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Round|Natural|GIA

3.00ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2557230446

Certificate GIA 2557230446

Diamond specifications and retailer prices

From £14,963 GBP
As of November 6, 2026
Save £10,826 GBP (42%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £25,789 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3ct natural round diamond

This 3ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557230446. Listed at 9 retailers as of November 4, 2026, with prices from £14,963 to £25,789, a £10,826 spread on the same certified stone. MOH London lists it at £25,789. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557230446
Dimensions9.20 × 9.26 × 5.73 mm
L/W Ratio1.01
Star length55%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
9.20 mm9.26 mm3.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557230446
Side View
Table 54.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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: £25,789 GBP|Low: £14,800 GBP|High: £26,171 GBP|Avg: £18,445 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 9£14,963 GBP
Retailer 7£15,222 GBP
Retailer 6£16,141 GBP
Retailer 2£16,529 GBP
Retailer 5£16,695 GBP
Retailer 8£17,286 GBP
Retailer 3£18,356 GBP
Retailer 4£21,463 GBP
MOH London£25,789 GBP

35 data points across 9 retailers

9 retailers£14,963 GBP to £25,789 GBP

A
Cheapest Retailer
-
£14,963 GBP
A
Retailer 2
-
£15,222 GBP
View
B+
Retailer 3
-
£16,141 GBP
View
B+
Retailer 4
-
£16,529 GBP
View
B+
Retailer 5
-
£16,695 GBP
View
B+
Retailer 6
-
£17,286 GBP
View
B+
Retailer 7
-
£18,356 GBP
View
B
Retailer 8
-
£21,463 GBP
View
Most Expensive
B
MOH London
132FBEC1D · Nov 4
£25,789 GBP
View
8 more retailers have this diamond
Prices start from £14,963 GBPSave up to £10,826 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
£14,963 GBP