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Round|Lab Grown|IGI

2.50ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG812620626

Shape and cutting style on the report: Round brilliant

Certificate IGI LG812620626

Diamond specifications and retailer prices

From £449 GBP
$601 USD
As of October 31, 2026
Save £3,694 GBP (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £4,142 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.5ct lab-grown round diamond

This 2.5ct lab-grown round sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812620626 or 812620626. Listed at 24 retailers as of October 31, 2026, with prices from £449 to £4,142, a £3,694 spread on the same certified stone. Brilliant Earth lists it at £4,142. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620626
Dimensions8.80 × 8.72 × 5.36 mm
L/W Ratio1.01
Girdle conditionFaceted
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
8.80 mm8.72 mm2.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620626
Side View
Table 56.0%Crown 33.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.2%

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: Oct 31
Current: £4,142 GBP|Low: £449 GBP|High: £5,157 GBP|Avg: £1,402 GBP|-19.7%
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
November 1, 2026
Retailer 5£449 GBP
Retailer 9£516 GBP
Retailer 10£597 GBP
Retailer 16£700 GBP
Retailer 13£759 GBP
Retailer 2£772 GBP
Retailer 12£1,104 GBP
Retailer 11£1,105 GBP
Retailer 6£1,167 GBP
Retailer 15£1,200 GBP
Retailer 3£1,319 GBP
Retailer 4£1,602 GBP
Retailer 7£1,615 GBP
Retailer 17£1,694 GBP
Retailer 14£2,087 GBP
Retailer 8£3,933 GBP
Brilliant Earth£4,142 GBP

42 data points across 17 retailers

24 retailers£449 GBP to £4,142 GBP

Retailer 1
-
£416 GBP
$558 USD
Price last confirmed 40 days ago
Retailer 2
-
£416 GBP
$558 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
£449 GBP
$601 USD
View
Final sale: no returns
Retailer 4
-
£466 GBP
$625 USD
View
Price last confirmed 38 days ago
Retailer 5
-
£510 GBP
$683 USD
View
Price last confirmed 37 days ago
Retailer 6
-
£516 GBP
$692 USD
View
Price last confirmed 19 days ago
Retailer 7
-
£516 GBP
$692 USD
View
Price last confirmed 29 days ago
A
Retailer 8
-
£597 GBP
$800 USD
View
A
Retailer 9
-
£700 GBP
$938 USD
View
A
Retailer 10
-
£759 GBP
€969 EUR
View
A
Retailer 11
-
£772 GBP
View
A
Retailer 12
-
£1,104 GBP
A$2,276 AUD
View
A
Retailer 13
-
£1,105 GBP
$1,480 USD
View
A
Retailer 14
-
£1,167 GBP
$1,563 USD
View
A
Retailer 15
-
£1,200 GBP
ZAR 25,981 ZAR
View
A
Retailer 16
-
£1,319 GBP
$1,767 USD
View
Retailer 17
-
£1,358 GBP
$1,819 USD
View
Price last confirmed 41 days ago
Retailer 18
-
£1,358 GBP
$1,819 USD
View
Price last confirmed 24 days ago
A
Retailer 19
-
£1,602 GBP
$2,146 USD
View
B+
Retailer 20
-
£1,615 GBP
$2,164 USD
View
B+
Retailer 21
-
£1,694 GBP
$2,270 USD
View
B+
Retailer 22
-
£2,087 GBP
View
Retailer 23
-
£3,933 GBP
$5,270 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
20893339A · Oct 31
£4,142 GBP
$5,550 USD
View
23 more retailers have this diamond
Prices start from £449 GBPSave up to £3,694 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 Round
£449 GBP