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Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

VG • J/SI1 • GIA 5513406278

Certificate GIA 5513406278

Diamond specifications and retailer prices

From £2,132 GBP
$2,857 USD
As of October 30, 2026
Save £2,487 GBP (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,619 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5513406278. Listed at 23 retailers as of October 30, 2026, with prices from £2,132 to £4,619, a £2,487 spread on the same certified stone. NZ Jewellers lists it at £4,619. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.97°
Pavilion angle39.42°
OriginNatural
Grading LabGIA
CertificateGIA 5513406278
Dimensions8.00 × 5.85 × 3.72 mm
L/W Ratio1.37
Top View
8.00 mm5.85 mm1.20 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5513406278
Side View
Table 61.0%Crown 41.97°Girdle: STK-VTKPavilion 39.42°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £4,619 GBP|Low: £2,176 GBP|High: £4,619 GBP|Avg: £2,970 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
October 31, 2026
Retailer 10£2,176 GBP
Retailer 11£2,217 GBP
Retailer 5£2,402 GBP
Retailer 13£2,494 GBP
Retailer 8£2,594 GBP
Retailer 3£2,691 GBP
Retailer 6£2,771 GBP
Retailer 4£2,772 GBP
Retailer 12£2,840 GBP
Retailer 7£3,105 GBP
Retailer 2£3,259 GBP
Retailer 9£4,458 GBP
NZ Jewellers£4,619 GBP

35 data points across 13 retailers

23 retailers£2,132 GBP to £4,619 GBP

B+
Cheapest Retailer
-
£2,132 GBP
$2,857 USD
B+
Retailer 2
-
£2,176 GBP
$2,915 USD
View
B
Retailer 3
-
£2,217 GBP
$2,971 USD
View
Final sale: no returns
B
Retailer 4
-
£2,256 GBP
$3,023 USD
View
B
Retailer 5
-
£2,329 GBP
$3,120 USD
View
B
Retailer 6
-
£2,402 GBP
$3,219 USD
View
B
Retailer 7
-
£2,402 GBP
$3,219 USD
View
B
Retailer 8
-
£2,415 GBP
$3,236 USD
View
B
Retailer 9
-
£2,455 GBP
$3,289 USD
View
B
Retailer 10
-
£2,494 GBP
$3,342 USD
View
B
Retailer 11
-
£2,594 GBP
View
B
Retailer 12
-
£2,691 GBP
$3,605 USD
View
B
Retailer 13
-
£2,724 GBP
$3,650 USD
View
B
Retailer 14
-
£2,771 GBP
View
B
Retailer 15
-
£2,772 GBP
$3,714 USD
View
Retailer 16
-
£2,840 GBP
A$5,855 AUD
View
Price last confirmed 22 days ago
B
Retailer 17
-
£2,844 GBP
$3,810 USD
View
B
Retailer 18
-
£2,844 GBP
$3,810 USD
View
B
Retailer 19
-
£2,941 GBP
$3,940 USD
View
B
Retailer 20
-
£3,105 GBP
€3,962 EUR
View
B
Retailer 21
-
£3,259 GBP
ZAR 70,547 ZAR
View
B
Retailer 22
-
£4,458 GBP
View
Most Expensive
C
NZ Jewellers
15877913-03e3-4cdb-8fe0-3ea91c309bcc · Oct 30
£4,619 GBP
$6,189 USD
View
22 more retailers have this diamond
Prices start from £2,132 GBPSave up to £2,487 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.

B+
1.20ct Oval
£2,132 GBP