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Oval|Lab Grown|IGI

0.78ct D FL Oval Lab Grown Diamond

VG • D/FL • IGI LG816658334

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG816658334

Diamond specifications and retailer prices

From £338 GBP
$453 USD
As of November 1, 2026
Save £1,333 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,034 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.78ct lab-grown oval diamond

This 0.78ct lab-grown oval sits in the just-under-one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816658334 or 816658334. Listed at 10 retailers as of October 31, 2026, with a 395% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.78
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816658334
Dimensions7.43 × 5.12 × 3.21 mm
L/W Ratio1.45
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.43 mm5.12 mm0.78 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816658334
Side View
Table 60.0%Crown 34.4°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 62.7%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £2,034 GBP|Low: £338 GBP|High: £2,086 GBP|Avg: £921 GBP|-2.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9£338 GBP
Retailer 4£425 GBP
Retailer 8£484 GBP
Retailer 10£592 GBP
Retailer 6£650 GBP
Retailer 3£715 GBP
Retailer 2£789 GBP
Retailer 7£1,386 GBP
Retailer 5£1,670 GBP
MOH London£2,034 GBP

23 data points across 10 retailers

10 retailers£338 GBP to £1,670 GBP

A
Cheapest Retailer
-
£338 GBP
$453 USD
B+
Retailer 2
-
£425 GBP
$570 USD
View
B+
Retailer 3
-
£484 GBP
$650 USD
View
B
Retailer 4
-
£592 GBP
$794 USD
View
B
Retailer 5
-
£650 GBP
$872 USD
View
B
Retailer 6
-
£715 GBP
$960 USD
View
B
Retailer 7
-
£789 GBP
€1,008 EUR
View
B
Retailer 8
-
£1,386 GBP
CA$2,583 CAD
View
B
Retailer 9
-
£1,670 GBP
$2,241 USD
View
Most Expensive
MOH London
LG816658334 · Nov 1
£2,034 GBP
View
Price under review
9 more retailers have this diamond
Prices start from £338 GBPSave up to £1,333 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
0.78ct Oval
£338 GBP