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Oval|Natural|GIA

1.30ct J SI1 Oval Natural Diamond

ID • J/SI1 • GIA 1549153020

Certificate GIA 1549153020

Diamond specifications and retailer prices

From £2,016 GBP
HK$21,100 HKD
As of November 1, 2026
Save £2,541 GBP (56%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £4,556 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 1549153020. Listed at 26 retailers as of October 30, 2026, with prices from £2,016 to £4,556, a £2,541 spread on the same certified stone. NZ Jewellers lists it at £4,556. 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 angle41.32°
Pavilion angle35.72°
OriginNatural
Grading LabGIA
CertificateGIA 1549153020
Dimensions8.32 × 5.94 × 3.79 mm
L/W Ratio1.40
Key to symbols
Crystal, Feather, Pinpoint
Top View
8.32 mm5.94 mm1.30 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549153020
Side View
Table 63.0%Crown 41.32°Girdle: THK-VTKPavilion 35.72°Culet: NoneDepth 63.7%

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: £2,028 GBP|Low: £2,016 GBP|High: £4,426 GBP|Avg: £2,796 GBP|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7£2,016 GBP
Retailer 1£2,028 GBP
Retailer 10£2,291 GBP
Retailer 2£2,414 GBP
Retailer 9£2,493 GBP
Retailer 3£2,551 GBP
Retailer 5£2,733 GBP
Retailer 8£3,062 GBP
Retailer 6£3,215 GBP
Retailer 4£4,374 GBP

25 data points across 10 retailers

26 retailers£2,016 GBP to £4,556 GBP

B+
Cheapest Retailer
-
£2,016 GBP
HK$21,100 HKD
A
Retailer 2
-
£2,028 GBP
₹258,770 INR
View
B+
Retailer 3
-
£2,233 GBP
$2,992 USD
View
B+
Retailer 4
-
£2,291 GBP
SGD 4,149 SGD
View
B+
Retailer 5
-
£2,322 GBP
$3,111 USD
View
B+
Retailer 6
-
£2,414 GBP
$3,234 USD
View
Final sale: no returns
B+
Retailer 7
-
£2,493 GBP
$3,340 USD
View
B
Retailer 8
-
£2,519 GBP
$3,375 USD
View
B+
Retailer 9
-
£2,551 GBP
View
B
Retailer 10
-
£2,585 GBP
$3,464 USD
View
B
Retailer 11
-
£2,615 GBP
$3,504 USD
View
B
Retailer 12
-
£2,615 GBP
$3,504 USD
View
B
Retailer 13
-
£2,716 GBP
$3,639 USD
View
B
Retailer 14
-
£2,724 GBP
$3,649 USD
View
B+
Retailer 15
-
£2,733 GBP
View
B
Retailer 16
-
£2,784 GBP
$3,730 USD
View
B
Retailer 17
-
£2,792 GBP
$3,741 USD
View
Retailer 18
-
£2,804 GBP
A$5,781 AUD
View
Price last confirmed 28 days ago
B
Retailer 19
-
£2,805 GBP
SGD 5,079 SGD
View
B
Retailer 20
-
£3,018 GBP
$4,044 USD
View
B
Retailer 21
-
£3,062 GBP
€3,907 EUR
View
B
Retailer 22
-
£3,215 GBP
ZAR 69,590 ZAR
View
B
Retailer 23
-
£3,794 GBP
$5,083 USD
View
B
Retailer 24
-
£3,900 GBP
$5,225 USD
View
B
Retailer 25
-
£4,374 GBP
View
Most Expensive
B
NZ Jewellers
8dec82a7-74db-4caa-b783-4ae9c54930b4 · Oct 30
£4,556 GBP
$6,105 USD
View
25 more retailers have this diamond
Prices start from £2,016 GBPSave up to £2,541 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
£2,016 GBP