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Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 7551184900

Certificate GIA 7551184900

Diamond specifications and retailer prices

From $2,332 AUD
HK$12,800 HKD
As of October 31, 2026
Save $4,094 AUD (64%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,426 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551184900. Listed at 23 retailers as of October 30, 2026, with prices from $2,332 to $6,426, a $4,094 spread on the same certified stone. NZ Jewellers lists it at $6,426. 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

1.20
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.4°
Pavilion angle37.8°
OriginNatural
Grading LabGIA
CertificateGIA 7551184900
Dimensions8.22 × 5.92 × 3.84 mm
L/W Ratio1.39
Girdle conditionFaceted
Top View
8.22 mm5.92 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551184900
Side View
Table 57.0%Crown 38.4°Girdle: MED-THKPavilion 37.8°Culet: NoneDepth 64.9%

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: $6,426 AUD|Low: $2,314 AUD|High: $6,615 AUD|Avg: $3,349 AUD|-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
Retailer 22
October 31, 2026
Retailer 2$2,332 AUD
Retailer 12$2,516 AUD
Retailer 11$2,571 AUD
Retailer 19$2,574 AUD
Retailer 8$2,671 AUD
Retailer 7$2,701 AUD
Retailer 5$2,785 AUD
Retailer 10$2,785 AUD
Retailer 3$2,840 AUD
Retailer 6$2,913 AUD
Retailer 4$2,921 AUD
Retailer 17$3,007 AUD
Retailer 20$3,089 AUD
Retailer 21$3,089 AUD
Retailer 22$3,203 AUD
Retailer 15$3,213 AUD
Retailer 18$3,372 AUD
Retailer 9$3,753 AUD
Retailer 13$3,778 AUD
Retailer 16$3,915 AUD
Retailer 14$5,413 AUD
NZ Jewellers$6,426 AUD

24 data points across 22 retailers

23 retailers$2,332 AUD to $6,426 AUD

A
Cheapest Retailer
-
$2,332 AUD
HK$12,800 HKD
A
Retailer 2
-
$2,516 AUD
$1,767 USD
View
B+
Retailer 3
-
$2,571 AUD
$1,806 USD
View
Final sale: no returns
A
Retailer 4
-
$2,574 AUD
$1,808 USD
View
A
Retailer 5
-
$2,671 AUD
$1,876 USD
View
A
Retailer 6
-
$2,701 AUD
$1,897 USD
View
B+
Retailer 7
-
$2,785 AUD
$1,956 USD
View
B+
Retailer 8
-
$2,785 AUD
$1,956 USD
View
B+
Retailer 9
-
$2,840 AUD
$1,995 USD
View
B+
Retailer 10
-
$2,913 AUD
$2,046 USD
View
B+
Retailer 11
-
$2,921 AUD
$2,052 USD
View
B+
Retailer 12
-
$3,007 AUD
£1,663 GBP
View
B+
Retailer 13
-
$3,089 AUD
$2,170 USD
View
B+
Retailer 14
-
$3,089 AUD
$2,170 USD
View
B+
Retailer 15
-
$3,203 AUD
$2,250 USD
View
B+
Retailer 16
-
$3,213 AUD
$2,257 USD
View
B+
Retailer 17
-
$3,372 AUD
£1,865 GBP
View
B
Retailer 18
-
$3,753 AUD
$2,636 USD
View
B+
Retailer 19
-
$3,778 AUD
ZAR 42,872 ZAR
View
B+
Retailer 20
-
$3,915 AUD
€2,619 EUR
View
Retailer 21
-
$3,983 AUD
View
Price last confirmed 24 days ago
B
Retailer 22
-
$5,413 AUD
£2,994 GBP
View
Most Expensive
B
NZ Jewellers
dc54fc18-cd9f-41be-b7cc-6cae77bc9f17 · Oct 30
$6,426 AUD
$4,514 USD
View
22 more retailers have this diamond
Prices start from $2,332 AUDSave up to $4,094 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.

A
1.20ct Oval
$2,332 AUD