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Round|Natural|GIA

1.01ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6561521769

Certificate GIA 6561521769

Diamond specifications and retailer prices

From £1,189 GBP
As of November 6, 2026
Save £2,136 GBP (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,325 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561521769. Listed at 17 retailers as of November 5, 2026, with prices from £1,189 to £3,325, a £2,136 spread on the same certified stone. NZ Jewellers lists it at £3,325. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6561521769
Dimensions6.44 × 6.47 × 3.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Needle
Top View
6.44 mm6.47 mm1.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561521769
Side View
Table 57.0%Crown 31.5°Girdle: Slightly ThickPavilion 41.8°Culet: NoneDepth 61.9%

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: £3,325 GBP|Low: £1,189 GBP|High: £3,325 GBP|Avg: £1,855 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
Retailer 14
November 6, 2026
Retailer 12£1,189 GBP
Retailer 2£1,240 GBP
Retailer 6£1,475 GBP
Retailer 7£1,522 GBP
Retailer 5£1,531 GBP
Retailer 3£1,590 GBP
Retailer 13£1,590 GBP
Retailer 14£1,664 GBP
Retailer 10£1,717 GBP
Retailer 4£1,835 GBP
Retailer 8£1,941 GBP
Retailer 9£2,158 GBP
Retailer 11£2,779 GBP
NZ Jewellers£3,325 GBP

25 data points across 14 retailers

17 retailers£1,189 GBP to £3,325 GBP

A
Cheapest Retailer
-
£1,189 GBP
A
Retailer 2
-
£1,240 GBP
View
B+
Retailer 3
-
£1,475 GBP
View
B+
Retailer 4
-
£1,514 GBP
View
B+
Retailer 5
-
£1,522 GBP
View
B+
Retailer 6
-
£1,531 GBP
View
B+
Retailer 7
-
£1,583 GBP
View
B+
Retailer 8
-
£1,590 GBP
View
Retailer 9
-
£1,590 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£1,664 GBP
View
B
Retailer 11
-
£1,693 GBP
View
B+
Retailer 12
-
£1,717 GBP
View
B
Retailer 13
-
£1,835 GBP
View
B+
Retailer 14
-
£1,941 GBP
View
B
Retailer 15
-
£2,158 GBP
View
B
Retailer 16
-
£2,779 GBP
View
Most Expensive
B
NZ Jewellers
eb62b758-1d9a-4720-a116-3c65871e246d · Nov 5
£3,325 GBP
$4,475 USD
View
16 more retailers have this diamond
Prices start from £1,189 GBPSave up to £2,136 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
£1,189 GBP