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Round|Lab Grown|GIA

3.05ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • GIA 6472855896

Certificate GIA 6472855896

Diamond specifications and retailer prices

From £718 GBP
As of November 4, 2026
Save £2,358 GBP (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,076 GBP at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

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 GIA 6472855896. Listed at 13 retailers as of November 4, 2026, with prices from £718 to £3,076, a £2,358 spread on the same certified stone. Brilliant Earth lists it at £3,076. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 6472855896
Dimensions9.40 × 9.42 × 5.62 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
9.40 mm9.42 mm3.05 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6472855896
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.8%

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: £3,076 GBP|Low: £718 GBP|High: £3,076 GBP|Avg: £1,567 GBP|+2.5%
Brilliant Earth
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 10£718 GBP
Retailer 3£737 GBP
Retailer 11£873 GBP
Retailer 9£973 GBP
Retailer 8£999 GBP
Retailer 5£1,201 GBP
Retailer 2£1,242 GBP
Retailer 6£1,597 GBP
Retailer 4£2,152 GBP
Retailer 7£2,800 GBP
Retailer 12£2,924 GBP
Brilliant Earth£3,076 GBP

43 data points across 12 retailers

13 retailers£718 GBP to £3,076 GBP

A
Cheapest Retailer
-
£718 GBP
Final sale: no returns
A
Retailer 2
-
£737 GBP
View
B+
Retailer 3
-
£873 GBP
View
B+
Retailer 4
-
£973 GBP
View
B+
Retailer 5
-
£999 GBP
View
B+
Retailer 6
-
£1,201 GBP
View
B+
Retailer 7
-
£1,242 GBP
View
B
Retailer 8
-
£1,597 GBP
View
B
Retailer 9
-
£2,152 GBP
View
B
Retailer 10
-
£2,308 GBP
View
Retailer 11
-
£2,800 GBP
View
Price last confirmed 8 days ago
B
Retailer 12
-
£2,924 GBP
View
Most Expensive
B
Brilliant Earth
8537761A · Nov 5
£3,076 GBP
$4,140 USD
View
12 more retailers have this diamond
Prices start from £718 GBPSave up to £2,358 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
£718 GBP