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Round|Natural|IGI

3.00ct G SI2 Round Natural Diamond

EX • G/SI2 • IGI 644423702

Shape and cutting style on the report: Round brilliant

Certificate IGI 644423702

Diamond specifications and retailer prices

From £15,467 GBP
As of November 4, 2026
Save £9,695 GBP (39%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £25,161 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 3ct natural round diamond

This 3ct natural round sits in the three to five carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 644423702. Listed at 10 retailers as of November 4, 2026, with prices from £15,467 to £25,161, a £9,695 spread on the same certified stone. Diamond Quarter lists it at £25,161. 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

3.00
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle41.8°
OriginNatural
Grading LabIGI
CertificateIGI 644423702
Dimensions9.15 × 9.24 × 5.79 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.15 mm9.24 mm3.00 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 644423702
Side View
Table 55.0%Crown 32.1°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 63.0%

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 4
Current: £17,887 GBP|Low: £14,794 GBP|High: £23,111 GBP|Avg: £18,179 GBP|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10£15,467 GBP
Retailer 9£16,140 GBP
Retailer 7£16,947 GBP
Retailer 5£17,485 GBP
Retailer 3£17,604 GBP
Retailer 1£17,887 GBP
Retailer 8£18,158 GBP
Retailer 2£18,393 GBP
Retailer 4£20,715 GBP
Retailer 6£22,775 GBP

32 data points across 10 retailers

10 retailers£15,467 GBP to £25,161 GBP

A
Cheapest Retailer
-
£15,467 GBP
Final sale: no returns
Retailer 2
-
£16,140 GBP
View
Price last confirmed 21 days ago
A
Retailer 3
-
£16,947 GBP
View
A
Retailer 4
-
£17,485 GBP
View
A
Retailer 5
-
£17,604 GBP
View
A
Retailer 6
-
£17,887 GBP
View
A
Retailer 7
-
£18,158 GBP
View
B+
Retailer 8
-
£20,715 GBP
View
A
Retailer 9
-
£22,775 GBP
View
Most Expensive
B+
Diamond Quarter
3SI2G64020088M · Nov 5
£25,161 GBP
View
9 more retailers have this diamond
Prices start from £15,467 GBPSave up to £9,695 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
3.00ct Round
£15,467 GBP