Oval|Natural|GIA

1.30ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 6555235902

Certificate GIA 6555235902

Diamond specifications and retailer prices

From £2,486 GBP
As of November 6, 2026
Save £3,119 GBP (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,756 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555235902. Listed at 16 retailers as of November 5, 2026, with a 125% 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555235902
Dimensions8.34 × 5.99 × 3.81 mm
L/W Ratio1.39
Top View
8.34 mm5.99 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555235902
Side View
Table 54.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 63.6%

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: £5,606 GBP|Low: £2,431 GBP|High: £5,606 GBP|Avg: £3,390 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
Retailer 13
Retailer 14
November 6, 2026
Retailer 9£2,486 GBP
Retailer 2£2,498 GBP
Retailer 12£2,970 GBP
Retailer 5£3,041 GBP
Retailer 7£3,121 GBP
Retailer 14£3,157 GBP
Retailer 3£3,217 GBP
Retailer 11£3,217 GBP
Retailer 13£3,403 GBP
Retailer 4£3,431 GBP
Retailer 6£3,712 GBP
Retailer 10£3,713 GBP
Retailer 8£5,110 GBP
NZ Jewellers£5,606 GBP

39 data points across 14 retailers

16 retailers£2,486 GBP to £5,606 GBP

A
Cheapest Retailer
-
£2,486 GBP
A
Retailer 2
-
£2,498 GBP
View
B+
Retailer 3
-
£2,970 GBP
View
Final sale: no returns
B+
Retailer 4
-
£3,041 GBP
View
B+
Retailer 5
-
£3,121 GBP
View
Retailer 6
-
£3,157 GBP
View
Price last confirmed 11 days ago
B+
Retailer 7
-
£3,184 GBP
View
B+
Retailer 8
-
£3,217 GBP
View
B+
Retailer 9
-
£3,217 GBP
View
B+
Retailer 10
-
£3,403 GBP
View
Retailer 11
-
£3,431 GBP
View
Price last confirmed 28 days ago
B+
Retailer 12
-
£3,712 GBP
View
B
Retailer 13
-
£3,713 GBP
View
B
Retailer 14
-
£5,110 GBP
View
B
Retailer 15
-
£5,606 GBP
View
Most Expensive
NZ Jewellers
b5e39885-ee8b-4b0d-8d43-46e2d12d607e · Aug 30
£5,756 GBP
$7,704 USD
View
Price last confirmed 68 days ago
15 more retailers have this diamond
Prices start from £2,486 GBPSave up to £3,119 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
£2,486 GBP