CaratHunter
Plans
Round|Lab Grown|IGI

3.10ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG746506356

Shape and cutting style on the report: Round brilliant

Certificate IGI LG746506356

Diamond specifications and retailer prices

From £490 GBP
As of November 3, 2026
Save £4,451 GBP (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,941 GBP at Brilliant Earth · As of November 4, 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 LG746506356 or 746506356. Listed at 13 retailers as of November 3, 2026, with prices from £490 to £4,941, a £4,451 spread on the same certified stone. Brilliant Earth lists it at £4,941. 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 angle35.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG746506356
Dimensions9.33 × 9.40 × 5.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
9.33 mm9.40 mm3.10 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG746506356
Side View
Table 58.0%Crown 35.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.5%

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: £4,941 GBP|Low: £452 GBP|High: £5,830 GBP|Avg: £1,979 GBP|-15.2%
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
Retailer 15
Retailer 16
November 5, 2026
Retailer 14£490 GBP
Retailer 15£533 GBP
Retailer 16£804 GBP
Retailer 4£927 GBP
Retailer 13£930 GBP
Retailer 7£1,279 GBP
Retailer 11£1,370 GBP
Retailer 12£1,416 GBP
Retailer 6£1,463 GBP
Retailer 5£1,763 GBP
Retailer 9£2,073 GBP
Retailer 8£2,102 GBP
Retailer 2£2,456 GBP
Retailer 10£3,515 GBP
Retailer 3£4,348 GBP
Brilliant Earth£4,941 GBP

30 data points across 16 retailers

13 retailers£490 GBP to £4,941 GBP

A
Cheapest Retailer
-
£490 GBP
A
Retailer 2
-
£533 GBP
View
A
Retailer 3
-
£804 GBP
View
A
Retailer 4
-
£927 GBP
View
A
Retailer 5
-
£930 GBP
View
A
Retailer 6
-
£1,370 GBP
View
B+
Retailer 7
-
£1,416 GBP
View
B+
Retailer 8
-
£1,463 GBP
View
B+
Retailer 9
-
£1,763 GBP
View
B+
Retailer 10
-
£2,456 GBP
View
B
Retailer 11
-
£3,515 GBP
View
B
Retailer 12
-
£4,348 GBP
View
Most Expensive
B
Brilliant Earth
21405998Y · Nov 4
£4,941 GBP
$6,670 USD
View
12 more retailers have this diamond
Prices start from £490 GBPSave up to £4,451 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
£490 GBP