Oval|Natural|GIA

1.28ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 2547992369

Certificate GIA 2547992369

Diamond specifications and retailer prices

From £793 GBP
As of November 1, 2026
Save £686 GBP (46%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,675 GBP at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 1.28ct natural oval diamond

This 1.28ct 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 stated by the retailer rather than the lab and certified by GIA 2547992369. Listed at 20 retailers as of November 1, 2026, with a 86% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.28
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2547992369
Dimensions9.11 × 5.75 × 3.59 mm
L/W Ratio1.58
Top View
9.11 mm5.75 mm1.28 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547992369
Side View
Table 60.0%CrownGirdle: Very ThickPavilionCulet: NDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,591 GBP|Low: £784 GBP|High: £2,761 GBP|Avg: £1,319 GBP|-6.1%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 13£793 GBP
Retailer 6£984 GBP
Retailer 2£1,035 GBP
Retailer 4£1,062 GBP
Retailer 18£1,062 GBP
Retailer 5£1,080 GBP
Retailer 3£1,112 GBP
Retailer 10£1,132 GBP
Retailer 14£1,136 GBP
Retailer 17£1,163 GBP
Retailer 7£1,177 GBP
Retailer 12£1,184 GBP
Retailer 8£1,226 GBP
Retailer 15£1,296 GBP
Retailer 16£1,393 GBP
Retailer 11£1,479 GBP
Retailer 9£1,924 GBP
NZ Jewellers£2,591 GBP

26 data points across 18 retailers

20 retailers£793 GBP to £1,479 GBP

A
Cheapest Retailer
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£793 GBP
A
Retailer 2
-
£984 GBP
View
A
Retailer 3
-
£1,035 GBP
View
Retailer 4
-
£1,062 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
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£1,062 GBP
View
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Retailer 6
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£1,080 GBP
View
Retailer 7
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£1,112 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£1,132 GBP
View
Price last confirmed 10 days ago
Retailer 9
-
£1,136 GBP
View
Price last confirmed 4 days ago
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Retailer 10
-
£1,163 GBP
View
A
Retailer 11
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£1,177 GBP
View
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Retailer 12
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£1,184 GBP
View
A
Retailer 13
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£1,226 GBP
View
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Retailer 14
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£1,296 GBP
View
Retailer 15
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£1,346 GBP
View
Price last confirmed 69 days ago
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Retailer 16
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£1,393 GBP
View
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Retailer 17
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£1,479 GBP
View
Retailer 18
-
£1,924 GBP
View
Price last confirmed 12 days ago
Retailer 19
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£2,591 GBP
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
54abf051-94da-4bff-b19f-2a1e8249a491 · Oct 14
£2,675 GBP
$3,581 USD
View
Price last confirmed 23 days ago
19 more retailers have this diamond
Prices start from £793 GBPSave up to £686 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
1.28ct Oval
£793 GBP