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Round|Lab Grown|IGI

3.25ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG787620789

Shape and cutting style on the report: Round brilliant

Certificate IGI LG787620789

Diamond specifications and retailer prices

From £1,473 GBP
$1,973 USD
As of October 30, 2026
Save £5,356 GBP (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,829 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.25ct lab-grown round diamond

This 3.25ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG787620789 or 787620789. Listed at 12 retailers as of October 30, 2026, with prices from £1,473 to £6,829, a £5,356 spread on the same certified stone. Brilliant Earth lists it at £6,829. 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

3.25
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787620789
Dimensions9.41 × 9.48 × 5.88 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
9.41 mm9.48 mm3.25 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787620789
Side View
Table 56.0%Crown 35.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

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: £6,829 GBP|Low: £1,473 GBP|High: £10,277 GBP|Avg: £3,794 GBP|-33.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7£1,473 GBP
Retailer 11£1,595 GBP
Retailer 2£1,843 GBP
Retailer 9£1,952 GBP
Retailer 10£1,978 GBP
Retailer 6£2,112 GBP
Retailer 8£3,415 GBP
Retailer 5£3,761 GBP
Retailer 3£4,605 GBP
Retailer 12£5,044 GBP
Retailer 4£5,606 GBP
Brilliant Earth£6,829 GBP

42 data points across 12 retailers

12 retailers£1,473 GBP to £6,829 GBP

A
Cheapest Retailer
-
£1,473 GBP
$1,973 USD
A
Retailer 2
-
£1,595 GBP
HK$16,700 HKD
View
A
Retailer 3
-
£1,843 GBP
View
A
Retailer 4
-
£1,952 GBP
$2,615 USD
View
A
Retailer 5
-
£1,978 GBP
$2,650 USD
View
A
Retailer 6
-
£2,112 GBP
€2,695 EUR
View
B+
Retailer 7
-
£3,415 GBP
$4,576 USD
View
B+
Retailer 8
-
£3,761 GBP
View
B+
Retailer 9
-
£4,538 GBP
$6,080 USD
View
B
Retailer 10
-
£4,605 GBP
$6,171 USD
View
B
Retailer 11
-
£5,044 GBP
$6,758 USD
View
Most Expensive
B
Brilliant Earth
19712542A · Oct 30
£6,829 GBP
$9,150 USD
View
11 more retailers have this diamond
Prices start from £1,473 GBPSave up to £5,356 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
3.25ct Round
£1,473 GBP