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Cushion|Lab Grown|IGI

4.01ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG800663001

Shape and cutting style on the report: Rectangular cushion modified brilliant

Certificate IGI LG800663001

Diamond specifications and retailer prices

From $5,311 USD
As of October 29, 2026
Save $16,626 USD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $21,937 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.01ct lab-grown cushion diamond

This 4.01ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800663001 or 800663001. Listed at 16 retailers as of October 29, 2026, with prices from $5,311 to $21,937, a $16,626 spread on the same certified stone. Taylor and Hart lists it at $21,937. 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
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800663001
Dimensions10.82 × 7.43 × 4.88 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeLarge
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
10.82 mm7.43 mm4.01 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800663001
Side View
Table 67.0%Crown 38.4°Girdle: MED-STKPavilion 41.8°Culet: LargeDepth 65.7%

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: $7,896 USD|Low: $4,605 USD|High: $21,937 USD|Avg: $9,499 USD|+0.5%
Retailer 1
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
Taylor and Hart
October 30, 2026
Retailer 12$5,311 USD
Retailer 14$5,566 USD
Retailer 2$6,161 USD
Retailer 4$6,161 USD
Retailer 11$6,175 USD
Retailer 6$6,457 USD
Retailer 9$7,035 USD
Retailer 3$7,313 USD
Retailer 10$7,587 USD
Retailer 1$7,896 USD
Retailer 5$8,733 USD
Retailer 15$10,395 USD
Retailer 8$12,603 USD
Retailer 13$13,722 USD
Retailer 7$17,132 USD
Taylor and Hart$21,937 USD

41 data points across 16 retailers

16 retailers$5,311 USD to $21,937 USD

A
Cheapest Retailer
-
$5,311 USD
A
Retailer 2
-
$5,566 USD
View
A
Retailer 3
-
$6,161 USD
View
Retailer 4
-
$6,161 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$6,175 USD
View
A
Retailer 6
-
$6,457 USD
View
A
Retailer 7
-
$7,035 USD
View
Final sale: no returns
A
Retailer 8
-
$7,313 USD
View
A
Retailer 9
-
$7,587 USD
View
A
Retailer 10
-
$7,896 USD
£6,218 GBP
View
B+
Retailer 11
-
$8,733 USD
£6,876 GBP
View
B+
Retailer 12
-
$10,395 USD
View
B+
Retailer 13
-
$12,603 USD
£9,924 GBP
View
B
Retailer 14
-
$13,722 USD
View
B
Retailer 15
-
$17,132 USD
View
Most Expensive
B
Taylor and Hart
3HNUFDP · Oct 30
$21,937 USD
View
15 more retailers have this diamond
Prices start from $5,311 USDSave up to $16,626 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 Cushion
$5,311 USD