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3.50ct K SI1 Round Natural Diamond

EX • K/SI1 • HRD 220000115420

Certificate HRD 220000115420

Diamond specifications and retailer prices

From £15,302 GBP
As of November 6, 2026
Save £8,063 GBP (35%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £23,364 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.5ct natural round diamond

This 3.5ct 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 HRD 220000115420. Listed at 2 retailers as of November 4, 2026, with prices from £15,302 to £23,364, a £8,063 spread on the same certified stone. MOH London lists it at £23,364. 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

3.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 220000115420
Dimensions9.61 × 9.68 × 6.05 mm
L/W Ratio1.01
Top View
9.61 mm9.68 mm3.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 220000115420
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £23,364 GBP|Low: £15,302 GBP|High: £23,709 GBP|Avg: £18,849 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 2£15,302 GBP
Retailer 3£17,272 GBP
MOH London£23,364 GBP

40 data points across 3 retailers

2 retailers£15,302 GBP to £23,364 GBP

A
Cheapest Retailer
-
£15,302 GBP
Most Expensive
B
MOH London
C8FBA6D89 · Nov 4
£23,364 GBP
View
1 more retailer has this diamond
Prices start from £15,302 GBPSave up to £8,063 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
3.50ct Round
£15,302 GBP