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Radiant|Lab Grown|IGI

1.31ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG804649668

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

Certificate IGI LG804649668

Diamond specifications and retailer prices

From $297 USD
As of November 4, 2026
Save $2,073 USD (87%) vs most expensive(unlock to see where)
20 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 LG804649668 or 804649668. Listed at 20 retailers as of November 4, 2026, with a 698% 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 angle37.6°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804649668
Dimensions7.73 × 5.35 × 3.67 mm
L/W Ratio1.44
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
7.73 mm5.35 mm1.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804649668
Side View
Table 65.0%Crown 37.6°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 68.6%

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: $2,945 USD|Low: $297 USD|High: $4,020 USD|Avg: $1,143 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
Retailer 17
November 4, 2026
Retailer 17$297 USD
Retailer 2$338 USD
Retailer 9$482 USD
Retailer 12$490 USD
Retailer 10$546 USD
Retailer 6$588 USD
Retailer 8$595 USD
Retailer 11$624 USD
Retailer 7$652 USD
Retailer 13$889 USD
Retailer 4$993 USD
Retailer 15$1,011 USD
Retailer 16$1,108 USD
Retailer 3$1,186 USD
Retailer 5$1,318 USD
Retailer 14$2,370 USD
Rare Carat$2,945 USD

30 data points across 17 retailers

20 retailers$297 USD to $2,370 USD

A
Cheapest Retailer
-
$297 USD
Final sale: no returns
A
Retailer 2
-
$338 USD
View
Retailer 3
-
$373 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$435 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$482 USD
View
Price last confirmed 32 days ago
A
Retailer 6
-
$490 USD
View
A
Retailer 7
-
$546 USD
View
A
Retailer 8
-
$588 USD
View
A
Retailer 9
-
$595 USD
View
A
Retailer 10
-
$624 USD
View
A
Retailer 11
-
$652 USD
View
B+
Retailer 12
-
$889 USD
View
B+
Retailer 13
-
$993 USD
View
B+
Retailer 14
-
$1,011 USD
View
B+
Retailer 15
-
$1,108 USD
View
B+
Retailer 16
-
$1,186 USD
View
B+
Retailer 17
-
$1,318 USD
View
Retailer 18
-
$1,548 USD
View
Price last confirmed 35 days ago
B
Retailer 19
-
$2,370 USD
View
Most Expensive
Rare Carat
ACP-208191 · Oct 21
$2,945 USD
View
Price last confirmed 14 days ago
19 more retailers have this diamond
Prices start from $297 USDSave up to $2,073 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
$297 USD