Oval|Lab Grown|GIA

4.20ct E IF Oval Lab Grown Diamond

ID • E/IF • GIA 2486593486

Certificate GIA 2486593486

Diamond specifications and retailer prices

From £11,286 GBP
$15,030 USD
As of October 28, 2026
5 retailers carry this diamond
Most expensive: £11,286 GBP at Brilliant Earth
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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2486593486. Listed at 5 retailers as of October 28, 2026. 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
Colour
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2486593486
Dimensions13.08 × 9.07 × 5.66 mm
L/W Ratio1.44
Top View
13.08 mm9.07 mm4.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2486593486
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: £11,286 GBP|Low: £5,738 GBP|High: £11,632 GBP|Avg: £7,838 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 12, 2026
Retailer 4£5,738 GBP
Retailer 3£5,946 GBP
Retailer 5£6,215 GBP
Retailer 2£7,381 GBP
Brilliant Earth£11,286 GBP

7 data points across 5 retailers

5 retailers

Retailer 1
-
£5,738 GBP
$7,641 USD
Price last confirmed 22 days ago
Retailer 2
-
£5,946 GBP
$7,918 USD
View
Price last confirmed 17 days ago
Retailer 3
-
£6,215 GBP
$8,277 USD
View
Price last confirmed 34 days ago
Retailer 4
-
£7,381 GBP
$9,829 USD
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
11576081Y · Oct 28
£11,286 GBP
$15,030 USD
View
4 more retailers have this diamond

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.

B
4.20ct Oval
£11,286 GBP