CaratHunter
Plans
Radiant|Lab Grown|IGI

2.51ct E FL Radiant Lab Grown Diamond

VG • E/FL • IGI LG825659727

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

Certificate IGI LG825659727

Diamond specifications and retailer prices

From £1,445 GBP
$1,936 USD
As of October 30, 2026
Save £5,100 GBP (78%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £6,545 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.51ct lab-grown radiant diamond

This 2.51ct lab-grown radiant sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG825659727 or 825659727. Listed at 9 retailers as of October 29, 2026, with prices from £1,445 to £6,545, a £5,100 spread on the same certified stone. Brilliant Earth lists it at £6,545. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825659727
Dimensions9.55 × 6.74 × 4.43 mm
L/W Ratio1.42
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
9.55 mm6.74 mm2.51 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825659727
Side View
Table 66.0%Crown 43.4°Girdle: Slightly ThickPavilion 34.3°Culet: NoneDepth 65.7%

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 30
Current: £6,545 GBP|Low: £1,445 GBP|High: £6,754 GBP|Avg: £3,796 GBP|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 7£1,445 GBP
Retailer 4£1,926 GBP
Retailer 2£2,122 GBP
Retailer 5£2,313 GBP
Retailer 6£3,787 GBP
Retailer 9£4,086 GBP
Retailer 3£4,298 GBP
Retailer 8£5,000 GBP
Brilliant Earth£6,545 GBP

41 data points across 9 retailers

9 retailers£1,445 GBP to £6,545 GBP

A
Cheapest Retailer
-
£1,445 GBP
$1,936 USD
Final sale: no returns
B+
Retailer 2
-
£1,926 GBP
$2,580 USD
View
B+
Retailer 3
-
£2,122 GBP
View
Retailer 4
-
£2,313 GBP
€2,951 EUR
View
Price last confirmed 7 days ago
B
Retailer 5
-
£3,787 GBP
$5,074 USD
View
Retailer 6
-
£4,086 GBP
$5,475 USD
View
Price last confirmed 9 days ago
B
Retailer 7
-
£4,298 GBP
View
B
Retailer 8
-
£5,000 GBP
SGD 9,054 SGD
View
Most Expensive
B
Brilliant Earth
21636050A · Oct 29
£6,545 GBP
$8,770 USD
View
8 more retailers have this diamond
Prices start from £1,445 GBPSave up to £5,100 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
2.51ct Radiant
£1,445 GBP