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Radiant|Lab Grown|IGI

3.01ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG817665053

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG817665053

Diamond specifications and retailer prices

From £238 GBP
As of November 6, 2026
Save £2,010 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,249 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.01ct lab-grown radiant diamond

This 3.01ct lab-grown radiant 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 LG817665053 or 817665053. Listed at 18 retailers as of November 6, 2026, with prices from £238 to £2,249, a £2,010 spread on the same certified stone. Brilliant Earth lists it at £2,249. 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 angle43.6°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817665053
Dimensions10.36 × 7.13 × 4.57 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.36 mm7.13 mm3.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817665053
Side View
Table 64.0%Crown 43.6°Girdle: MED-STKPavilion 31.9°Culet: NoneDepth 64.1%

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: Nov 6
Current: £2,249 GBP|Low: £226 GBP|High: £3,519 GBP|Avg: £805 GBP|-36.1%
Brilliant Earth
Retailer 2
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Retailer 12
Retailer 13
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Retailer 18
November 7, 2026
Retailer 15£238 GBP
Retailer 8£267 GBP
Retailer 17£276 GBP
Retailer 18£295 GBP
Retailer 12£400 GBP
Retailer 2£448 GBP
Retailer 11£458 GBP
Retailer 5£480 GBP
Retailer 13£521 GBP
Retailer 6£533 GBP
Retailer 3£739 GBP
Retailer 7£844 GBP
Retailer 9£947 GBP
Retailer 16£950 GBP
Retailer 4£1,112 GBP
Retailer 14£1,180 GBP
Retailer 10£1,827 GBP
Brilliant Earth£2,249 GBP

39 data points across 18 retailers

18 retailers£238 GBP to £2,249 GBP

A
Cheapest Retailer
-
£238 GBP
A
Retailer 2
-
£267 GBP
View
Final sale: no returns
A
Retailer 3
-
£276 GBP
View
A
Retailer 4
-
£295 GBP
View
A
Retailer 5
-
£325 GBP
View
A
Retailer 6
-
£400 GBP
View
A
Retailer 7
-
£448 GBP
View
A
Retailer 8
-
£458 GBP
View
B+
Retailer 9
-
£480 GBP
View
A
Retailer 10
-
£521 GBP
View
Retailer 11
-
£533 GBP
View
Price last confirmed 12 days ago
B+
Retailer 12
-
£739 GBP
View
B+
Retailer 13
-
£947 GBP
View
B+
Retailer 14
-
£950 GBP
View
B
Retailer 15
-
£1,112 GBP
View
B+
Retailer 16
-
£1,180 GBP
View
Retailer 17
-
£1,827 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
20782460A · Nov 6
£2,249 GBP
$3,010 USD
View
17 more retailers have this diamond
Prices start from £238 GBPSave up to £2,010 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 Radiant
£238 GBP