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Round|Lab Grown|IGI

3.05ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG835670164

Shape and cutting style on the report: Round brilliant

Certificate IGI LG835670164

Diamond specifications and retailer prices

From £449 GBP
As of November 3, 2026
Save £4,433 GBP (91%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,882 GBP at Brilliant Earth · As of November 4, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG835670164 or 835670164. Listed at 21 retailers as of November 3, 2026, with prices from £449 to £4,882, a £4,433 spread on the same certified stone. Brilliant Earth lists it at £4,882. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.05
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835670164
Dimensions9.32 × 9.38 × 5.71 mm
L/W Ratio1.01
Girdle conditionFaceted
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
9.32 mm9.38 mm3.05 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835670164
Side View
Table 57.0%Crown 34.3°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.1%

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 3
Current: £4,882 GBP|Low: £449 GBP|High: £5,333 GBP|Avg: £1,332 GBP|-8.5%
Brilliant Earth
Retailer 2
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Retailer 21
November 5, 2026
Retailer 20£449 GBP
Retailer 11£502 GBP
Retailer 10£503 GBP
Retailer 4£556 GBP
Retailer 15£618 GBP
Retailer 16£652 GBP
Retailer 5£784 GBP
Retailer 3£813 GBP
Retailer 21£847 GBP
Retailer 13£859 GBP
Retailer 19£1,176 GBP
Retailer 18£1,194 GBP
Retailer 17£1,208 GBP
Retailer 12£1,313 GBP
Retailer 7£1,464 GBP
Retailer 8£1,565 GBP
Retailer 9£1,690 GBP
Retailer 14£1,799 GBP
Retailer 6£1,844 GBP
Retailer 2£2,410 GBP
Brilliant Earth£4,882 GBP

11 data points across 21 retailers

21 retailers£449 GBP to £4,882 GBP

A
Cheapest Retailer
-
£449 GBP
A
Retailer 2
-
£502 GBP
View
Final sale: no returns
A
Retailer 3
-
£503 GBP
View
A
Retailer 4
-
£556 GBP
View
A
Retailer 5
-
£618 GBP
View
A
Retailer 6
-
£652 GBP
View
A
Retailer 7
-
£784 GBP
View
A
Retailer 8
-
£813 GBP
View
A
Retailer 9
-
£847 GBP
View
A
Retailer 10
-
£859 GBP
View
A
Retailer 11
-
£1,176 GBP
View
A
Retailer 12
-
£1,194 GBP
View
A
Retailer 13
-
£1,208 GBP
View
A
Retailer 14
-
£1,313 GBP
View
B+
Retailer 15
-
£1,464 GBP
View
B+
Retailer 16
-
£1,565 GBP
View
B+
Retailer 17
-
£1,690 GBP
View
B+
Retailer 18
-
£1,799 GBP
View
B+
Retailer 19
-
£1,844 GBP
View
B+
Retailer 20
-
£2,410 GBP
View
Most Expensive
B
Brilliant Earth
22318432A · Nov 4
£4,882 GBP
$6,590 USD
View
20 more retailers have this diamond
Prices start from £449 GBPSave up to £4,433 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
£449 GBP