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Oval|Lab Grown|IGI

0.78ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG780650968

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780650968

Diamond specifications and retailer prices

From £146 GBP
As of November 3, 2026
Save £735 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £881 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780650968 or 780650968. Listed at 21 retailers as of November 1, 2026, with prices from £146 to £881, a £735 spread on the same certified stone. Reve Diamonds lists it at £881. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.78
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780650968
Dimensions7.68 × 5.20 × 3.18 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizePointed
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
7.68 mm5.20 mm0.78 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780650968
Side View
Table 60.0%Crown 35.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £328 GBP|Low: £138 GBP|High: £881 GBP|Avg: £371 GBP|+4.3%
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Retailer 19
Reve Diamonds
November 4, 2026
Retailer 6£146 GBP
Retailer 13£163 GBP
Retailer 3£170 GBP
Retailer 9£178 GBP
Retailer 17£181 GBP
Retailer 18£255 GBP
Retailer 15£307 GBP
Retailer 1£328 GBP
Retailer 12£329 GBP
Retailer 10£336 GBP
Retailer 2£376 GBP
Retailer 5£384 GBP
Retailer 7£407 GBP
Retailer 16£460 GBP
Retailer 4£462 GBP
Retailer 19£583 GBP
Retailer 8£623 GBP
Retailer 11£634 GBP
Retailer 14£847 GBP
Reve Diamonds£881 GBP

36 data points across 20 retailers

21 retailers£146 GBP to £881 GBP

A
Cheapest Retailer
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£146 GBP
A
Retailer 2
-
£163 GBP
View
Final sale: no returns
A
Retailer 3
-
£170 GBP
View
Retailer 4
-
£178 GBP
View
Price last confirmed 10 days ago
Retailer 5
-
£178 GBP
View
Price last confirmed 21 days ago
A
Retailer 6
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£181 GBP
View
A
Retailer 7
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£255 GBP
View
A
Retailer 8
-
£307 GBP
View
A
Retailer 9
-
£328 GBP
View
A
Retailer 10
-
£329 GBP
View
A
Retailer 11
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£336 GBP
View
B+
Retailer 12
-
£376 GBP
View
B+
Retailer 13
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£384 GBP
View
B+
Retailer 14
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£407 GBP
View
B+
Retailer 15
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£460 GBP
View
Retailer 16
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£462 GBP
View
Price last confirmed 8 days ago
B+
Retailer 17
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£583 GBP
View
B
Retailer 18
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£623 GBP
View
B
Retailer 19
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£634 GBP
View
B
Retailer 20
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£847 GBP
View
Most Expensive
B
Reve Diamonds
7C37C18D1 · Nov 1
£881 GBP
$1,181 USD
View
20 more retailers have this diamond
Prices start from £146 GBPSave up to £735 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
£146 GBP