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Round|Lab Grown|IGI

3.01ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG765611778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG765611778

Diamond specifications and retailer prices

From £258 GBP
$346 USD
As of October 29, 2026
Save £1,369 GBP (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,627 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.01ct lab-grown round diamond

This 3.01ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG765611778 or 765611778. Listed at 18 retailers as of October 29, 2026, with prices from £258 to £1,627, a £1,369 spread on the same certified stone. Brilliant Earth lists it at £1,627. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.01
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG765611778
Dimensions9.30 × 9.28 × 5.67 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.30 mm9.28 mm3.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG765611778
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 41°Culet: NoneDepth 61.1%

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 29
Current: £1,627 GBP|Low: £258 GBP|High: £1,627 GBP|Avg: £719 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 30, 2026
Retailer 15£258 GBP
Retailer 7£288 GBP
Retailer 14£299 GBP
Retailer 8£320 GBP
Retailer 9£320 GBP
Retailer 17£387 GBP
Retailer 12£433 GBP
Retailer 5£555 GBP
Retailer 11£571 GBP
Retailer 2£574 GBP
Retailer 16£682 GBP
Retailer 13£749 GBP
Retailer 3£1,030 GBP
Retailer 6£1,061 GBP
Retailer 4£1,239 GBP
Retailer 10£1,258 GBP
Brilliant Earth£1,627 GBP

43 data points across 17 retailers

18 retailers£258 GBP to £1,627 GBP

A
Cheapest Retailer
-
£258 GBP
$346 USD
A
Retailer 2
-
£288 GBP
$386 USD
View
Final sale: no returns
A
Retailer 3
-
£299 GBP
$401 USD
View
A
Retailer 4
-
£320 GBP
$429 USD
View
A
Retailer 5
-
£320 GBP
$429 USD
View
B+
Retailer 6
-
£387 GBP
$519 USD
View
A
Retailer 7
-
£433 GBP
$580 USD
View
A
Retailer 8
-
£555 GBP
$744 USD
View
A
Retailer 9
-
£571 GBP
€729 EUR
View
A
Retailer 10
-
£574 GBP
View
A
Retailer 11
-
£682 GBP
$914 USD
View
B+
Retailer 12
-
£749 GBP
$1,004 USD
View
Retailer 13
-
£792 GBP
$1,061 USD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
£1,030 GBP
$1,380 USD
View
B+
Retailer 15
-
£1,061 GBP
$1,422 USD
View
B
Retailer 16
-
£1,239 GBP
$1,660 USD
View
B
Retailer 17
-
£1,258 GBP
View
Most Expensive
B
Brilliant Earth
17555259A · Oct 29
£1,627 GBP
$2,180 USD
View
17 more retailers have this diamond
Prices start from £258 GBPSave up to £1,369 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
3.01ct Round
£258 GBP