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Round|Natural|GIA

1.00ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6562014697

Certificate GIA 6562014697

Diamond specifications and retailer prices

From £1,046 GBP
As of November 1, 2026
Save £857 GBP (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,413 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct 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 6562014697. Listed at 17 retailers as of November 1, 2026, with a 82% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6562014697
Dimensions6.39 × 6.43 × 3.91 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural, Natural
Top View
6.39 mm6.43 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562014697
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.0%

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 1
Current: £1,386 GBP|Low: £1,036 GBP|High: £2,482 GBP|Avg: £1,568 GBP|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 5£1,046 GBP
Retailer 4£1,103 GBP
Retailer 1£1,386 GBP
Retailer 8£1,399 GBP
Retailer 2£1,525 GBP
Retailer 6£1,720 GBP
Retailer 3£1,904 GBP
Retailer 7£2,464 GBP

42 data points across 8 retailers

17 retailers£1,046 GBP to £1,904 GBP

A
Cheapest Retailer
-
£1,046 GBP
A
Retailer 2
-
£1,103 GBP
View
B+
Retailer 3
-
£1,308 GBP
View
B+
Retailer 4
-
£1,311 GBP
View
B+
Retailer 5
-
£1,386 GBP
View
Retailer 6
-
£1,399 GBP
View
Price last confirmed 8 days ago
Retailer 7
-
£1,399 GBP
View
Price last confirmed 39 days ago
Retailer 8
-
£1,399 GBP
View
Price last confirmed 36 days ago
B+
Retailer 9
-
£1,404 GBP
View
Retailer 10
-
£1,457 GBP
View
Price last confirmed 10 days ago
B+
Retailer 11
-
£1,502 GBP
View
B+
Retailer 12
-
£1,525 GBP
View
Retailer 13
-
£1,615 GBP
View
Price last confirmed 38 days ago
B+
Retailer 14
-
£1,720 GBP
View
B+
Retailer 15
-
£1,904 GBP
View
Retailer 16
-
£2,464 GBP
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
8c673137-5a4a-4aef-a92f-25e2b4009292 · Sep 28
£3,413 GBP
$4,594 USD
View
Price last confirmed 39 days ago
16 more retailers have this diamond
Prices start from £1,046 GBPSave up to £857 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
1.00ct Round
£1,046 GBP