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Oval|Natural|IGI

1.00ct K I1 Oval Natural Diamond

VG • K/I1 • IGI 790691114

Shape and cutting style on the report: Oval brilliant

Certificate IGI 790691114

Diamond specifications and retailer prices

From £623 GBP
As of October 31, 2026
Save £143 GBP (19%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,694 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded K colour (faint-tinted) and I1 clarity (included), with a very-good cut grade and certified by IGI 790691114. Listed at 7 retailers as of October 31, 2026, with a relatively tight 23% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle37.7°
Pavilion angle38.4°
OriginNatural
Grading LabIGI
CertificateIGI 790691114
Dimensions8.44 × 5.38 × 3.34 mm
L/W Ratio1.57
Girdle conditionFaceted
Culet sizePointed
Top View
8.44 mm5.38 mm1.00 ctK / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 790691114
Side View
Table 54.0%Crown 37.7°Girdle: MED-VTKPavilion 38.4°Culet: NoneDepth 62.1%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £1,694 GBP|Low: £540 GBP|High: £1,871 GBP|Avg: £795 GBP|-9.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 4£540 GBP
Retailer 6£540 GBP
Retailer 5£561 GBP
Retailer 7£568 GBP
Retailer 3£623 GBP
Retailer 8£756 GBP
Retailer 2£767 GBP
NZ Jewellers£1,694 GBP

29 data points across 8 retailers

7 retailers£623 GBP to £767 GBP

Retailer 1
-
£540 GBP
Price last confirmed 8 days ago
Retailer 2
-
£540 GBP
View
Price last confirmed 8 days ago
Retailer 3
-
£561 GBP
View
Price last confirmed 8 days ago
Retailer 4
-
£568 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£623 GBP
View
B+
Retailer 6
-
£767 GBP
View
Most Expensive
NZ Jewellers
dd68a92b-a1c7-4e9f-a158-86a88e64a449 · Oct 30
£1,694 GBP
$2,267 USD
View
Price last confirmed 7 days ago
6 more retailers have this diamond
Prices start from £623 GBPSave up to £143 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 Oval
£623 GBP