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Round|Lab Grown|IGI

2.50ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG807671855

Shape and cutting style on the report: Round brilliant

Certificate IGI LG807671855

Diamond specifications and retailer prices

From £432 GBP
$579 USD
As of October 29, 2026
Save £6,322 GBP (94%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,754 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 LG807671855 or 807671855. Listed at 17 retailers as of October 29, 2026, with prices from £432 to £6,754, a £6,322 spread on the same certified stone. Brilliant Earth lists it at £6,754. 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 angle35.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807671855
Dimensions8.70 × 8.62 × 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
8.70 mm8.62 mm2.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807671855
Side View
Table 59.0%Crown 35.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.9%

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: £6,754 GBP|Low: £415 GBP|High: £6,799 GBP|Avg: £1,597 GBP
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
October 31, 2026
Retailer 17£432 GBP
Retailer 9£481 GBP
Retailer 4£484 GBP
Retailer 11£634 GBP
Retailer 13£661 GBP
Retailer 5£709 GBP
Retailer 10£859 GBP
Retailer 3£1,047 GBP
Retailer 12£1,314 GBP
Retailer 6£1,330 GBP
Retailer 16£1,330 GBP
Retailer 7£1,358 GBP
Retailer 8£1,556 GBP
Retailer 14£2,344 GBP
Retailer 2£2,481 GBP
Retailer 15£3,358 GBP
Brilliant Earth£6,754 GBP

34 data points across 17 retailers

17 retailers£432 GBP to £6,754 GBP

A
Cheapest Retailer
-
£432 GBP
$579 USD
A
Retailer 2
-
£481 GBP
$645 USD
View
Final sale: no returns
A
Retailer 3
-
£484 GBP
$649 USD
View
A
Retailer 4
-
£634 GBP
$850 USD
View
A
Retailer 5
-
£661 GBP
View
A
Retailer 6
-
£709 GBP
$950 USD
View
A
Retailer 7
-
£859 GBP
€1,096 EUR
View
Retailer 8
-
£1,047 GBP
$1,403 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
£1,314 GBP
A$2,709 AUD
View
A
Retailer 10
-
£1,330 GBP
$1,782 USD
View
A
Retailer 11
-
£1,330 GBP
$1,782 USD
View
A
Retailer 12
-
£1,358 GBP
$1,819 USD
View
A
Retailer 13
-
£1,556 GBP
$2,085 USD
View
B+
Retailer 14
-
£2,344 GBP
View
B+
Retailer 15
-
£2,481 GBP
A$5,115 AUD
View
B
Retailer 16
-
£3,358 GBP
$4,500 USD
View
Most Expensive
B
Brilliant Earth
21673638A · Oct 31
£6,754 GBP
$9,050 USD
View
16 more retailers have this diamond
Prices start from £432 GBPSave up to £6,322 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
£432 GBP