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Oval|Lab Grown|IGI

0.81ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG499115894

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG499115894

Diamond specifications and retailer prices

From £321 GBP
$430 USD
As of October 31, 2026
Save £1,175 GBP (79%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,496 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.81ct lab-grown oval diamond

This 0.81ct lab-grown oval sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499115894 or 499115894. Listed at 12 retailers as of October 31, 2026, with prices from £321 to £1,496, a £1,175 spread on the same certified stone. NZ Jewellers lists it at £1,496. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.81
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499115894
Dimensions7.50 × 5.25 × 3.19 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.50 mm5.25 mm0.81 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499115894
Side View
Table 56.5%Crown 34.4°Girdle: MediumPavilion 39.7°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £891 GBP|Low: £321 GBP|High: £2,503 GBP|Avg: £877 GBP|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5£321 GBP
Retailer 7£459 GBP
Retailer 10£513 GBP
Retailer 2£569 GBP
Retailer 8£569 GBP
Retailer 9£872 GBP
Retailer 1£891 GBP
Retailer 4£940 GBP
Retailer 6£1,412 GBP
Retailer 3£2,471 GBP

44 data points across 10 retailers

12 retailers£321 GBP to £1,496 GBP

B+
Cheapest Retailer
-
£321 GBP
$430 USD
B
Retailer 2
-
£459 GBP
$615 USD
View
B
Retailer 3
-
£513 GBP
$687 USD
View
Final sale: no returns
B
Retailer 4
-
£514 GBP
$689 USD
View
B
Retailer 5
-
£569 GBP
$762 USD
View
Retailer 6
-
£569 GBP
$762 USD
View
Price last confirmed 16 days ago
B
Retailer 7
-
£872 GBP
$1,168 USD
View
B
Retailer 8
-
£891 GBP
View
B
Retailer 9
-
£940 GBP
€1,200 EUR
View
B
Retailer 10
-
£1,412 GBP
$1,892 USD
View
Most Expensive
B
NZ Jewellers
f9503c46-dcd6-48ac-8446-96fcf6606028 · Oct 31
£1,496 GBP
$2,005 USD
View
10 more retailers have this diamond
Prices start from £321 GBPSave up to £1,175 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.

B+
0.81ct Oval
£321 GBP