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Asscher|Lab Grown|IGI

3.09ct F IF Asscher Lab Grown Diamond

EX • F/IF • IGI LG831606325

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG831606325

Diamond specifications and retailer prices

From £1,280 GBP
As of November 4, 2026
Save £5,631 GBP (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £6,911 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 3.09ct lab-grown asscher diamond

This 3.09ct lab-grown asscher 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 LG831606325 or 831606325. Listed at 18 retailers as of November 4, 2026, with prices from £1,280 to £6,911, a £5,631 spread on the same certified stone. Brilliant Earth lists it at £6,911. 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

3.09
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831606325
Dimensions8.16 × 8.08 × 5.20 mm
L/W Ratio1.01
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
8.16 mm8.08 mm3.09 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831606325
Side View
Table 63.0%Crown 33.4°Girdle: MediumPavilion 40.3°Culet: NoneDepth 64.4%

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 4
Current: £6,911 GBP|Low: £1,280 GBP|High: £6,911 GBP|Avg: £3,084 GBP
Brilliant Earth
Retailer 2
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Retailer 12
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Retailer 18
November 5, 2026
Retailer 5£1,280 GBP
Retailer 4£1,452 GBP
Retailer 12£1,456 GBP
Retailer 2£1,856 GBP
Retailer 15£1,896 GBP
Retailer 3£2,093 GBP
Retailer 14£2,122 GBP
Retailer 8£2,418 GBP
Retailer 17£2,995 GBP
Retailer 13£3,089 GBP
Retailer 18£3,206 GBP
Retailer 11£3,408 GBP
Retailer 10£3,696 GBP
Retailer 16£3,788 GBP
Retailer 7£4,174 GBP
Retailer 6£4,433 GBP
Retailer 9£4,662 GBP
Brilliant Earth£6,911 GBP

42 data points across 18 retailers

18 retailers£1,280 GBP to £6,911 GBP

A
Cheapest Retailer
-
£1,280 GBP
Final sale: no returns
A
Retailer 2
-
£1,452 GBP
View
A
Retailer 3
-
£1,456 GBP
View
A
Retailer 4
-
£1,856 GBP
View
A
Retailer 5
-
£1,896 GBP
View
Retailer 6
-
£2,093 GBP
View
Price last confirmed 7 days ago
A
Retailer 7
-
£2,122 GBP
View
A
Retailer 8
-
£2,418 GBP
View
B+
Retailer 9
-
£2,995 GBP
View
B+
Retailer 10
-
£3,089 GBP
View
B+
Retailer 11
-
£3,206 GBP
View
B+
Retailer 12
-
£3,408 GBP
View
Retailer 13
-
£3,696 GBP
View
Price last confirmed 28 days ago
B+
Retailer 14
-
£3,788 GBP
View
Retailer 15
-
£4,174 GBP
View
Price last confirmed 17 days ago
B
Retailer 16
-
£4,433 GBP
View
B
Retailer 17
-
£4,662 GBP
View
Most Expensive
B
Brilliant Earth
22465058A · Nov 4
£6,911 GBP
$9,330 USD
View
17 more retailers have this diamond
Prices start from £1,280 GBPSave up to £5,631 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
3.09ct Asscher
£1,280 GBP