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Round|Lab Grown|IGI

3.10ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG605356205

Shape and cutting style on the report: Round brilliant

Certificate IGI LG605356205

Diamond specifications and retailer prices

From £849 GBP
As of November 3, 2026
Save £2,597 GBP (75%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,393 GBP at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

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 LG605356205 or 605356205. Listed at 23 retailers as of November 3, 2026, with a 306% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605356205
Dimensions9.28 × 9.22 × 5.77 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
9.28 mm9.22 mm3.10 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605356205
Side View
Table 56.0%Crown 35.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.4%

Caratlytics Score

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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 3
Current: £1,846 GBP|Low: £815 GBP|High: £7,610 GBP|Avg: £2,196 GBP
NZ Jewellers
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
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Retailer 17
Retailer 18
November 5, 2026
Retailer 17£849 GBP
Retailer 8£950 GBP
Retailer 18£984 GBP
Retailer 12£1,115 GBP
Retailer 6£1,174 GBP
Retailer 11£1,408 GBP
Retailer 13£1,501 GBP
Retailer 5£1,565 GBP
Retailer 4£1,747 GBP
NZ Jewellers£1,846 GBP
Retailer 7£1,940 GBP
Retailer 15£2,223 GBP
Retailer 14£2,288 GBP
Retailer 3£2,851 GBP
Retailer 9£3,120 GBP
Retailer 2£3,155 GBP
Retailer 10£3,446 GBP
Retailer 16£4,304 GBP

45 data points across 18 retailers

23 retailers£849 GBP to £3,446 GBP

A
Cheapest Retailer
-
£849 GBP
A
Retailer 2
-
£950 GBP
View
Final sale: no returns
Retailer 3
-
£984 GBP
View
Price last confirmed 19 days ago
A
Retailer 4
-
£984 GBP
View
A
Retailer 5
-
£1,115 GBP
View
A
Retailer 6
-
£1,174 GBP
View
A
Retailer 7
-
£1,408 GBP
View
B+
Retailer 8
-
£1,501 GBP
View
B+
Retailer 9
-
£1,565 GBP
View
B+
Retailer 10
-
£1,747 GBP
View
B+
Retailer 11
-
£1,846 GBP
View
B+
Retailer 12
-
£1,940 GBP
View
B+
Retailer 13
-
£2,223 GBP
View
B+
Retailer 14
-
£2,288 GBP
View
B+
Retailer 15
-
£2,851 GBP
View
Retailer 16
-
£3,031 GBP
View
Price last confirmed 43 days ago
B
Retailer 17
-
£3,120 GBP
View
B+
Retailer 18
-
£3,155 GBP
View
Retailer 19
-
£3,176 GBP
View
Price last confirmed 43 days ago
B
Retailer 20
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£3,446 GBP
View
Retailer 21
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£3,467 GBP
View
Price last confirmed 41 days ago
Retailer 22
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£4,304 GBP
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
99283b0e-1809-4305-880b-79748e85e333 · Sep 21
£4,393 GBP
$5,931 USD
View
Price last confirmed 44 days ago
22 more retailers have this diamond
Prices start from £849 GBPSave up to £2,597 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
£849 GBP