Radiant|Lab Grown|IGI

4.02ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG791609565

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

Certificate IGI LG791609565

Diamond specifications and retailer prices

From $6,279 USD
As of October 26, 2026
Save $15,343 USD (71%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $21,622 USD at Mervis Diamond Importers · As of October 29, 2026
View at Mervis Diamond Importers

About this 4.02ct lab-grown radiant diamond

This 4.02ct 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 LG791609565 or 791609565. Listed at 19 retailers as of October 26, 2026, with prices from $6,279 to $21,622, a $15,343 spread on the same certified stone. Mervis Diamond Importers lists it at $21,622. 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

4.02
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791609565
Dimensions11.07 × 7.90 × 5.36 mm
L/W Ratio1.40
Culet sizePointed
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
11.07 mm7.90 mm4.02 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791609565
Side View
Table 64.0%Crown 43.5°Girdle: MediumPavilion 36.1°Culet: NoneDepth 67.8%

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: Oct 26
Current: $21,622 USD|Low: $4,373 USD|High: $31,730 USD|Avg: $12,234 USD|-18.2%
Mervis Diamond Importers
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
October 23, 2026
Retailer 5$5,067 USD
Retailer 6$5,132 USD
Retailer 3$5,355 USD
Retailer 10$6,279 USD
Retailer 9$6,619 USD
Retailer 13$6,791 USD
Retailer 2$7,482 USD
Retailer 14$7,621 USD
Retailer 8$8,306 USD
Retailer 16$12,070 USD
Retailer 15$12,374 USD
Retailer 7$14,635 USD
Retailer 11$15,310 USD
Retailer 12$19,002 USD
Mervis Diamond Importers$21,622 USD
Retailer 4$31,540 USD

34 data points across 16 retailers

19 retailers$6,279 USD to $21,622 USD

A
Retailer 1
-
$4,584 USD
Price last confirmed 21 days ago
A
Retailer 2
-
$4,804 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
$5,317 USD
View
Price last confirmed 26 days ago
A
Retailer 4
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$5,317 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$5,355 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$6,279 USD
View
B+
Retailer 7
-
$6,619 USD
View
A
Retailer 8
-
$6,791 USD
View
Price last confirmed 13 days ago
B+
Retailer 9
-
$6,967 USD
View
Price last confirmed 24 days ago
B+
Retailer 10
-
$7,482 USD
€7,126 EUR
View
B+
Retailer 11
-
$7,621 USD
£6,001 GBP
View
Price last confirmed 13 days ago
B+
Retailer 12
-
$8,306 USD
£6,540 GBP
View
Price last confirmed 13 days ago
B+
Retailer 13
-
$12,070 USD
£9,504 GBP
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$12,374 USD
ZAR 199,907 ZAR
View
Price last confirmed 14 days ago
B+
Retailer 15
-
$13,265 USD
View
B
Retailer 16
-
$14,635 USD
View
Price last confirmed 13 days ago
B
Retailer 17
-
$15,310 USD
View
B
Retailer 18
-
$19,002 USD
View
Most Expensive
B
Mervis Diamond Importers
1974990453 · Oct 29
$21,622 USD
View
18 more retailers have this diamond
Prices start from $6,279 USDSave up to $15,343 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
4.02ct Radiant
$6,279 USD