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Oval|Lab Grown|IGI

3.05ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG601390194

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG601390194

Diamond specifications and retailer prices

From £395 GBP
As of November 3, 2026
Save £2,922 GBP (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,317 GBP at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 3.05ct lab-grown oval diamond

This 3.05ct 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 LG601390194 or 601390194. Listed at 21 retailers as of November 3, 2026, with prices from £395 to £3,317, a £2,922 spread on the same certified stone. Brilliant Earth lists it at £3,317. 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

3.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG601390194
Dimensions11.55 × 8.24 × 5.17 mm
L/W Ratio1.40
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
11.55 mm8.24 mm3.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG601390194
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £3,317 GBP|Low: £380 GBP|High: £3,317 GBP|Avg: £1,051 GBP
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 17
November 6, 2026
Retailer 16£395 GBP
Retailer 15£442 GBP
Retailer 3£490 GBP
Retailer 7£490 GBP
Retailer 5£607 GBP
Retailer 14£635 GBP
Retailer 6£693 GBP
Retailer 9£699 GBP
Retailer 2£749 GBP
Retailer 10£750 GBP
Retailer 13£1,077 GBP
Retailer 4£1,264 GBP
Retailer 17£1,289 GBP
Retailer 11£1,386 GBP
Retailer 8£1,633 GBP
Retailer 12£2,046 GBP
Brilliant Earth£3,317 GBP

45 data points across 17 retailers

21 retailers£395 GBP to £3,317 GBP

A
Cheapest Retailer
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£395 GBP
A
Retailer 2
-
£442 GBP
View
A
Retailer 3
-
£490 GBP
View
Final sale: no returns
A
Retailer 4
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£490 GBP
View
A
Retailer 5
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£564 GBP
View
A
Retailer 6
-
£635 GBP
View
A
Retailer 7
-
£693 GBP
View
A
Retailer 8
-
£699 GBP
View
A
Retailer 9
-
£749 GBP
View
A
Retailer 10
-
£750 GBP
View
Retailer 11
-
£758 GBP
View
Price last confirmed 22 days ago
A
Retailer 12
-
£806 GBP
View
B+
Retailer 13
-
£1,077 GBP
View
B+
Retailer 14
-
£1,153 GBP
View
B+
Retailer 15
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£1,264 GBP
View
B+
Retailer 16
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£1,289 GBP
View
B+
Retailer 17
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£1,386 GBP
View
B
Retailer 18
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£1,591 GBP
View
B
Retailer 19
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£1,633 GBP
View
B
Retailer 20
-
£2,046 GBP
View
Most Expensive
B
Brilliant Earth
8254016A · Nov 5
£3,317 GBP
$4,440 USD
View
20 more retailers have this diamond
Prices start from £395 GBPSave up to £2,922 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
3.05ct Oval
£395 GBP