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Oval|Natural|GIA

1.30ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 2548233328

Certificate GIA 2548233328

Diamond specifications and retailer prices

From £1,290 GBP
HK$13,500 HKD
As of October 31, 2026
Save £2,385 GBP (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,675 GBP at NZ Jewellers · As of October 30, 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 J 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 2548233328. Listed at 10 retailers as of October 30, 2026, with prices from £1,290 to £3,675, a £2,385 spread on the same certified stone. NZ Jewellers lists it at £3,675. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.76°
OriginNatural
Grading LabGIA
CertificateGIA 2548233328
Dimensions8.77 × 5.93 × 3.71 mm
L/W Ratio1.48
Top View
8.77 mm5.93 mm1.30 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2548233328
Side View
Table 65.0%CrownGirdle: THK-VTKPavilion 36.76°Culet: NDepth 62.6%

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: Oct 31
Current: £3,675 GBP|Low: £1,280 GBP|High: £3,926 GBP|Avg: £2,285 GBP|-6.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6£1,290 GBP
Retailer 5£1,625 GBP
Retailer 11£1,678 GBP
Retailer 4£1,728 GBP
Retailer 10£1,799 GBP
Retailer 9£1,839 GBP
Retailer 8£2,024 GBP
Retailer 7£2,179 GBP
Retailer 2£3,080 GBP
Retailer 3£3,423 GBP
NZ Jewellers£3,675 GBP

32 data points across 11 retailers

10 retailers£1,290 GBP to £3,675 GBP

A
Cheapest Retailer
-
£1,290 GBP
HK$13,500 HKD
A
Retailer 2
-
£1,625 GBP
$2,177 USD
View
B+
Retailer 3
-
£1,678 GBP
$2,249 USD
View
Final sale: no returns
A
Retailer 4
-
£1,728 GBP
$2,315 USD
View
A
Retailer 5
-
£1,799 GBP
SGD 3,257 SGD
View
A
Retailer 6
-
£1,839 GBP
$2,464 USD
View
B+
Retailer 7
-
£2,024 GBP
$2,712 USD
View
B+
Retailer 8
-
£2,179 GBP
€2,780 EUR
View
B
Retailer 9
-
£3,080 GBP
View
Most Expensive
B
NZ Jewellers
3a856420-5296-4e42-be6f-f3a6666bd504 · Oct 30
£3,675 GBP
$4,924 USD
View
9 more retailers have this diamond
Prices start from £1,290 GBPSave up to £2,385 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
£1,290 GBP