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Oval|Natural|IGI

1.30ct J SI2 Oval Natural Diamond

VG • J/SI2 • IGI 808620135

Shape and cutting style on the report: Oval brilliant

Certificate IGI 808620135

Diamond specifications and retailer prices

From £1,257 GBP
As of November 4, 2026
Save £2,108 GBP (63%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,365 GBP at NZ Jewellers · As of November 5, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 808620135. Listed at 12 retailers as of November 4, 2026, with prices from £1,257 to £3,365, a £2,108 spread on the same certified stone. NZ Jewellers lists it at £3,365. 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
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 808620135
Dimensions8.46 × 6.00 × 3.86 mm
L/W Ratio1.41
Girdle conditionFaceted
Top View
8.46 mm6.00 mm1.30 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 808620135
Side View
Table 64.0%Crown 38.2°Girdle: STK-THKPavilion 40.9°Culet: NoneDepth 64.3%

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 4
Current: £3,365 GBP|Low: £1,257 GBP|High: £3,365 GBP|Avg: £1,703 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
November 6, 2026
Retailer 3£1,257 GBP
Retailer 4£1,347 GBP
Retailer 2£1,375 GBP
Retailer 9£1,379 GBP
Retailer 12£1,379 GBP
Retailer 11£1,443 GBP
Retailer 8£1,446 GBP
Retailer 7£1,482 GBP
Retailer 10£1,591 GBP
Retailer 6£1,883 GBP
Retailer 5£2,416 GBP
NZ Jewellers£3,365 GBP

19 data points across 12 retailers

12 retailers£1,257 GBP to £3,365 GBP

A
Cheapest Retailer
-
£1,257 GBP
B+
Retailer 2
-
£1,347 GBP
View
A
Retailer 3
-
£1,375 GBP
View
Retailer 4
-
£1,379 GBP
View
Price last confirmed 12 days ago
B+
Retailer 5
-
£1,379 GBP
View
B+
Retailer 6
-
£1,443 GBP
View
B+
Retailer 7
-
£1,446 GBP
View
B+
Retailer 8
-
£1,482 GBP
View
B+
Retailer 9
-
£1,591 GBP
View
B+
Retailer 10
-
£1,883 GBP
View
B
Retailer 11
-
£2,416 GBP
View
Most Expensive
C
NZ Jewellers
8430a3c7-a146-4034-8855-027b6df033d8 · Nov 5
£3,365 GBP
$4,504 USD
View
11 more retailers have this diamond
Prices start from £1,257 GBPSave up to £2,108 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
£1,257 GBP