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Round|Lab Grown|IGI

3.05ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG726528717

Shape and cutting style on the report: Round brilliant

Certificate IGI LG726528717

Diamond specifications and retailer prices

From £294 GBP
As of November 4, 2026
Save £980 GBP (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,274 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3.05ct lab-grown round diamond

This 3.05ct lab-grown round 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 LG726528717 or 726528717. Listed at 12 retailers as of November 4, 2026, with prices from £294 to £1,274, a £980 spread on the same certified stone. MOH London lists it at £1,274. 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 angle33.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG726528717
Dimensions9.39 × 9.37 × 5.65 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.39 mm9.37 mm3.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG726528717
Side View
Table 60.0%Crown 33.2°GirdlePavilion 40.9°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,274 GBP|Low: £180 GBP|High: £1,284 GBP|Avg: £738 GBP|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3£294 GBP
Retailer 5£423 GBP
Retailer 9£438 GBP
Retailer 6£495 GBP
Retailer 8£540 GBP
Retailer 12£562 GBP
Retailer 11£704 GBP
Retailer 4£747 GBP
Retailer 10£959 GBP
Retailer 2£1,015 GBP
Retailer 7£1,199 GBP
MOH London£1,274 GBP

20 data points across 12 retailers

12 retailers£294 GBP to £1,274 GBP

A
Cheapest Retailer
-
£294 GBP
Final sale: no returns
A
Retailer 2
-
£423 GBP
View
A
Retailer 3
-
£438 GBP
View
B+
Retailer 4
-
£495 GBP
View
A
Retailer 5
-
£540 GBP
View
A
Retailer 6
-
£562 GBP
View
B+
Retailer 7
-
£704 GBP
View
B+
Retailer 8
-
£747 GBP
View
B+
Retailer 9
-
£959 GBP
View
B
Retailer 10
-
£1,015 GBP
View
B
Retailer 11
-
£1,199 GBP
View
Most Expensive
B
MOH London
LG726528717 · Nov 5
£1,274 GBP
View
11 more retailers have this diamond
Prices start from £294 GBPSave up to £980 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 Round
£294 GBP