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Radiant|Lab Grown|IGI

3.31ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG804659527

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG804659527

Diamond specifications and retailer prices

From £1,897 GBP
$2,526 USD
As of October 29, 2026
Save £7,219 GBP (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £9,116 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.31ct lab-grown radiant diamond

This 3.31ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804659527 or 804659527. Listed at 14 retailers as of October 29, 2026, with prices from £1,897 to £9,116, a £7,219 spread on the same certified stone. Brilliant Earth lists it at £9,116. 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

3.31
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659527
Dimensions10.50 × 7.65 × 4.95 mm
L/W Ratio1.37
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
10.50 mm7.65 mm3.31 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659527
Side View
Table 62.0%Crown 43.6°Girdle: MediumPavilion 33.6°Culet: NoneDepth 64.7%

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: Oct 29
Current: £9,116 GBP|Low: £1,897 GBP|High: £9,116 GBP|Avg: £4,661 GBP|+1.1%
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
October 29, 2026
Retailer 11£1,897 GBP
Retailer 13£2,192 GBP
Retailer 7£2,462 GBP
Retailer 10£2,709 GBP
Retailer 12£2,854 GBP
Retailer 6£2,986 GBP
Retailer 2£4,167 GBP
Retailer 9£4,703 GBP
Retailer 3£4,835 GBP
Retailer 8£4,874 GBP
Retailer 14£5,132 GBP
Retailer 5£6,277 GBP
Retailer 4£6,945 GBP
Brilliant Earth£9,116 GBP

39 data points across 14 retailers

14 retailers£1,897 GBP to £9,116 GBP

A
Cheapest Retailer
-
£1,897 GBP
$2,526 USD
A
Retailer 2
-
£2,192 GBP
HK$22,800 HKD
View
A
Retailer 3
-
£2,462 GBP
View
A
Retailer 4
-
£2,709 GBP
$3,608 USD
View
A
Retailer 5
-
£2,854 GBP
$3,801 USD
View
B+
Retailer 6
-
£2,986 GBP
€3,787 EUR
View
B+
Retailer 7
-
£4,167 GBP
ZAR 89,649 ZAR
View
B+
Retailer 8
-
£4,703 GBP
$6,263 USD
View
B+
Retailer 9
-
£4,835 GBP
$6,439 USD
View
B+
Retailer 10
-
£4,874 GBP
$6,490 USD
View
B+
Retailer 11
-
£5,132 GBP
View
B
Retailer 12
-
£6,277 GBP
$8,360 USD
View
B
Retailer 13
-
£6,945 GBP
$9,248 USD
View
Most Expensive
B
Brilliant Earth
20674141A · Oct 29
£9,116 GBP
$12,140 USD
View
13 more retailers have this diamond
Prices start from £1,897 GBPSave up to £7,219 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
3.31ct Radiant
£1,897 GBP