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3.03ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6442908541

Certificate GIA 6442908541

Diamond specifications and retailer prices

From £15,656 GBP
$21,071 USD
As of November 5, 2026
1 retailer carries this diamond
Only listing: £15,656 GBP at Blue Nile
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Blue Nile

About this 3.03ct natural round diamond

This 3.03ct 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 6442908541. Listed at a single retailer as of November 5, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.03
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle32°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6442908541
Dimensions9.25 × 9.33 × 5.74 mm
L/W Ratio1.01
Top View
9.25 mm9.33 mm3.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6442908541
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: £15,656 GBP|Low: £14,502 GBP|High: £18,827 GBP|Avg: £16,196 GBP|-3.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
October 24, 2026
Retailer 2£14,502 GBP
Retailer 3£15,497 GBP
Blue Nile£15,656 GBP
Retailer 4£18,827 GBP

2 data points across 4 retailers

1 retailer

B+
Blue Nile
16305455 · Nov 5
£15,656 GBP
$21,071 USD
View

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.

B+
3.03ct Round
£15,656 GBP