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Round|Natural|GIA

1.01ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6375472406

Certificate GIA 6375472406

Diamond specifications and retailer prices

From £889 GBP
As of November 5, 2026
Save £1,959 GBP (69%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,847 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6375472406. Listed at 17 retailers as of November 5, 2026, with prices from £889 to £2,847, a £1,959 spread on the same certified stone. NZ Jewellers lists it at £2,847. 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

1.01
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6375472406
Dimensions6.39 × 6.35 × 4.01 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Top View
6.39 mm6.35 mm1.01 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6375472406
Side View
Table 56.0%Crown 35.5°Girdle: ThickPavilion 40.6°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
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 5
Current: £2,847 GBP|Low: £889 GBP|High: £2,957 GBP|Avg: £1,354 GBP|-3.7%
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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 11£889 GBP
Retailer 15£1,035 GBP
Retailer 13£1,081 GBP
Retailer 16£1,096 GBP
Retailer 2£1,132 GBP
Retailer 4£1,164 GBP
Retailer 3£1,167 GBP
Retailer 6£1,167 GBP
Retailer 8£1,221 GBP
Retailer 5£1,268 GBP
Retailer 12£1,288 GBP
Retailer 7£1,347 GBP
Retailer 10£1,363 GBP
Retailer 9£1,534 GBP
Retailer 14£2,039 GBP
NZ Jewellers£2,847 GBP

24 data points across 16 retailers

17 retailers£889 GBP to £2,847 GBP

A
Cheapest Retailer
-
£889 GBP
A
Retailer 2
-
£1,035 GBP
View
A
Retailer 3
-
£1,081 GBP
View
A
Retailer 4
-
£1,096 GBP
View
A
Retailer 5
-
£1,132 GBP
View
A
Retailer 6
-
£1,164 GBP
View
Retailer 7
-
£1,167 GBP
View
Price last confirmed 8 days ago
A
Retailer 8
-
£1,167 GBP
View
B+
Retailer 9
-
£1,221 GBP
View
A
Retailer 10
-
£1,268 GBP
View
B+
Retailer 11
-
£1,279 GBP
View
A
Retailer 12
-
£1,288 GBP
View
B+
Retailer 13
-
£1,347 GBP
View
B+
Retailer 14
-
£1,363 GBP
View
B+
Retailer 15
-
£1,534 GBP
View
B
Retailer 16
-
£2,039 GBP
View
Most Expensive
B
NZ Jewellers
dc90e1b8-43ee-48db-a136-01f9839c2ed2 · Nov 5
£2,847 GBP
$3,832 USD
View
16 more retailers have this diamond
Prices start from £889 GBPSave up to £1,959 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
1.01ct Round
£889 GBP