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Oval|Lab Grown|IGI

3.78ct G VVS2 Oval Lab Grown Diamond

EX • G/VVS2 • IGI LG805685235

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG805685235

Diamond specifications and retailer prices

From £378 GBP
$504 USD
As of October 29, 2026
Save £2,935 GBP (89%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,314 GBP at Helzberg Diamonds · As of October 28, 2026
View at Helzberg Diamonds

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 LG805685235 or 805685235. Listed at 6 retailers as of October 28, 2026, with prices from £378 to £3,314, a £2,935 spread on the same certified stone. Helzberg Diamonds lists it at £3,314. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805685235
Dimensions12.07 × 8.85 × 5.56 mm
L/W Ratio1.36
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.07 mm8.85 mm3.78 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805685235
Side View
Table 61.0%Crown 37.1°Girdle: MED-THKPavilion 40.5°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £3,314 GBP|Low: £369 GBP|High: £3,314 GBP|Avg: £1,117 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 8£378 GBP
Retailer 9£401 GBP
Retailer 11£423 GBP
Retailer 14£614 GBP
Retailer 10£626 GBP
Retailer 12£665 GBP
Retailer 2£720 GBP
Retailer 5£836 GBP
Retailer 4£1,033 GBP
Retailer 3£1,100 GBP
Retailer 13£1,314 GBP
Retailer 6£1,653 GBP
Retailer 7£2,587 GBP
Helzberg Diamonds£3,314 GBP

34 data points across 14 retailers

6 retailers£378 GBP to £3,314 GBP

A
Cheapest Retailer
-
£378 GBP
$504 USD
Final sale: no returns
Retailer 2
-
£423 GBP
View
Price last confirmed 43 days ago
A
Retailer 3
-
£720 GBP
View
Retailer 4
-
£836 GBP
ZAR 17,994 ZAR
View
Price last confirmed 65 days ago
B
Retailer 5
-
£2,587 GBP
$3,445 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOGLMOLIJL · Oct 28
£3,314 GBP
$4,413 USD
View
5 more retailers have this diamond
Prices start from £378 GBPSave up to £2,935 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
£378 GBP