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Radiant|Lab Grown|IGI

2.50ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG836618001

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

Certificate IGI LG836618001

Diamond specifications and retailer prices

From £853 GBP
As of October 30, 2026
Save £3,685 GBP (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,538 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.5ct lab-grown radiant diamond

This 2.5ct lab-grown radiant sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836618001 or 836618001. Listed at 20 retailers as of October 30, 2026, with prices from £853 to £4,538, a £3,685 spread on the same certified stone. Brilliant Earth lists it at £4,538. 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

2.50
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836618001
Dimensions9.18 × 6.73 × 4.63 mm
L/W Ratio1.36
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
9.18 mm6.73 mm2.50 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836618001
Side View
Table 64.0%Crown 44.6°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 68.8%

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: Oct 30
Current: £4,538 GBP|Low: £789 GBP|High: £6,736 GBP|Avg: £2,678 GBP|-30.3%
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
Retailer 17
Retailer 18
October 30, 2026
Retailer 2£853 GBP
Retailer 16£882 GBP
Retailer 3£970 GBP
Retailer 11£1,297 GBP
Retailer 17£1,345 GBP
Retailer 15£1,481 GBP
Retailer 18£1,812 GBP
Retailer 4£1,927 GBP
Retailer 13£2,149 GBP
Retailer 5£2,320 GBP
Retailer 7£2,573 GBP
Retailer 12£2,867 GBP
Retailer 6£2,929 GBP
Retailer 9£3,125 GBP
Retailer 14£3,370 GBP
Retailer 8£3,872 GBP
Retailer 10£4,038 GBP
Brilliant Earth£4,538 GBP

27 data points across 18 retailers

20 retailers£853 GBP to £4,538 GBP

A
Cheapest Retailer
-
£853 GBP
A
Retailer 2
-
£882 GBP
$1,182 USD
View
Final sale: no returns
A
Retailer 3
-
£970 GBP
$1,300 USD
View
Retailer 4
-
£1,037 GBP
$1,389 USD
View
Price last confirmed 28 days ago
Retailer 5
-
£1,252 GBP
$1,678 USD
View
Price last confirmed 27 days ago
A
Retailer 6
-
£1,297 GBP
View
A
Retailer 7
-
£1,345 GBP
$1,802 USD
View
Retailer 8
-
£1,481 GBP
€1,890 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
£1,812 GBP
$2,428 USD
View
A
Retailer 10
-
£1,927 GBP
$2,582 USD
View
B+
Retailer 11
-
£2,149 GBP
ZAR 46,524 ZAR
View
B+
Retailer 12
-
£2,320 GBP
View
B+
Retailer 13
-
£2,573 GBP
$3,448 USD
View
B+
Retailer 14
-
£2,867 GBP
View
B+
Retailer 15
-
£2,929 GBP
$3,924 USD
View
B+
Retailer 16
-
£3,125 GBP
SGD 5,659 SGD
View
B+
Retailer 17
-
£3,370 GBP
$4,516 USD
View
B
Retailer 18
-
£3,872 GBP
$5,188 USD
View
Retailer 19
-
£4,038 GBP
$5,410 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21603031A · Oct 30
£4,538 GBP
$6,080 USD
View
19 more retailers have this diamond
Prices start from £853 GBPSave up to £3,685 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
2.50ct Radiant
£853 GBP