64 × 3.68 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 Faint Blue
Top View
8.41 mm5.64 mm1.53 ctH / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644486939
Side View
Table 65.0%Crown 41.8°Girdle: MED-STKPavilion 32.7°Culet: NoneDepth 65.2%

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: $3,122 AUD|Low: $369 AUD|High: $3,122 AUD|Avg: $1,191 AUD|+0.5%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 23
November 5, 2026
Retailer 19$369 AUD
Retailer 4$428 AUD
Retailer 12$450 AUD
Retailer 8$495 AUD
Retailer 9$495 AUD
Retailer 17$495 AUD
Retailer 18$510 AUD
Retailer 23$616 AUD
Retailer 13$684 AUD
Retailer 6$852 AUD
Retailer 10$868 AUD
Retailer 11$875 AUD
Retailer 7$880 AUD
Retailer 5$1,159 AUD
Retailer 22$1,407 AUD
Retailer 20$1,471 AUD
Retailer 3$1,475 AUD
Retailer 21$1,544 AUD
Retailer 2$1,829 AUD
Retailer 16$1,889 AUD
Retailer 15$2,076 AUD
Retailer 14$2,138 AUD
Brilliant Earth$3,122 AUD

27 data points across 23 retailers

25 retailers$369 AUD to $3,122 AUD

A
Cheapest Retailer
-
$369 AUD
A
Retailer 2
-
$428 AUD
View
A
Retailer 3
-
$450 AUD
View
Final sale: no returns
Retailer 4
-
$495 AUD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$495 AUD
View
A
Retailer 6
-
$495 AUD
View
A
Retailer 7
-
$510 AUD
View
B+
Retailer 8
-
$616 AUD
View
A
Retailer 9
-
$684 AUD
View
B+
Retailer 10
-
$852 AUD
View
A
Retailer 11
-
$868 AUD
View
A
Retailer 12
-
$875 AUD
View
B+
Retailer 13
-
$880 AUD
View
A
Retailer 14
-
$1,159 AUD
View
B+
Retailer 15
-
$1,407 AUD
View
B+
Retailer 16
-
$1,471 AUD
View
B+
Retailer 17
-
$1,475 AUD
View
B+
Retailer 18
-
$1,544 AUD
View
B+
Retailer 19
-
$1,829 AUD
View
Retailer 20
-
$1,889 AUD
View
Price last confirmed 23 days ago
Retailer 21
-
$2,076 AUD
View
Price last confirmed 22 days ago
Retailer 22
-
$2,138 AUD
View
Price last confirmed 18 days ago
Retailer 23
-
$2,175 AUD
View
Price last confirmed 66 days ago
B+
Retailer 24
-
$2,609 AUD
View
Most Expensive
B+
Brilliant Earth
19983871A · Nov 4
$3,122 AUD
$2,190 USD
View
24 more retailers have this diamond
Prices start from $369 AUDSave up to $2,753 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
1.53ct Radiant
$369 AUD