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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 $334 USD
As of November 1, 2026
Save $2,256 USD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,945 USD 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 November 1, 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
Color
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

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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 1
Current: $2,945 USD|Low: $334 USD|High: $4,020 USD|Avg: $1,226 USD|-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$334 USD
Retailer 2$351 USD
Retailer 8$482 USD
Retailer 13$545 USD
Retailer 3$575 USD
Retailer 10$603 USD
Retailer 9$617 USD
Retailer 12$652 USD
Retailer 5$895 USD
Retailer 16$1,074 USD
Retailer 6$1,088 USD
Retailer 4$1,174 USD
Retailer 7$1,291 USD
Retailer 11$1,401 USD
Retailer 14$2,590 USD
Rare Carat$2,945 USD

32 data points across 16 retailers

19 retailers$334 USD to $2,590 USD

A
Cheapest Retailer
-
$334 USD
Final sale: no returns
A
Retailer 2
-
$351 USD
£277 GBP
View
Retailer 3
-
$373 USD
View
Price last confirmed 31 days ago
Retailer 4
-
$435 USD
View
Price last confirmed 36 days ago
Retailer 5
-
$482 USD
View
Price last confirmed 30 days ago
A
Retailer 6
-
$545 USD
View
A
Retailer 7
-
$575 USD
View
A
Retailer 8
-
$603 USD
ZAR 9,734 ZAR
View
A
Retailer 9
-
$617 USD
£485 GBP
View
A
Retailer 10
-
$652 USD
€621 EUR
View
B+
Retailer 11
-
$895 USD
View
B+
Retailer 12
-
$1,074 USD
View
B+
Retailer 13
-
$1,088 USD
View
B+
Retailer 14
-
$1,174 USD
View
B+
Retailer 15
-
$1,291 USD
SGD 1,744 SGD
View
B+
Retailer 16
-
$1,401 USD
£1,103 GBP
View
Retailer 17
-
$1,548 USD
View
Price last confirmed 33 days ago
B
Retailer 18
-
$2,590 USD
View
Most Expensive
Rare Carat
PD-244044 · Oct 21
$2,945 USD
View
Price last confirmed 12 days ago
18 more retailers have this diamond
Prices start from $334 USDSave up to $2,256 USD

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
$334 USD