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Round|Natural|IGI

1.00ct K I2 Round Natural Diamond

GD • K/I2 • IGI 808619647

Shape and cutting style on the report: Round brilliant

Certificate IGI 808619647

Diamond specifications and retailer prices

From £406 GBP
As of November 5, 2026
Save £867 GBP (68%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,273 GBP at NZ Jewellers · As of November 5, 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 I2 clarity (included), with a standard cut grade and certified by IGI 808619647. Listed at 5 retailers as of November 5, 2026, with prices from £406 to £1,273, a £867 spread on the same certified stone. NZ Jewellers lists it at £1,273. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
K
Colour
I2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.2°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 808619647
Dimensions6.11 × 6.20 × 3.95 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.11 mm6.20 mm1.00 ctK / I2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 808619647
Side View
Table 65.0%Crown 37.2°Girdle: THK-VTKPavilion 41.1°Culet: NoneDepth 64.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £452 GBP|Low: £449 GBP|High: £452 GBP|Avg: £451 GBP|+0.8%
September 25, 2026
Retailer 1£452 GBP

4 data points across 1 retailer

5 retailers£406 GBP to £1,273 GBP

B+
Cheapest Retailer
-
£406 GBP
Retailer 2
-
£438 GBP
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£438 GBP
View
B+
Retailer 4
-
£469 GBP
View
Most Expensive
C
NZ Jewellers
97703194-6d38-45a4-8d9a-ab5c602bdaff · Nov 5
£1,273 GBP
$1,714 USD
View
4 more retailers have this diamond
Prices start from £406 GBPSave up to £867 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.

B+
1.00ct Round
£406 GBP