Radiant|Lab Grown|IGI

4.20ct E FL Radiant Lab Grown Diamond

EX • E/FL • IGI LG797604480

Certificate IGI LG797604480

Diamond specifications and retailer prices

From $5,154 USD
Save $25,049 USD (83%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $30,203 USD at With Clarity
View at With Clarity

About this 4.2ct lab-grown radiant diamond

This 4.2ct lab-grown radiant 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 LG797604480 or 797604480. Listed at 27 retailers, with prices from $5,154 to $30,203 at With Clarity, a $25,049 spread on the same certified stone. 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

4.20
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797604480
Dimensions11.48 × 7.95 × 5.40 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.48 mm7.95 mm4.20 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797604480
Side View
Table 65.0%Crown 40.5°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $7,097 USD|Low: $4,121 USD|High: $29,670 USD|Avg: $11,278 USD
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
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
With Clarity
September 30, 2026
Retailer 16$5,154 USD
Retailer 10$5,401 USD
Retailer 20$5,579 USD
Retailer 11$5,896 USD
Retailer 12$5,978 USD
Retailer 19$5,995 USD
Retailer 3$6,057 USD
Retailer 7$6,819 USD
Retailer 18$6,851 USD
Retailer 1$7,097 USD
Retailer 22$7,762 USD
Retailer 17$8,473 USD
Retailer 5$8,765 USD
Retailer 13$9,154 USD
Retailer 2$12,311 USD
Retailer 21$12,492 USD
Retailer 4$15,338 USD
Retailer 15$15,707 USD
Retailer 6$16,044 USD
Retailer 14$16,610 USD
Retailer 8$16,623 USD
Retailer 9$21,400 USD
With Clarity$29,670 USD

37 data points across 23 retailers

27 retailers$5,154 USD to $30,203 USD

A
Cheapest Retailer
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$5,154 USD
A
Retailer 2
-
$5,401 USD
View
A
Retailer 3
-
$5,579 USD
CA$7,749 CAD
View
A
Retailer 4
-
$5,896 USD
View
A
Retailer 5
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$5,908 USD
View
A
Retailer 6
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$5,978 USD
View
A
Retailer 7
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$5,995 USD
View
A
Retailer 8
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$6,057 USD
View
A
Retailer 9
-
$6,819 USD
View
A
Retailer 10
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$6,851 USD
View
A
Retailer 11
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$7,097 USD
View
A
Retailer 12
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$7,779 USD
£6,126 GBP
View
B+
Retailer 13
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$8,473 USD
£6,672 GBP
View
B+
Retailer 14
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$8,765 USD
View
B+
Retailer 15
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$9,154 USD
€8,718 EUR
View
B+
Retailer 16
-
$11,044 USD
View
B+
Retailer 17
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$12,311 USD
£9,694 GBP
View
B+
Retailer 18
-
$12,492 USD
ZAR 201,812 ZAR
View
B+
Retailer 19
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$12,564 USD
View
Price last confirmed 8 days ago
B+
Retailer 20
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$15,338 USD
View
B
Retailer 21
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$15,707 USD
View
B
Retailer 22
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$16,044 USD
View
B
Retailer 23
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$16,610 USD
View
Price last confirmed 19 days ago
B
Retailer 24
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$16,610 USD
View
B
Retailer 25
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$16,623 USD
View
B
Retailer 26
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$21,400 USD
View
Most Expensive
B
With Clarity
797604480 · Sep 30
$30,203 USD
View
26 more retailers have this diamond
Prices start from $5,154 USDSave up to $25,049 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.

A
4.20ct Radiant
$5,154 USD