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Oval|Lab Grown|IGI

4.78ct H VVS2 Oval Lab Grown Diamond

EX • H/VVS2 • IGI LG823672496

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG823672496

Diamond specifications and retailer prices

From £423 GBP
$567 USD
As of October 29, 2026
Save £332 GBP (44%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,649 GBP at Rare Carat · As of September 28, 2026
View at Rare Carat

About this 4.78ct lab-grown oval diamond

This 4.78ct lab-grown oval sits in the three to five carat band, graded H colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG823672496 or 823672496. Listed at 3 retailers as of October 29, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.78
Carat
H
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823672496
Dimensions13.66 × 9.53 × 5.82 mm
L/W Ratio1.43
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.66 mm9.53 mm4.78 ctH / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823672496
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £2,649 GBP|Low: £423 GBP|High: £2,649 GBP|Avg: £1,155 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 3£423 GBP
Retailer 4£631 GBP
Retailer 2£756 GBP
Rare Carat£2,649 GBP

35 data points across 4 retailers

3 retailers£423 GBP to £756 GBP

A
Cheapest Retailer
-
£423 GBP
$567 USD
Final sale: no returns
A
Retailer 2
-
£756 GBP
View
Most Expensive
Rare Carat
823672496 · Sep 28
£2,649 GBP
$3,550 USD
View
Price last confirmed 32 days ago
2 more retailers have this diamond
Prices start from £423 GBPSave up to £332 GBP

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
4.78ct Oval
£423 GBP