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Oval|Natural|IGI

1.30ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 737520134

Shape and cutting style on the report: Oval brilliant

Certificate IGI 737520134

Diamond specifications and retailer prices

From £1,043 GBP
As of November 2, 2026
Save £1,567 GBP (60%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,610 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.3ct natural oval diamond

This 1.3ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 737520134. Listed at 7 retailers as of November 2, 2026, with prices from £1,043 to £2,610, a £1,567 spread on the same certified stone. NZ Jewellers lists it at £2,610. 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

1.30
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.3°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 737520134
Dimensions8.31 × 6.03 × 3.96 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Top View
8.31 mm6.03 mm1.30 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 737520134
Side View
Table 59.0%Crown 39.3°Girdle: THN-THKPavilion 40.8°Culet: NoneDepth 65.7%

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 2
Current: £2,610 GBP|Low: £1,043 GBP|High: £2,649 GBP|Avg: £1,419 GBP|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2£1,043 GBP
Retailer 5£1,070 GBP
Retailer 7£1,119 GBP
Retailer 6£1,136 GBP
Retailer 4£1,143 GBP
Retailer 8£1,255 GBP
Retailer 9£1,296 GBP
Retailer 3£1,874 GBP
NZ Jewellers£2,610 GBP

26 data points across 9 retailers

7 retailers£1,043 GBP to £2,610 GBP

A
Cheapest Retailer
-
£1,043 GBP
A
Retailer 2
-
£1,070 GBP
View
B+
Retailer 3
-
£1,119 GBP
View
B+
Retailer 4
-
£1,136 GBP
View
A
Retailer 5
-
£1,143 GBP
View
B+
Retailer 6
-
£1,874 GBP
View
Most Expensive
B
NZ Jewellers
42981292-c3e6-4dfd-a8ad-a7d1fe23447b · Nov 2
£2,610 GBP
$3,493 USD
View
6 more retailers have this diamond
Prices start from £1,043 GBPSave up to £1,567 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
1.30ct Oval
£1,043 GBP