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Oval|Lab Grown|IGI

3.78ct G VVS2 Oval Lab Grown Diamond

ID • G/VVS2 • IGI LG799602508

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG799602508

Diamond specifications and retailer prices

From £728 GBP
As of October 30, 2026
Save £2,201 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,929 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.78ct lab-grown oval diamond

This 3.78ct lab-grown oval sits in the three to five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG799602508 or 799602508. Listed at 4 retailers as of October 29, 2026, with prices from £728 to £2,929, a £2,201 spread on the same certified stone. Brilliant Earth lists it at £2,929. 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

3.78
Carat
G
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799602508
Dimensions12.57 × 8.71 × 5.44 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.57 mm8.71 mm3.78 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799602508
Side View
Table 57.0%Crown 35.9°Girdle: MED-THKPavilion 40.5°Culet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £2,929 GBP|Low: £618 GBP|High: £3,019 GBP|Avg: £1,392 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 6£618 GBP
Retailer 4£629 GBP
Retailer 2£728 GBP
Retailer 8£844 GBP
Retailer 7£1,101 GBP
Retailer 5£1,326 GBP
Retailer 9£1,673 GBP
Retailer 3£2,587 GBP
Brilliant Earth£2,929 GBP

37 data points across 9 retailers

4 retailers£728 GBP to £2,929 GBP

A
Cheapest Retailer
-
£728 GBP
Retailer 2
-
£844 GBP
ZAR 18,166 ZAR
View
Price last confirmed 65 days ago
B
Retailer 3
-
£2,587 GBP
$3,445 USD
View
Most Expensive
B
Brilliant Earth
19467386A · Oct 29
£2,929 GBP
$3,900 USD
View
3 more retailers have this diamond
Prices start from £728 GBPSave up to £2,201 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
3.78ct Oval
£728 GBP