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Oval|Lab Grown|IGI

0.99ct F FL Oval Lab Grown Diamond

ID • F/FL • IGI LG815698143

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG815698143

Diamond specifications and retailer prices

From £344 GBP
As of November 3, 2026
Save £1,262 GBP (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,607 GBP at With Clarity · As of November 3, 2026
View at With Clarity

About this 0.99ct lab-grown oval diamond

This 0.99ct lab-grown oval sits in the just-under-one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815698143 or 815698143. Listed at 18 retailers as of November 3, 2026, with prices from £344 to £1,607, a £1,262 spread on the same certified stone. With Clarity lists it at £1,607. 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

0.99
Carat
F
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815698143
Dimensions8.40 × 5.47 × 3.44 mm
L/W Ratio1.54
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
8.40 mm5.47 mm0.99 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815698143
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.9%

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 3
Current: £707 GBP|Low: £344 GBP|High: £1,948 GBP|Avg: £835 GBP|-5.4%
Retailer 1
Retailer 2
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Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
With Clarity
November 3, 2026
Retailer 6£344 GBP
Retailer 8£386 GBP
Retailer 17£386 GBP
Retailer 9£427 GBP
Retailer 4£469 GBP
Retailer 15£525 GBP
Retailer 14£604 GBP
Retailer 12£661 GBP
Retailer 2£667 GBP
Retailer 1£707 GBP
Retailer 13£753 GBP
Retailer 10£775 GBP
Retailer 5£1,145 GBP
Retailer 16£1,148 GBP
Retailer 3£1,372 GBP
Retailer 7£1,394 GBP
Retailer 11£1,568 GBP
With Clarity£1,607 GBP

42 data points across 18 retailers

18 retailers£344 GBP to £1,607 GBP

A
Cheapest Retailer
-
£344 GBP
A
Retailer 2
-
£386 GBP
View
Final sale: no returns
A
Retailer 3
-
£386 GBP
View
Retailer 4
-
£427 GBP
View
Price last confirmed 19 days ago
A
Retailer 5
-
£427 GBP
View
A
Retailer 6
-
£469 GBP
View
B+
Retailer 7
-
£604 GBP
View
B+
Retailer 8
-
£661 GBP
View
B+
Retailer 9
-
£667 GBP
View
B+
Retailer 10
-
£707 GBP
View
B+
Retailer 11
-
£753 GBP
View
B+
Retailer 12
-
£775 GBP
View
B
Retailer 13
-
£1,145 GBP
View
B
Retailer 14
-
£1,148 GBP
View
B
Retailer 15
-
£1,372 GBP
View
B
Retailer 16
-
£1,394 GBP
View
B
Retailer 17
-
£1,568 GBP
View
Most Expensive
B
With Clarity
815698143 · Nov 3
£1,607 GBP
$2,155 USD
View
17 more retailers have this diamond
Prices start from £344 GBPSave up to £1,262 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
0.99ct Oval
£344 GBP