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Round|Lab Grown|IGI

2.50ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG797669752

Shape and cutting style on the report: Round brilliant

Certificate IGI LG797669752

Diamond specifications and retailer prices

From £386 GBP
$517 USD
As of October 29, 2026
Save £3,756 GBP (91%) vs most expensive(unlock to see where)
25 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 LG797669752 or 797669752. Listed at 25 retailers as of October 29, 2026, with prices from £386 to £4,142, a £3,756 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 angle34°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797669752
Dimensions8.80 × 8.77 × 5.30 mm
L/W Ratio1.00
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 mm8.77 mm2.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797669752
Side View
Table 57.0%Crown 34°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.4%

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: £4,142 GBP|Low: £385 GBP|High: £5,157 GBP|Avg: £1,382 GBP|-19.7%
Brilliant Earth
Retailer 2
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Retailer 22
October 31, 2026
Retailer 12£386 GBP
Retailer 9£431 GBP
Retailer 8£432 GBP
Retailer 7£478 GBP
Retailer 18£534 GBP
Retailer 13£582 GBP
Retailer 22£673 GBP
Retailer 14£728 GBP
Retailer 19£730 GBP
Retailer 2£733 GBP
Retailer 17£1,062 GBP
Retailer 16£1,107 GBP
Retailer 10£1,120 GBP
Retailer 21£1,155 GBP
Retailer 5£1,258 GBP
Retailer 4£1,314 GBP
Retailer 11£1,556 GBP
Retailer 3£1,646 GBP
Retailer 6£1,775 GBP
Retailer 20£2,008 GBP
Retailer 15£3,929 GBP
Brilliant Earth£4,142 GBP

26 data points across 22 retailers

25 retailers£386 GBP to £4,142 GBP

A
Cheapest Retailer
-
£386 GBP
$517 USD
A
Retailer 2
-
£431 GBP
$578 USD
View
Final sale: no returns
A
Retailer 3
-
£432 GBP
$579 USD
View
A
Retailer 4
-
£478 GBP
$641 USD
View
Retailer 5
-
£497 GBP
$666 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
£534 GBP
View
A
Retailer 7
-
£582 GBP
$780 USD
View
A
Retailer 8
-
£673 GBP
$902 USD
View
A
Retailer 9
-
£728 GBP
$976 USD
View
A
Retailer 10
-
£730 GBP
€932 EUR
View
A
Retailer 11
-
£733 GBP
View
A
Retailer 12
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£1,062 GBP
A$2,190 AUD
View
A
Retailer 13
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£1,107 GBP
$1,483 USD
View
A
Retailer 14
-
£1,120 GBP
$1,501 USD
View
A
Retailer 15
-
£1,155 GBP
ZAR 24,997 ZAR
View
A
Retailer 16
-
£1,258 GBP
$1,686 USD
View
A
Retailer 17
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£1,284 GBP
$1,720 USD
View
A
Retailer 18
-
£1,314 GBP
$1,760 USD
View
B+
Retailer 19
-
£1,556 GBP
$2,085 USD
View
B+
Retailer 20
-
£1,646 GBP
$2,205 USD
View
B+
Retailer 21
-
£1,673 GBP
$2,242 USD
View
B+
Retailer 22
-
£1,775 GBP
$2,378 USD
View
B+
Retailer 23
-
£2,008 GBP
View
Retailer 24
-
£3,929 GBP
$5,265 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
19793679A · Oct 31
£4,142 GBP
$5,550 USD
View
24 more retailers have this diamond
Prices start from £386 GBPSave up to £3,756 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
£386 GBP