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Radiant|Lab Grown|IGI

1.51ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG523265555

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

Certificate IGI LG523265555

Diamond specifications and retailer prices

From $449 AUD
As of November 4, 2026
Save $2,194 AUD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,643 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG523265555 or 523265555. Listed at 22 retailers as of November 4, 2026, with prices from $449 to $2,643, a $2,194 spread on the same certified stone. Brilliant Earth lists it at $2,643. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523265555
Dimensions8.19 × 5.59 × 3.86 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.19 mm5.59 mm1.51 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523265555
Side View
Table 67.5%Crown 43°Girdle: ThickPavilion 35°Culet: NoneDepth 69.1%

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: $2,643 AUD|Low: $430 AUD|High: $2,771 AUD|Avg: $1,307 AUD|-4.6%
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
November 5, 2026
Retailer 12$449 AUD
Retailer 13$556 AUD
Retailer 2$646 AUD
Retailer 11$779 AUD
Retailer 5$904 AUD
Retailer 9$959 AUD
Retailer 6$981 AUD
Retailer 8$1,306 AUD
Retailer 10$1,631 AUD
Retailer 4$1,788 AUD
Retailer 3$2,138 AUD
Retailer 7$2,221 AUD
Brilliant Earth$2,643 AUD

39 data points across 13 retailers

22 retailers$449 AUD to $2,643 AUD

A
Cheapest Retailer
-
$449 AUD
A
Retailer 2
-
$501 AUD
View
Final sale: no returns
A
Retailer 3
-
$520 AUD
View
Retailer 4
-
$556 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$556 AUD
View
A
Retailer 6
-
$646 AUD
View
B+
Retailer 7
-
$779 AUD
View
A
Retailer 8
-
$779 AUD
View
B+
Retailer 9
-
$904 AUD
View
B+
Retailer 10
-
$924 AUD
View
B+
Retailer 11
-
$959 AUD
View
B+
Retailer 12
-
$981 AUD
View
B+
Retailer 13
-
$1,243 AUD
View
B+
Retailer 14
-
$1,306 AUD
View
B
Retailer 15
-
$1,631 AUD
View
B
Retailer 16
-
$1,788 AUD
View
B
Retailer 17
-
$1,853 AUD
View
B
Retailer 18
-
$2,138 AUD
View
B
Retailer 19
-
$2,154 AUD
View
B
Retailer 20
-
$2,221 AUD
View
B
Retailer 21
-
$2,224 AUD
View
Most Expensive
B
Brilliant Earth
17972663A · Nov 4
$2,643 AUD
$1,850 USD
View
21 more retailers have this diamond
Prices start from $449 AUDSave up to $2,194 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
1.51ct Radiant
$449 AUD