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Oval|Natural|GIA

1.30ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 5566783494

Certificate GIA 5566783494

Diamond specifications and retailer prices

From £1,328 GBP
As of November 6, 2026
Save £2,326 GBP (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,654 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566783494. Listed at 13 retailers as of November 5, 2026, with prices from £1,328 to £3,654, a £2,326 spread on the same certified stone. NZ Jewellers lists it at £3,654. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5566783494
Dimensions8.41 × 6.08 × 3.85 mm
L/W Ratio1.38
Top View
8.41 mm6.08 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 5566783494
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.3%

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 6
Current: £3,654 GBP|Low: £1,328 GBP|High: £3,654 GBP|Avg: £2,004 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 2£1,328 GBP
Retailer 11£1,329 GBP
Retailer 10£1,579 GBP
Retailer 6£1,695 GBP
Retailer 3£1,747 GBP
Retailer 12£1,748 GBP
Retailer 4£1,828 GBP
Retailer 7£1,899 GBP
Retailer 9£1,917 GBP
Retailer 5£2,016 GBP
Retailer 8£2,133 GBP
Retailer 13£2,564 GBP
NZ Jewellers£3,654 GBP

5 data points across 13 retailers

13 retailers£1,328 GBP to £3,654 GBP

A
Cheapest Retailer
-
£1,328 GBP
A
Retailer 2
-
£1,329 GBP
View
A
Retailer 3
-
£1,579 GBP
View
A
Retailer 4
-
£1,695 GBP
View
B+
Retailer 5
-
£1,747 GBP
View
B+
Retailer 6
-
£1,748 GBP
View
B+
Retailer 7
-
£1,828 GBP
View
B+
Retailer 8
-
£1,899 GBP
View
B+
Retailer 9
-
£1,917 GBP
View
B+
Retailer 10
-
£2,016 GBP
View
B+
Retailer 11
-
£2,133 GBP
View
B
Retailer 12
-
£2,564 GBP
View
Most Expensive
B
NZ Jewellers
c23b725b-361b-4e93-ae5d-b2f17a06b8d2 · Nov 5
£3,654 GBP
$4,891 USD
View
12 more retailers have this diamond
Prices start from £1,328 GBPSave up to £2,326 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
£1,328 GBP