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Oval|Lab Grown|IGI

3.01ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG678584159

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG678584159

Diamond specifications and retailer prices

From £313 GBP
$419 USD
As of November 1, 2026
Save £1,478 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,791 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.01ct lab-grown oval diamond

This 3.01ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG678584159 or 678584159. Listed at 16 retailers as of October 31, 2026, with prices from £313 to £1,791, a £1,478 spread on the same certified stone. Brilliant Earth lists it at £1,791. 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

3.01
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678584159
Dimensions11.63 × 8.21 × 5.05 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.63 mm8.21 mm3.01 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG678584159
Side View
Table 58.0%Crown 32.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.5%

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: £1,791 GBP|Low: £313 GBP|High: £1,806 GBP|Avg: £758 GBP|-0.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 5£313 GBP
Retailer 4£350 GBP
Retailer 11£361 GBP
Retailer 12£387 GBP
Retailer 8£405 GBP
Retailer 16£496 GBP
Retailer 14£521 GBP
Retailer 13£612 GBP
Retailer 2£638 GBP
Retailer 6£677 GBP
Retailer 3£761 GBP
Retailer 10£929 GBP
Retailer 15£1,246 GBP
Retailer 7£1,388 GBP
Retailer 9£1,424 GBP
Brilliant Earth£1,791 GBP

46 data points across 16 retailers

16 retailers£313 GBP to £1,791 GBP

A
Cheapest Retailer
-
£313 GBP
$419 USD
A
Retailer 2
-
£350 GBP
$469 USD
View
A
Retailer 3
-
£361 GBP
$484 USD
View
Final sale: no returns
A
Retailer 4
-
£387 GBP
$519 USD
View
Retailer 5
-
£405 GBP
$542 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£496 GBP
$665 USD
View
B+
Retailer 7
-
£521 GBP
$698 USD
View
A
Retailer 8
-
£612 GBP
$820 USD
View
A
Retailer 9
-
£638 GBP
View
A
Retailer 10
-
£677 GBP
€864 EUR
View
B+
Retailer 11
-
£761 GBP
$1,019 USD
View
B+
Retailer 12
-
£929 GBP
$1,245 USD
View
B+
Retailer 13
-
£1,246 GBP
$1,669 USD
View
B
Retailer 14
-
£1,388 GBP
$1,860 USD
View
B
Retailer 15
-
£1,424 GBP
View
Most Expensive
B
Brilliant Earth
17470537A · Oct 31
£1,791 GBP
$2,400 USD
View
15 more retailers have this diamond
Prices start from £313 GBPSave up to £1,478 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
3.01ct Oval
£313 GBP