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Round|Natural|GIA

0.86ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6422446455

Certificate GIA 6422446455

Diamond specifications and retailer prices

From £618 GBP
As of November 6, 2026
Save £1,537 GBP (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,155 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.86ct natural round diamond

This 0.86ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6422446455. Listed at 13 retailers as of November 5, 2026, with prices from £618 to £2,155, a £1,537 spread on the same certified stone. NZ Jewellers lists it at £2,155. 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

0.86
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6422446455
Dimensions6.14 × 6.11 × 3.77 mm
L/W Ratio1.00
Top View
6.14 mm6.11 mm0.86 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6422446455
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 61.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,155 GBP|Low: £618 GBP|High: £2,155 GBP|Avg: £899 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4£618 GBP
Retailer 5£629 GBP
Retailer 9£687 GBP
Retailer 11£687 GBP
Retailer 13£694 GBP
Retailer 10£713 GBP
Retailer 3£785 GBP
Retailer 6£787 GBP
Retailer 12£793 GBP
Retailer 2£906 GBP
Retailer 7£959 GBP
Retailer 8£1,259 GBP
NZ Jewellers£2,155 GBP

33 data points across 13 retailers

13 retailers£618 GBP to £2,155 GBP

A
Cheapest Retailer
-
£618 GBP
A
Retailer 2
-
£687 GBP
View
Retailer 3
-
£687 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£694 GBP
View
A
Retailer 5
-
£713 GBP
View
A
Retailer 6
-
£750 GBP
View
B+
Retailer 7
-
£785 GBP
View
A
Retailer 8
-
£787 GBP
View
A
Retailer 9
-
£793 GBP
View
B+
Retailer 10
-
£906 GBP
View
B+
Retailer 11
-
£959 GBP
View
B
Retailer 12
-
£1,259 GBP
View
Most Expensive
B
NZ Jewellers
9fbbe7ef-1357-42fa-9e42-3d311f5c0e20 · Nov 5
£2,155 GBP
$2,900 USD
View
12 more retailers have this diamond
Prices start from £618 GBPSave up to £1,537 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
0.86ct Round
£618 GBP