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Round|Natural|GIA

4.06ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5406174082

Certificate GIA 5406174082

Diamond specifications and retailer prices

From £34,675 GBP
As of November 1, 2026
Save £12,384 GBP (26%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £47,060 GBP at Yorxs · As of November 5, 2026
View at Yorxs

About this 4.06ct natural round diamond

This 4.06ct 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 5406174082. Listed at 5 retailers as of November 1, 2026, with prices from £34,675 to £47,060, a £12,384 spread on the same certified stone. Yorxs lists it at £47,060. 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

4.06
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5406174082
Dimensions10.29 × 10.21 × 6.28 mm
L/W Ratio1.01
Top View
10.29 mm10.21 mm4.06 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5406174082
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £36,274 GBP|Low: £34,675 GBP|High: £47,516 GBP|Avg: £39,636 GBP|-1.4%
Retailer 1
Retailer 2
Yorxs
November 5, 2026
Retailer 2£34,675 GBP
Retailer 1£36,274 GBP
Yorxs£47,060 GBP

45 data points across 3 retailers

5 retailers£34,675 GBP to £47,060 GBP

B+
Cheapest Retailer
-
£34,675 GBP
B
Retailer 2
-
£36,274 GBP
View
B
Retailer 3
-
£36,473 GBP
View
B
Retailer 4
-
£43,940 GBP
View
Most Expensive
B
Yorxs
230056998 · Nov 5
£47,060 GBP
€60,322 EUR
View
4 more retailers have this diamond
Prices start from £34,675 GBPSave up to £12,384 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+
4.06ct Round
£34,675 GBP