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Oval|Natural|GIA

1.30ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 2558134311

Certificate GIA 2558134311

Diamond specifications and retailer prices

From £1,549 GBP
As of November 6, 2026
Save £2,125 GBP (58%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,017 GBP at NZ Jewellers · As of August 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558134311. Listed at 10 retailers as of November 4, 2026, with a 137% 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

1.30
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.16°
OriginNatural
Grading LabGIA
CertificateGIA 2558134311
Dimensions8.38 × 6.06 × 3.83 mm
L/W Ratio1.38
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
8.38 mm6.06 mm1.30 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558134311
Side View
Table 64.0%CrownGirdle: STK-VTKPavilion 37.16°Culet: NoneDepth 63.1%

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 6
Current: £2,067 GBP|Low: £1,549 GBP|High: £3,804 GBP|Avg: £2,344 GBP|-7.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7£1,549 GBP
Retailer 6£1,937 GBP
Retailer 1£2,067 GBP
Retailer 9£2,075 GBP
Retailer 2£2,155 GBP
Retailer 4£2,183 GBP
Retailer 5£2,422 GBP
Retailer 8£3,232 GBP
Retailer 3£3,674 GBP

41 data points across 9 retailers

10 retailers£1,549 GBP to £3,674 GBP

A
Cheapest Retailer
-
£1,549 GBP
A
Retailer 2
-
£1,937 GBP
View
A
Retailer 3
-
£2,067 GBP
View
A
Retailer 4
-
£2,075 GBP
View
Final sale: no returns
A
Retailer 5
-
£2,155 GBP
View
A
Retailer 6
-
£2,183 GBP
View
A
Retailer 7
-
£2,422 GBP
View
Retailer 8
-
£3,232 GBP
View
Price last confirmed 13 days ago
B+
Retailer 9
-
£3,674 GBP
View
Most Expensive
NZ Jewellers
136ff408-2623-45f9-8cd4-07025e25fe9b · Aug 30
£4,017 GBP
$5,377 USD
View
Price last confirmed 68 days ago
9 more retailers have this diamond
Prices start from £1,549 GBPSave up to £2,125 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
£1,549 GBP