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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 $4,067 AUD
$2,857 USD
As of October 30, 2026
Save $4,743 AUD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $8,811 AUD 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 $4,067 to $8,811, a $4,743 spread on the same certified stone. NZ Jewellers lists it at $8,811. 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: $8,811 AUD|Low: $4,150 AUD|High: $8,811 AUD|Avg: $5,665 AUD
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$4,150 AUD
Retailer 11$4,230 AUD
Retailer 5$4,583 AUD
Retailer 13$4,758 AUD
Retailer 8$4,948 AUD
Retailer 3$5,132 AUD
Retailer 6$5,286 AUD
Retailer 4$5,287 AUD
Retailer 12$5,417 AUD
Retailer 7$5,922 AUD
Retailer 2$6,217 AUD
Retailer 9$8,503 AUD
NZ Jewellers$8,811 AUD

35 data points across 13 retailers

23 retailers$4,067 AUD to $8,811 AUD

B+
Cheapest Retailer
-
$4,067 AUD
$2,857 USD
B+
Retailer 2
-
$4,150 AUD
$2,915 USD
View
B
Retailer 3
-
$4,230 AUD
$2,971 USD
View
Final sale: no returns
B
Retailer 4
-
$4,304 AUD
$3,023 USD
View
B
Retailer 5
-
$4,442 AUD
$3,120 USD
View
B
Retailer 6
-
$4,583 AUD
$3,219 USD
View
B
Retailer 7
-
$4,583 AUD
$3,219 USD
View
B
Retailer 8
-
$4,607 AUD
$3,236 USD
View
B
Retailer 9
-
$4,682 AUD
$3,289 USD
View
B
Retailer 10
-
$4,758 AUD
$3,342 USD
View
B
Retailer 11
-
$4,948 AUD
£2,737 GBP
View
B
Retailer 12
-
$5,132 AUD
$3,605 USD
View
B
Retailer 13
-
$5,196 AUD
$3,650 USD
View
B
Retailer 14
-
$5,286 AUD
£2,924 GBP
View
B
Retailer 15
-
$5,287 AUD
$3,714 USD
View
Retailer 16
-
$5,417 AUD
View
Price last confirmed 23 days ago
B
Retailer 17
-
$5,424 AUD
$3,810 USD
View
B
Retailer 18
-
$5,424 AUD
$3,810 USD
View
B
Retailer 19
-
$5,609 AUD
$3,940 USD
View
B
Retailer 20
-
$5,922 AUD
€3,962 EUR
View
B
Retailer 21
-
$6,217 AUD
ZAR 70,547 ZAR
View
B
Retailer 22
-
$8,503 AUD
£4,703 GBP
View
Most Expensive
C
NZ Jewellers
15877913-03e3-4cdb-8fe0-3ea91c309bcc · Oct 30
$8,811 AUD
$6,189 USD
View
22 more retailers have this diamond
Prices start from $4,067 AUDSave up to $4,743 AUD

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
$4,067 AUD