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Round|Lab Grown|IGI

3.01ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG837648583

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837648583

Diamond specifications and retailer prices

From £301 GBP
As of November 5, 2026
Save £1,609 GBP (84%) vs most expensive(unlock to see where)
10 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 LG837648583 or 837648583. Listed at 10 retailers as of November 5, 2026, with prices from £301 to £1,909, a £1,609 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837648583
Dimensions9.21 × 9.28 × 5.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.21 mm9.28 mm3.01 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837648583
Side View
Table 60.0%Crown 33.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.9%

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: £284 GBP|High: £1,969 GBP|Avg: £1,002 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 5£301 GBP
Retailer 4£337 GBP
Retailer 2£495 GBP
Retailer 8£572 GBP
Retailer 7£1,010 GBP
Retailer 9£1,010 GBP
Retailer 3£1,200 GBP
Retailer 6£1,407 GBP
Retailer 10£1,425 GBP
Brilliant Earth£1,909 GBP

36 data points across 10 retailers

10 retailers£301 GBP to £1,909 GBP

A
Cheapest Retailer
-
£301 GBP
A
Retailer 2
-
£337 GBP
View
A
Retailer 3
-
£495 GBP
View
Retailer 4
-
£572 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£1,010 GBP
View
B
Retailer 6
-
£1,010 GBP
View
B
Retailer 7
-
£1,200 GBP
View
B
Retailer 8
-
£1,407 GBP
View
Retailer 9
-
£1,425 GBP
View
Price last confirmed 24 days ago
Most Expensive
B
Brilliant Earth
21477364A · Nov 5
£1,909 GBP
$2,570 USD
View
9 more retailers have this diamond
Prices start from £301 GBPSave up to £1,609 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
£301 GBP