Oval|Lab Grown|IGI

4.20ct F VS2 Oval Lab Grown Diamond

EX • F/VS2 • IGI LG843643654

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG843643654

Diamond specifications and retailer prices

From $567 USD
As of October 29, 2026
Save $2,953 USD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,520 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 4.2ct lab-grown oval diamond

This 4.2ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843643654 or 843643654. Listed at 17 retailers as of October 28, 2026, with prices from $567 to $3,520, a $2,953 spread on the same certified stone. Brilliant Earth lists it at $3,520. 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
F
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843643654
Dimensions12.77 × 9.02 × 5.59 mm
L/W Ratio1.42
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.77 mm9.02 mm4.20 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843643654
Side View
Table 59.0%Crown 35.6°Girdle: THK-VTKPavilion 39.5°Culet: NoneDepth 62.0%

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 29
Current: $3,520 USD|Low: $567 USD|High: $3,520 USD|Avg: $1,554 USD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 1, 2026
Retailer 15$567 USD
Retailer 10$606 USD
Retailer 8$635 USD
Retailer 12$635 USD
Retailer 6$703 USD
Retailer 17$835 USD
Retailer 14$1,082 USD
Retailer 11$1,097 USD
Retailer 13$1,100 USD
Retailer 3$1,614 USD
Retailer 16$1,744 USD
Retailer 5$1,849 USD
Retailer 4$2,263 USD
Retailer 7$2,278 USD
Retailer 2$3,052 USD
Retailer 9$3,205 USD
Brilliant Earth$3,520 USD

12 data points across 17 retailers

17 retailers$567 USD to $3,520 USD

A
Cheapest Retailer
-
$567 USD
A
Retailer 2
-
$606 USD
£477 GBP
View
A
Retailer 3
-
$635 USD
View
A
Retailer 4
-
$635 USD
View
Final sale: no returns
A
Retailer 5
-
$703 USD
View
A
Retailer 6
-
$835 USD
View
B+
Retailer 7
-
$1,082 USD
View
A
Retailer 8
-
$1,097 USD
£864 GBP
View
A
Retailer 9
-
$1,100 USD
View
B+
Retailer 10
-
$1,614 USD
View
B+
Retailer 11
-
$1,744 USD
View
B+
Retailer 12
-
$1,849 USD
View
B+
Retailer 13
-
$2,263 USD
View
B+
Retailer 14
-
$2,278 USD
View
B
Retailer 15
-
$3,052 USD
£2,403 GBP
View
Retailer 16
-
$3,205 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
22219886A · Oct 28
$3,520 USD
View
16 more retailers have this diamond
Prices start from $567 USDSave up to $2,953 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
4.20ct Oval
$567 USD