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Oval|Natural|GIA

1.31ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 2554026545

Certificate GIA 2554026545

Diamond specifications and retailer prices

From £1,724 GBP
As of November 5, 2026
Save £2,574 GBP (60%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,298 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural oval diamond

This 1.31ct 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2554026545. Listed at 17 retailers as of November 5, 2026, with prices from £1,724 to £4,298, a £2,574 spread on the same certified stone. NZ Jewellers lists it at £4,298. 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

1.31
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.5°
Pavilion angle37.1°
OriginNatural
Grading LabGIA
CertificateGIA 2554026545
Dimensions8.28 × 6.08 × 3.91 mm
L/W Ratio1.36
Top View
8.28 mm6.08 mm1.31 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554026545
Side View
Table 59.0%Crown 38.5°Girdle: THK-VTKPavilion 37.1°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £4,298 GBP|Low: £1,705 GBP|High: £4,298 GBP|Avg: £2,369 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
November 6, 2026
Retailer 8£1,724 GBP
Retailer 2£1,771 GBP
Retailer 4£1,841 GBP
Retailer 3£2,021 GBP
Retailer 10£2,056 GBP
Retailer 12£2,056 GBP
Retailer 11£2,134 GBP
Retailer 6£2,176 GBP
Retailer 5£2,264 GBP
Retailer 13£2,372 GBP
Retailer 7£2,509 GBP
Retailer 9£3,592 GBP
NZ Jewellers£4,298 GBP

45 data points across 13 retailers

17 retailers£1,724 GBP to £4,298 GBP

A
Cheapest Retailer
-
£1,724 GBP
A
Retailer 2
-
£1,771 GBP
View
B+
Retailer 3
-
£1,841 GBP
View
B+
Retailer 4
-
£2,021 GBP
View
Retailer 5
-
£2,056 GBP
View
Price last confirmed 39 days ago
B+
Retailer 6
-
£2,056 GBP
View
Retailer 7
-
£2,056 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£2,134 GBP
View
B+
Retailer 9
-
£2,161 GBP
View
B+
Retailer 10
-
£2,176 GBP
View
B
Retailer 11
-
£2,264 GBP
View
B
Retailer 12
-
£2,372 GBP
View
Retailer 13
-
£2,372 GBP
View
Price last confirmed 38 days ago
B
Retailer 14
-
£2,509 GBP
View
B
Retailer 15
-
£3,592 GBP
View
Retailer 16
-
£4,298 GBP
View
Price last confirmed 39 days ago
Most Expensive
C
NZ Jewellers
e6af802e-701c-4833-b52c-7e6757904c6e · Nov 5
£4,298 GBP
$5,753 USD
View
16 more retailers have this diamond
Prices start from £1,724 GBPSave up to £2,574 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
1.31ct Oval
£1,724 GBP