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Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

ID • I/SI1 • GIA 6521715530

Certificate GIA 6521715530

Diamond specifications and retailer prices

From $3,483 AUD
As of November 6, 2026
Save $4,419 AUD (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,901 AUD at NZ Jewellers · As of November 5, 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 I 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 6521715530. Listed at 21 retailers as of November 5, 2026, with prices from $3,483 to $7,901, a $4,419 spread on the same certified stone. NZ Jewellers lists it at $7,901. 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6521715530
Dimensions8.25 × 5.99 × 3.75 mm
L/W Ratio1.38
Top View
8.25 mm5.99 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521715530
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.6%

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 6
Current: $7,901 AUD|Low: $3,483 AUD|High: $8,041 AUD|Avg: $5,142 AUD|-1.7%
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
November 6, 2026
Retailer 8$3,483 AUD
Retailer 2$3,620 AUD
Retailer 6$4,157 AUD
Retailer 17$4,177 AUD
Retailer 10$4,186 AUD
Retailer 19$4,366 AUD
Retailer 13$4,400 AUD
Retailer 5$4,535 AUD
Retailer 11$4,615 AUD
Retailer 15$4,665 AUD
Retailer 20$4,710 AUD
Retailer 4$4,743 AUD
Retailer 14$4,852 AUD
Retailer 7$4,905 AUD
Retailer 9$5,234 AUD
Retailer 3$5,308 AUD
Retailer 12$5,317 AUD
Retailer 16$5,535 AUD
Retailer 18$7,565 AUD
NZ Jewellers$7,901 AUD

22 data points across 20 retailers

21 retailers$3,483 AUD to $7,901 AUD

A
Cheapest Retailer
-
$3,483 AUD
A
Retailer 2
-
$3,620 AUD
View
B+
Retailer 3
-
$4,157 AUD
View
B+
Retailer 4
-
$4,177 AUD
View
B+
Retailer 5
-
$4,186 AUD
View
Final sale: no returns
B+
Retailer 6
-
$4,366 AUD
View
B+
Retailer 7
-
$4,397 AUD
View
B+
Retailer 8
-
$4,400 AUD
View
B+
Retailer 9
-
$4,535 AUD
View
Retailer 10
-
$4,615 AUD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
$4,665 AUD
View
B+
Retailer 12
-
$4,710 AUD
View
B+
Retailer 13
-
$4,743 AUD
View
B+
Retailer 14
-
$4,852 AUD
View
B+
Retailer 15
-
$4,905 AUD
View
Retailer 16
-
$4,991 AUD
View
Price last confirmed 33 days ago
B+
Retailer 17
-
$5,234 AUD
View
B+
Retailer 18
-
$5,308 AUD
View
B+
Retailer 19
-
$5,535 AUD
View
B
Retailer 20
-
$7,565 AUD
View
Most Expensive
B
NZ Jewellers
4acfd102-0c1c-4864-8d6f-9646c81ca9b4 · Nov 5
$7,901 AUD
$5,429 USD
View
20 more retailers have this diamond
Prices start from $3,483 AUDSave up to $4,419 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
$3,483 AUD