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Round|Lab Grown|IGI

3.10ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG839676252

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839676252

Diamond specifications and retailer prices

From £654 GBP
As of November 4, 2026
Save £4,309 GBP (87%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,963 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 3.1ct lab-grown round diamond

This 3.1ct 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 LG839676252 or 839676252. Listed at 14 retailers as of November 3, 2026, with prices from £654 to £4,963, a £4,309 spread on the same certified stone. Brilliant Earth lists it at £4,963. 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

3.10
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839676252
Dimensions9.35 × 9.38 × 5.73 mm
L/W Ratio1.00
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
9.35 mm9.38 mm3.10 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839676252
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
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 4
Current: £4,963 GBP|Low: £654 GBP|High: £4,963 GBP|Avg: £1,588 GBP
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
November 5, 2026
Retailer 5£654 GBP
Retailer 7£666 GBP
Retailer 9£693 GBP
Retailer 2£885 GBP
Retailer 10£909 GBP
Retailer 8£916 GBP
Retailer 14£1,267 GBP
Retailer 11£1,302 GBP
Retailer 13£1,434 GBP
Retailer 6£1,858 GBP
Retailer 4£1,882 GBP
Retailer 12£2,364 GBP
Retailer 3£4,144 GBP
Brilliant Earth£4,963 GBP

30 data points across 14 retailers

14 retailers£654 GBP to £4,963 GBP

A
Cheapest Retailer
-
£654 GBP
A
Retailer 2
-
£666 GBP
View
A
Retailer 3
-
£693 GBP
View
A
Retailer 4
-
£885 GBP
View
A
Retailer 5
-
£909 GBP
View
A
Retailer 6
-
£916 GBP
View
A
Retailer 7
-
£1,267 GBP
View
A
Retailer 8
-
£1,302 GBP
View
A
Retailer 9
-
£1,434 GBP
View
B+
Retailer 10
-
£1,858 GBP
View
B+
Retailer 11
-
£1,882 GBP
View
B+
Retailer 12
-
£2,364 GBP
View
Retailer 13
-
£4,144 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21711104A · Nov 3
£4,963 GBP
$6,700 USD
View
13 more retailers have this diamond
Prices start from £654 GBPSave up to £4,309 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
3.10ct Round
£654 GBP