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Oval|Natural|GIA

1.30ct J SI1 Oval Natural Diamond

ID • J/SI1 • GIA 7556609890

Certificate GIA 7556609890

Diamond specifications and retailer prices

From £1,825 GBP
HK$19,100 HKD
As of November 1, 2026
Save £2,380 GBP (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,205 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 7556609890. Listed at 21 retailers as of October 30, 2026, with prices from £1,825 to £4,205, a £2,380 spread on the same certified stone. NZ Jewellers lists it at £4,205. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle37.8°
OriginNatural
Grading LabGIA
CertificateGIA 7556609890
Dimensions8.42 × 6.10 × 3.97 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizeNone
Top View
8.42 mm6.10 mm1.30 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556609890
Side View
Table 58.0%Crown 38.9°Girdle: MED-STKPavilion 37.8°Culet: NDepth 65.0%

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 1
Current: £4,205 GBP|Low: £1,815 GBP|High: £4,330 GBP|Avg: £2,585 GBP|-2.9%
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
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 3£1,825 GBP
Retailer 21£1,949 GBP
Retailer 15£1,959 GBP
Retailer 8£1,988 GBP
Retailer 18£2,009 GBP
Retailer 19£2,013 GBP
Retailer 17£2,177 GBP
Retailer 9£2,187 GBP
Retailer 10£2,270 GBP
Retailer 5£2,478 GBP
Retailer 11£2,485 GBP
Retailer 16£2,490 GBP
Retailer 7£2,512 GBP
Retailer 12£2,575 GBP
Retailer 4£2,676 GBP
Retailer 14£2,700 GBP
Retailer 6£2,813 GBP
Retailer 2£2,851 GBP
Retailer 20£2,954 GBP
Retailer 13£4,019 GBP
NZ Jewellers£4,205 GBP

33 data points across 21 retailers

21 retailers£1,825 GBP to £4,205 GBP

A
Cheapest Retailer
-
£1,825 GBP
HK$19,100 HKD
A
Retailer 2
-
£1,949 GBP
$2,612 USD
View
A
Retailer 3
-
£1,959 GBP
$2,625 USD
View
A
Retailer 4
-
£1,988 GBP
$2,664 USD
View
B+
Retailer 5
-
£2,009 GBP
$2,692 USD
View
Final sale: no returns
A
Retailer 6
-
£2,013 GBP
$2,697 USD
View
B+
Retailer 7
-
£2,177 GBP
$2,917 USD
View
B+
Retailer 8
-
£2,187 GBP
$2,930 USD
View
B+
Retailer 9
-
£2,270 GBP
$3,042 USD
View
B+
Retailer 10
-
£2,478 GBP
$3,320 USD
View
B+
Retailer 11
-
£2,485 GBP
$3,330 USD
View
B+
Retailer 12
-
£2,490 GBP
View
B+
Retailer 13
-
£2,512 GBP
$3,366 USD
View
B+
Retailer 14
-
£2,575 GBP
$3,450 USD
View
B
Retailer 15
-
£2,676 GBP
$3,586 USD
View
Retailer 16
-
£2,700 GBP
A$5,566 AUD
View
Price last confirmed 28 days ago
B+
Retailer 17
-
£2,813 GBP
€3,590 EUR
View
B+
Retailer 18
-
£2,851 GBP
$3,820 USD
View
B
Retailer 19
-
£2,954 GBP
ZAR 63,933 ZAR
View
B
Retailer 20
-
£4,019 GBP
View
Most Expensive
B
NZ Jewellers
05f0da9f-f850-4587-9553-0258ab60831e · Oct 30
£4,205 GBP
$5,634 USD
View
20 more retailers have this diamond
Prices start from £1,825 GBPSave up to £2,380 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
£1,825 GBP