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Radiant|Lab Grown|IGI

4.01ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG823669954

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

Certificate IGI LG823669954

Diamond specifications and retailer prices

From $4,676 USD
As of October 29, 2026
Save $12,551 USD (73%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $17,227 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.01ct lab-grown radiant diamond

This 4.01ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG823669954 or 823669954. Listed at 17 retailers as of October 29, 2026, with prices from $4,676 to $17,227, a $12,551 spread on the same certified stone. Taylor and Hart lists it at $17,227. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.01
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823669954
Dimensions11.22 × 7.88 × 5.36 mm
L/W Ratio1.42
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
11.22 mm7.88 mm4.01 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823669954
Side View
Table 65.0%Crown 42.6°Girdle: MediumPavilion 36.6°Culet: NoneDepth 68.0%

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: Oct 29
Current: $6,373 USD|Low: $4,676 USD|High: $21,141 USD|Avg: $9,547 USD|-22.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
October 30, 2026
Retailer 11$4,676 USD
Retailer 6$4,890 USD
Retailer 8$5,672 USD
Retailer 7$6,302 USD
Retailer 1$6,373 USD
Retailer 3$6,797 USD
Retailer 5$7,463 USD
Retailer 9$7,497 USD
Retailer 2$9,040 USD
Retailer 4$10,081 USD
Retailer 10$13,454 USD
Taylor and Hart$17,227 USD

44 data points across 12 retailers

17 retailers$4,676 USD to $17,227 USD

A
Cheapest Retailer
-
$4,676 USD
Final sale: no returns
A
Retailer 2
-
$4,890 USD
View
Retailer 3
-
$5,047 USD
View
Price last confirmed 21 days ago
Retailer 4
-
$5,290 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$5,672 USD
View
Retailer 6
-
$5,855 USD
View
Price last confirmed 27 days ago
Retailer 7
-
$5,855 USD
View
Price last confirmed 17 days ago
A
Retailer 8
-
$6,302 USD
View
A
Retailer 9
-
$6,373 USD
£5,018 GBP
View
A
Retailer 10
-
$6,797 USD
£5,352 GBP
View
Retailer 11
-
$6,950 USD
View
Price last confirmed 25 days ago
B+
Retailer 12
-
$7,463 USD
€7,108 EUR
View
B+
Retailer 13
-
$7,497 USD
View
B+
Retailer 14
-
$9,040 USD
View
B+
Retailer 15
-
$10,081 USD
£7,938 GBP
View
B
Retailer 16
-
$13,454 USD
View
Most Expensive
B
Taylor and Hart
80VZCOZ · Oct 30
$17,227 USD
View
16 more retailers have this diamond
Prices start from $4,676 USDSave up to $12,551 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
4.01ct Radiant
$4,676 USD