Oval|Lab Grown|IGI

3.78ct G VVS2 Oval Lab Grown Diamond

EX • G/VVS2 • IGI LG815620470

Shape and cutting style on the report: Antique oval cut

Certificate IGI LG815620470

Diamond specifications and retailer prices

From £1,207 GBP
$1,607 USD
As of October 29, 2026
Save £408 GBP (25%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,614 GBP at Loose Grown Diamond · As of October 28, 2026
View at Loose Grown Diamond

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 LG815620470 or 815620470. Listed at 3 retailers as of October 28, 2026, with prices from £1,207 to £1,614, a £408 spread on the same certified stone. Loose Grown Diamond lists it at £1,614. 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 angle36.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815620470
Dimensions14.72 × 8.06 × 4.85 mm
L/W Ratio1.83
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.72 mm8.06 mm3.78 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815620470
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.2%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: £1,614 GBP|Low: £365 GBP|High: £3,559 GBP|Avg: £1,401 GBP|+130.7%
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
September 18, 2026
Retailer 10£665 GBP
Retailer 7£974 GBP
Retailer 4£998 GBP
Retailer 2£1,207 GBP
Retailer 9£1,357 GBP
Retailer 3£1,384 GBP
Loose Grown Diamond£1,614 GBP
Retailer 8£1,648 GBP
Retailer 5£1,724 GBP
Retailer 11£1,836 GBP
Retailer 6£3,559 GBP

12 data points across 11 retailers

3 retailers£1,207 GBP to £1,614 GBP

Retailer 1
-
£998 GBP
$1,329 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
£1,207 GBP
$1,607 USD
View
Final sale: no returns
Most Expensive
B+
Loose Grown Diamond
815620470 · Oct 28
£1,614 GBP
$2,150 USD
View
2 more retailers have this diamond
Prices start from £1,207 GBPSave up to £408 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.

B+
3.78ct Oval
£1,207 GBP