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Oval|Natural|GIA

1.30ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 6492525421

Certificate GIA 6492525421

Diamond specifications and retailer prices

From £2,821 GBP
As of November 6, 2026
Save £3,573 GBP (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £6,394 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 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 6492525421. Listed at 21 retailers as of November 5, 2026, with prices from £2,821 to £6,394, a £3,573 spread on the same certified stone. NZ Jewellers lists it at £6,394. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6492525421
Dimensions8.73 × 5.83 × 3.75 mm
L/W Ratio1.50
Top View
8.73 mm5.83 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6492525421
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 64.4%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £3,709 GBP|Low: £2,821 GBP|High: £6,154 GBP|Avg: £3,867 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8£2,821 GBP
Retailer 10£3,021 GBP
Retailer 6£3,056 GBP
Retailer 9£3,196 GBP
Retailer 1£3,709 GBP
Retailer 3£3,764 GBP
Retailer 2£3,854 GBP
Retailer 7£4,325 GBP
Retailer 4£4,664 GBP
Retailer 5£6,073 GBP

35 data points across 10 retailers

21 retailers£2,821 GBP to £6,394 GBP

B+
Cheapest Retailer
-
£2,821 GBP
B+
Retailer 2
-
£3,021 GBP
View
B+
Retailer 3
-
£3,056 GBP
View
B+
Retailer 4
-
£3,196 GBP
View
Final sale: no returns
B+
Retailer 5
-
£3,253 GBP
View
B+
Retailer 6
-
£3,272 GBP
View
Retailer 7
-
£3,464 GBP
View
Price last confirmed 8 days ago
B
Retailer 8
-
£3,464 GBP
View
B
Retailer 9
-
£3,464 GBP
View
B+
Retailer 10
-
£3,709 GBP
View
B+
Retailer 11
-
£3,764 GBP
View
Retailer 12
-
£3,854 GBP
View
Price last confirmed 28 days ago
B
Retailer 13
-
£3,892 GBP
View
B
Retailer 14
-
£3,892 GBP
View
B
Retailer 15
-
£3,933 GBP
View
B
Retailer 16
-
£3,996 GBP
View
B
Retailer 17
-
£4,019 GBP
View
B
Retailer 18
-
£4,325 GBP
View
B
Retailer 19
-
£4,664 GBP
View
B
Retailer 20
-
£6,073 GBP
View
Most Expensive
B
NZ Jewellers
6cfc6515-158d-41f4-8baa-68d804c4e540 · Nov 5
£6,394 GBP
$8,558 USD
View
20 more retailers have this diamond
Prices start from £2,821 GBPSave up to £3,573 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+
1.30ct Oval
£2,821 GBP