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Oval|Natural|GIA

1.35ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 7508688150

Certificate GIA 7508688150

Diamond specifications and retailer prices

From £1,596 GBP
As of November 6, 2026
Save £3,036 GBP (66%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,631 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.35ct natural oval diamond

This 1.35ct 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 7508688150. Listed at 20 retailers as of November 5, 2026, with prices from £1,596 to £4,631, a £3,036 spread on the same certified stone. NZ Jewellers lists it at £4,631. 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

1.35
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7508688150
Dimensions9.36 × 6.05 × 3.69 mm
L/W Ratio1.55
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Pinpoint
Top View
9.36 mm6.05 mm1.35 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7508688150
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.0%

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: £1,596 GBP|Low: £1,596 GBP|High: £3,744 GBP|Avg: £2,393 GBP|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1£1,596 GBP
Retailer 8£1,626 GBP
Retailer 9£2,013 GBP
Retailer 2£2,149 GBP
Retailer 3£2,258 GBP
Retailer 5£2,344 GBP
Retailer 7£2,592 GBP
Retailer 4£2,704 GBP
Retailer 6£3,694 GBP

29 data points across 9 retailers

20 retailers£1,596 GBP to £4,631 GBP

A
Cheapest Retailer
-
£1,596 GBP
A
Retailer 2
-
£1,626 GBP
View
A
Retailer 3
-
£1,892 GBP
View
B+
Retailer 4
-
£1,963 GBP
View
B+
Retailer 5
-
£1,984 GBP
View
Retailer 6
-
£2,013 GBP
View
Price last confirmed 19 days ago
B+
Retailer 7
-
£2,149 GBP
View
B+
Retailer 8
-
£2,163 GBP
View
Retailer 9
-
£2,215 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£2,215 GBP
View
B+
Retailer 11
-
£2,258 GBP
View
B+
Retailer 12
-
£2,300 GBP
View
B+
Retailer 13
-
£2,321 GBP
View
B+
Retailer 14
-
£2,344 GBP
View
B+
Retailer 15
-
£2,556 GBP
View
B+
Retailer 16
-
£2,592 GBP
View
B
Retailer 17
-
£2,704 GBP
View
B
Retailer 18
-
£3,238 GBP
View
B
Retailer 19
-
£3,694 GBP
View
Most Expensive
B
NZ Jewellers
269cb57b-a638-4a32-8fef-85ac1a2faaea · Nov 5
£4,631 GBP
$6,199 USD
View
19 more retailers have this diamond
Prices start from £1,596 GBPSave up to £3,036 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
1.35ct Oval
£1,596 GBP