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3.01ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG830640291

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830640291

Diamond specifications and retailer prices

From £484 GBP
As of November 4, 2026
Save £2,538 GBP (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,022 GBP at Mervis Diamond Importers · As of November 4, 2026
View at Mervis Diamond Importers

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 LG830640291 or 830640291. Listed at 11 retailers as of November 4, 2026, with prices from £484 to £3,022, a £2,538 spread on the same certified stone. Mervis Diamond Importers lists it at £3,022. 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 angle33.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830640291
Dimensions9.37 × 9.34 × 5.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.37 mm9.34 mm3.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830640291
Side View
Table 58.0%Crown 33.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
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 4
Current: £3,022 GBP|Low: £476 GBP|High: £3,022 GBP|Avg: £1,088 GBP|+133.4%
Mervis Diamond Importers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 12£484 GBP
Retailer 8£487 GBP
Retailer 10£540 GBP
Retailer 6£614 GBP
Retailer 9£631 GBP
Retailer 7£986 GBP
Retailer 4£1,016 GBP
Retailer 5£1,397 GBP
Retailer 3£1,430 GBP
Retailer 2£1,475 GBP
Retailer 11£2,615 GBP
Mervis Diamond Importers£3,022 GBP

16 data points across 12 retailers

11 retailers£484 GBP to £3,022 GBP

B+
Cheapest Retailer
-
£484 GBP
A
Retailer 2
-
£487 GBP
View
A
Retailer 3
-
£614 GBP
View
A
Retailer 4
-
£631 GBP
View
B+
Retailer 5
-
£986 GBP
View
B+
Retailer 6
-
£1,016 GBP
View
B
Retailer 7
-
£1,397 GBP
View
B
Retailer 8
-
£1,430 GBP
View
B
Retailer 9
-
£1,475 GBP
View
B
Retailer 10
-
£2,615 GBP
View
Most Expensive
B
Mervis Diamond Importers
1992739080 · Nov 4
£3,022 GBP
$4,068 USD
View
10 more retailers have this diamond
Prices start from £484 GBPSave up to £2,538 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
£484 GBP