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Radiant|Lab Grown|IGI

1.31ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG825661384

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

Certificate IGI LG825661384

Diamond specifications and retailer prices

From $475 AUD
$334 USD
As of November 1, 2026
Save $3,212 AUD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,193 AUD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.31ct lab-grown radiant diamond

This 1.31ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825661384 or 825661384. Listed at 19 retailers as of October 31, 2026, with a 675% 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

1.31
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle25.9°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825661384
Dimensions7.53 × 5.46 × 3.78 mm
L/W Ratio1.38
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
7.53 mm5.46 mm1.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825661384
Side View
Table 63.0%Crown 25.9°Girdle: MediumPavilion 38.2°Culet: NoneDepth 69.2%

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 1
Current: $4,193 AUD|Low: $475 AUD|High: $5,723 AUD|Avg: $1,745 AUD|-1.5%
Rare Carat
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
November 2, 2026
Retailer 15$475 AUD
Retailer 2$512 AUD
Retailer 8$686 AUD
Retailer 13$776 AUD
Retailer 3$819 AUD
Retailer 10$858 AUD
Retailer 9$878 AUD
Retailer 12$928 AUD
Retailer 5$1,274 AUD
Retailer 16$1,529 AUD
Retailer 6$1,549 AUD
Retailer 4$1,671 AUD
Retailer 7$1,837 AUD
Retailer 11$1,994 AUD
Retailer 14$3,687 AUD
Rare Carat$4,193 AUD

32 data points across 16 retailers

19 retailers$475 AUD to $3,687 AUD

A
Cheapest Retailer
-
$475 AUD
$334 USD
Final sale: no returns
A
Retailer 2
-
$512 AUD
£283 GBP
View
Retailer 3
-
$531 AUD
$373 USD
View
Price last confirmed 31 days ago
Retailer 4
-
$619 AUD
$435 USD
View
Price last confirmed 35 days ago
Retailer 5
-
$686 AUD
$482 USD
View
Price last confirmed 30 days ago
A
Retailer 6
-
$776 AUD
$545 USD
View
A
Retailer 7
-
$819 AUD
$575 USD
View
A
Retailer 8
-
$858 AUD
ZAR 9,734 ZAR
View
A
Retailer 9
-
$878 AUD
£485 GBP
View
A
Retailer 10
-
$928 AUD
€621 EUR
View
B+
Retailer 11
-
$1,274 AUD
$895 USD
View
B+
Retailer 12
-
$1,529 AUD
$1,074 USD
View
B+
Retailer 13
-
$1,549 AUD
$1,088 USD
View
B+
Retailer 14
-
$1,671 AUD
$1,174 USD
View
B+
Retailer 15
-
$1,837 AUD
SGD 1,744 SGD
View
B+
Retailer 16
-
$1,994 AUD
£1,103 GBP
View
Retailer 17
-
$2,204 AUD
$1,548 USD
View
Price last confirmed 32 days ago
B
Retailer 18
-
$3,687 AUD
$2,590 USD
View
Most Expensive
Rare Carat
PD-244044 · Oct 21
$4,193 AUD
$2,945 USD
View
Price last confirmed 12 days ago
18 more retailers have this diamond
Prices start from $475 AUDSave up to $3,212 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
1.31ct Radiant
$475 AUD