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Round|Lab Grown|IGI

3.01ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG743578241

Shape and cutting style on the report: Round brilliant

Certificate IGI LG743578241

Diamond specifications and retailer prices

From £261 GBP
As of November 5, 2026
Save £1,649 GBP (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,909 GBP at Brilliant Earth · As of November 5, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG743578241 or 743578241. Listed at 21 retailers as of November 5, 2026, with prices from £261 to £1,909, a £1,649 spread on the same certified stone. Brilliant Earth lists it at £1,909. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743578241
Dimensions9.21 × 9.17 × 5.74 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
9.21 mm9.17 mm3.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743578241
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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: Nov 5
Current: £1,909 GBP|Low: £261 GBP|High: £1,969 GBP|Avg: £759 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
November 6, 2026
Retailer 13£261 GBP
Retailer 16£291 GBP
Retailer 17£302 GBP
Retailer 5£323 GBP
Retailer 14£361 GBP
Retailer 11£435 GBP
Retailer 7£457 GBP
Retailer 4£574 GBP
Retailer 6£596 GBP
Retailer 10£628 GBP
Retailer 15£789 GBP
Retailer 9£810 GBP
Retailer 8£996 GBP
Retailer 18£1,032 GBP
Retailer 12£1,039 GBP
Retailer 2£1,244 GBP
Retailer 3£1,259 GBP
Brilliant Earth£1,909 GBP

43 data points across 18 retailers

21 retailers£261 GBP to £1,909 GBP

A
Cheapest Retailer
-
£261 GBP
A
Retailer 2
-
£291 GBP
View
Final sale: no returns
A
Retailer 3
-
£302 GBP
View
A
Retailer 4
-
£323 GBP
View
Retailer 5
-
£340 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£361 GBP
View
A
Retailer 7
-
£435 GBP
View
B+
Retailer 8
-
£457 GBP
View
A
Retailer 9
-
£574 GBP
View
A
Retailer 10
-
£596 GBP
View
A
Retailer 11
-
£628 GBP
View
B+
Retailer 12
-
£789 GBP
View
B+
Retailer 13
-
£810 GBP
View
B+
Retailer 14
-
£996 GBP
View
B+
Retailer 15
-
£1,032 GBP
View
B+
Retailer 16
-
£1,039 GBP
View
B+
Retailer 17
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£1,121 GBP
View
B
Retailer 18
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£1,244 GBP
View
B+
Retailer 19
-
£1,259 GBP
View
Retailer 20
-
£1,546 GBP
View
Price last confirmed 82 days ago
Most Expensive
B
Brilliant Earth
20665564A · Nov 5
£1,909 GBP
$2,570 USD
View
20 more retailers have this diamond
Prices start from £261 GBPSave up to £1,649 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
£261 GBP