Oval|Lab Grown|IGI

0.40ct F IF Oval Lab Grown Diamond

EX • F/IF • IGI LG770699910

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG770699910

Diamond specifications and retailer prices

From £122 GBP
$164 USD
As of November 1, 2026
Save £661 GBP (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,000 GBP at Kay Jewelers · As of November 1, 2026
View at Kay Jewelers

About this 0.4ct lab-grown oval diamond

This 0.4ct lab-grown oval sits in the sub-half-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG770699910 or 770699910. Listed at 18 retailers as of November 1, 2026, with a 540% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.40
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770699910
Dimensions5.98 × 4.02 × 2.61 mm
L/W Ratio1.49
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
5.98 mm4.02 mm0.40 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG770699910
Side View
Table 59.0%Crown 36.8°Girdle: MED-STKPavilion 41°Culet: NoneDepth 64.9%

Caratlytics Score

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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: £1,000 GBP|Low: £119 GBP|High: £1,075 GBP|Avg: £463 GBP|-6.9%
Kay Jewelers
Retailer 2
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
November 1, 2026
Retailer 14£122 GBP
Retailer 18£143 GBP
Retailer 9£145 GBP
Retailer 6£153 GBP
Retailer 8£195 GBP
Retailer 7£220 GBP
Retailer 5£284 GBP
Retailer 2£305 GBP
Retailer 10£311 GBP
Retailer 12£335 GBP
Retailer 16£370 GBP
Retailer 17£428 GBP
Retailer 3£543 GBP
Retailer 15£669 GBP
Retailer 11£784 GBP
Retailer 4£876 GBP
Kay Jewelers£1,000 GBP
Retailer 13£1,000 GBP

32 data points across 18 retailers

18 retailers£122 GBP to £784 GBP

A
Cheapest Retailer
-
£122 GBP
$164 USD
Retailer 2
-
£123 GBP
$165 USD
View
Price last confirmed 14 days ago
Retailer 3
-
£143 GBP
$191 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
£145 GBP
$194 USD
View
Retailer 5
-
£153 GBP
$205 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
£195 GBP
$261 USD
View
B+
Retailer 7
-
£220 GBP
$295 USD
View
B+
Retailer 8
-
£284 GBP
$380 USD
View
B+
Retailer 9
-
£305 GBP
ZAR 6,597 ZAR
View
B+
Retailer 10
-
£335 GBP
€427 EUR
View
B
Retailer 11
-
£370 GBP
$496 USD
View
B
Retailer 12
-
£428 GBP
CA$797 CAD
View
Retailer 13
-
£543 GBP
$727 USD
View
Price last confirmed 14 days ago
B
Retailer 14
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£669 GBP
$896 USD
View
B
Retailer 15
-
£784 GBP
View
Retailer 16
-
£876 GBP
View
Price last confirmed 13 days ago
Retailer 17
-
£1,000 GBP
$1,340 USD
View
Price under review
Most Expensive
Kay Jewelers
258614131 · Nov 1
£1,000 GBP
$1,340 USD
View
Price under review
17 more retailers have this diamond
Prices start from £122 GBPSave up to £661 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
0.40ct Oval
£122 GBP