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Radiant|Natural|IGI

3.03ct I SI1 Radiant Natural Diamond

VG • I/SI1 • IGI 819634377

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

Certificate IGI 819634377

Diamond specifications and retailer prices

From £12,609 GBP
As of November 6, 2026
Save £8,410 GBP (40%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £21,019 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.03ct natural radiant diamond

This 3.03ct natural radiant sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 819634377. Listed at 16 retailers as of November 4, 2026, with prices from £12,609 to £21,019, a £8,410 spread on the same certified stone. MOH London lists it at £21,019. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.03
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle43°
Pavilion angle37.3°
OriginNatural
Grading LabIGI
CertificateIGI 819634377
Dimensions8.62 × 7.85 × 5.32 mm
L/W Ratio1.10
Top View
8.62 mm7.85 mm3.03 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 819634377
Side View
Table 64.0%Crown 43°Girdle: THN-THKPavilion 37.3°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £21,019 GBP|Low: £12,609 GBP|High: £44,749 GBP|Avg: £15,701 GBP|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 9£12,609 GBP
Retailer 3£12,955 GBP
Retailer 6£13,694 GBP
Retailer 2£14,115 GBP
Retailer 7£14,275 GBP
Retailer 5£14,542 GBP
Retailer 4£14,896 GBP
Retailer 10£14,910 GBP
Retailer 8£14,923 GBP
Retailer 16£15,641 GBP
Retailer 15£16,138 GBP
Retailer 11£16,281 GBP
Retailer 13£16,758 GBP
Retailer 12£17,373 GBP
Retailer 14£19,118 GBP
MOH London£21,019 GBP

23 data points across 16 retailers

16 retailers£12,609 GBP to £21,019 GBP

A
Cheapest Retailer
-
£12,609 GBP
A
Retailer 2
-
£12,955 GBP
View
A
Retailer 3
-
£13,694 GBP
View
A
Retailer 4
-
£14,115 GBP
View
B+
Retailer 5
-
£14,275 GBP
View
Final sale: no returns
B+
Retailer 6
-
£14,542 GBP
View
Retailer 7
-
£14,896 GBP
View
Price last confirmed 9 days ago
A
Retailer 8
-
£14,910 GBP
View
B+
Retailer 9
-
£14,923 GBP
View
A
Retailer 10
-
£15,641 GBP
View
B+
Retailer 11
-
£16,138 GBP
View
A
Retailer 12
-
£16,281 GBP
View
B+
Retailer 13
-
£16,758 GBP
View
B+
Retailer 14
-
£17,373 GBP
View
B+
Retailer 15
-
£19,118 GBP
View
Most Expensive
B+
MOH London
832733D8E · Nov 4
£21,019 GBP
View
15 more retailers have this diamond
Prices start from £12,609 GBPSave up to £8,410 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
3.03ct Radiant
£12,609 GBP