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Round|Natural|GIA

6.17ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7551506335

Certificate GIA 7551506335

Diamond specifications and retailer prices

From £48,192 GBP
As of November 6, 2026
Save £40,648 GBP (46%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £88,840 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 6.17ct natural round diamond

This 6.17ct natural round sits in the over five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551506335. Listed at 7 retailers as of November 4, 2026, with prices from £48,192 to £88,840, a £40,648 spread on the same certified stone. MOH London lists it at £88,840. 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

6.17
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7551506335
Dimensions11.61 × 11.69 × 7.28 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Natural
Top View
11.61 mm11.69 mm6.17 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551506335
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: £88,840 GBP|Low: £48,192 GBP|High: £90,535 GBP|Avg: £59,567 GBP|-1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8£48,192 GBP
Retailer 5£51,284 GBP
Retailer 10£51,770 GBP
Retailer 6£54,471 GBP
Retailer 7£55,813 GBP
Retailer 2£56,159 GBP
Retailer 9£56,695 GBP
Retailer 4£63,445 GBP
Retailer 3£65,813 GBP
MOH London£88,840 GBP

42 data points across 10 retailers

7 retailers£48,192 GBP to £88,840 GBP

A
Cheapest Retailer
-
£48,192 GBP
A
Retailer 2
-
£51,284 GBP
View
Retailer 3
-
£54,471 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£55,813 GBP
View
B+
Retailer 5
-
£56,159 GBP
View
B+
Retailer 6
-
£63,445 GBP
View
Most Expensive
B
MOH London
63111AA68 · Nov 4
£88,840 GBP
View
6 more retailers have this diamond
Prices start from £48,192 GBPSave up to £40,648 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
6.17ct Round
£48,192 GBP