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Radiant|Lab Grown|IGI

4.01ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG804636937

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

Certificate IGI LG804636937

Diamond specifications and retailer prices

From $3,739 USD
As of October 27, 2026
Save $11,588 USD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $15,327 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 LG804636937 or 804636937. Listed at 18 retailers as of October 27, 2026, with prices from $3,739 to $15,327, a $11,588 spread on the same certified stone. Taylor and Hart lists it at $15,327. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804636937
Dimensions11.13 × 7.81 × 5.38 mm
L/W Ratio1.43
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
11.13 mm7.81 mm4.01 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804636937
Side View
Table 63.0%Crown 43.4°Girdle: Slightly ThickPavilion 35.5°Culet: NoneDepth 68.9%

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 27
Current: $5,675 USD|Low: $3,739 USD|High: $19,305 USD|Avg: $8,156 USD|-23.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Taylor and Hart
October 30, 2026
Retailer 5$3,739 USD
Retailer 3$4,068 USD
Retailer 6$4,187 USD
Retailer 13$4,201 USD
Retailer 11$4,338 USD
Retailer 9$5,396 USD
Retailer 14$5,420 USD
Retailer 16$5,522 USD
Retailer 1$5,675 USD
Retailer 2$5,840 USD
Retailer 17$6,660 USD
Retailer 7$6,722 USD
Retailer 8$6,892 USD
Retailer 10$9,231 USD
Retailer 12$9,341 USD
Retailer 4$10,925 USD
Retailer 15$12,043 USD
Taylor and Hart$15,327 USD

33 data points across 18 retailers

18 retailers$3,739 USD to $15,327 USD

A
Cheapest Retailer
-
$3,739 USD
A
Retailer 2
-
$4,068 USD
View
A
Retailer 3
-
$4,187 USD
View
Final sale: no returns
A
Retailer 4
-
$4,201 USD
View
A
Retailer 5
-
$4,338 USD
View
Retailer 6
-
$5,396 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
$5,420 USD
View
A
Retailer 8
-
$5,522 USD
View
A
Retailer 9
-
$5,675 USD
£4,469 GBP
View
A
Retailer 10
-
$5,840 USD
View
B+
Retailer 11
-
$6,660 USD
£5,244 GBP
View
A
Retailer 12
-
$6,722 USD
View
Retailer 13
-
$6,892 USD
View
Price last confirmed 13 days ago
B+
Retailer 14
-
$9,231 USD
ZAR 149,130 ZAR
View
B+
Retailer 15
-
$9,341 USD
£7,355 GBP
View
B+
Retailer 16
-
$10,925 USD
View
B
Retailer 17
-
$12,043 USD
View
Most Expensive
B
Taylor and Hart
IVYT399 · Oct 30
$15,327 USD
View
17 more retailers have this diamond
Prices start from $3,739 USDSave up to $11,588 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
$3,739 USD