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Round|Natural|GIA

4.71ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2456871148

Certificate GIA 2456871148

Diamond specifications and retailer prices

From £36,681 GBP
As of November 1, 2026
Save £6,137 GBP (14%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £42,819 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 4.71ct natural round diamond

This 4.71ct 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 2456871148. Listed at 2 retailers as of November 1, 2026, with prices from £36,681 to £42,819, a £6,137 spread on the same certified stone. Blue Nile lists it at £42,819. 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

4.71
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2456871148
Dimensions11.09 × 11.01 × 6.48 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
11.09 mm11.01 mm4.71 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2456871148
Side View
Table 62.0%Crown 33°Girdle: THN-MEDPavilion 41.6°Culet: NoneDepth 58.7%

Caratlytics Score

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

Last verified: Nov 1
Current: £42,819 GBP|Low: £28,792 GBP|High: £73,144 GBP|Avg: £44,697 GBP
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 18, 2026
Retailer 9£28,792 GBP
Retailer 8£36,571 GBP
Retailer 2£36,681 GBP
Retailer 3£42,145 GBP
Blue Nile£42,819 GBP
Retailer 7£42,991 GBP
Retailer 4£48,829 GBP
Retailer 6£50,195 GBP
Retailer 5£73,144 GBP

4 data points across 9 retailers

2 retailers£36,681 GBP to £42,819 GBP

B+
Cheapest Retailer
-
£36,681 GBP
Most Expensive
B
Blue Nile
18250347 · Nov 5
£42,819 GBP
$57,630 USD
View
1 more retailer has this diamond
Prices start from £36,681 GBPSave up to £6,137 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.

B+
4.71ct Round
£36,681 GBP