CaratHunter
Plans
Oval|Lab Grown|IGI

3.78ct G VVS2 Oval Lab Grown Diamond

VG • G/VVS2 • IGI LG830677220

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG830677220

Diamond specifications and retailer prices

From £520 GBP
HK$5,400 HKD
As of October 29, 2026
Save £1,466 GBP (74%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,986 GBP at MOH London · As of October 29, 2026
View at MOH London

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 very-good cut grade and certified by IGI LG830677220 or 830677220. Listed at 8 retailers as of October 29, 2026, with prices from £520 to £1,986, a £1,466 spread on the same certified stone. MOH London lists it at £1,986. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.78
Carat
G
Colour
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830677220
Dimensions12.51 × 8.96 × 5.45 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.51 mm8.96 mm3.78 ctG / VVS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830677220
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,986 GBP|Low: £520 GBP|High: £1,999 GBP|Avg: £1,002 GBP|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 8£520 GBP
Retailer 4£641 GBP
Retailer 5£708 GBP
Retailer 3£756 GBP
Retailer 2£784 GBP
Retailer 6£1,122 GBP
Retailer 7£1,540 GBP
MOH London£1,986 GBP

40 data points across 8 retailers

8 retailers£520 GBP to £1,986 GBP

A
Cheapest Retailer
-
£520 GBP
HK$5,400 HKD
B+
Retailer 2
-
£641 GBP
$852 USD
View
A
Retailer 3
-
£708 GBP
$941 USD
View
A
Retailer 4
-
£756 GBP
€957 EUR
View
Price last confirmed 10 days ago
A
Retailer 5
-
£784 GBP
View
B+
Retailer 6
-
£1,122 GBP
$1,491 USD
View
B+
Retailer 7
-
£1,540 GBP
$2,046 USD
View
Most Expensive
B
MOH London
LG830677220 · Oct 29
£1,986 GBP
View
7 more retailers have this diamond
Prices start from £520 GBPSave up to £1,466 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
£520 GBP