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Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6471585558

Certificate GIA 6471585558

Diamond specifications and retailer prices

From $4,641 AUD
As of November 4, 2026
Save $6,468 AUD (58%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $11,109 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 6471585558. Listed at 25 retailers as of November 4, 2026, with prices from $4,641 to $11,109, a $6,468 spread on the same certified stone. NZ Jewellers lists it at $11,109. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.66°
Pavilion angle35.48°
OriginNatural
Grading LabGIA
CertificateGIA 6471585558
Dimensions8.13 × 5.91 × 3.72 mm
L/W Ratio1.38
Top View
8.13 mm5.91 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6471585558
Side View
Table 56.0%Crown 38.66°Girdle: MED-THKPavilion 35.48°Culet: NoneDepth 63.0%

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: Nov 4
Current: $6,421 AUD|Low: $4,897 AUD|High: $10,278 AUD|Avg: $6,712 AUD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 7$4,897 AUD
Retailer 10$5,333 AUD
Retailer 2$5,776 AUD
Retailer 5$6,146 AUD
Retailer 13$6,295 AUD
Retailer 1$6,421 AUD
Retailer 4$6,520 AUD
Retailer 12$6,520 AUD
Retailer 3$6,551 AUD
Retailer 11$6,801 AUD
Retailer 8$7,214 AUD
Retailer 6$7,779 AUD
Retailer 9$10,156 AUD

43 data points across 13 retailers

25 retailers$4,641 AUD to $11,109 AUD

B+
Cheapest Retailer
-
$4,641 AUD
B+
Retailer 2
-
$4,820 AUD
View
B+
Retailer 3
-
$4,897 AUD
View
B+
Retailer 4
-
$5,024 AUD
View
B+
Retailer 5
-
$5,084 AUD
View
Retailer 6
-
$5,181 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$5,333 AUD
View
Final sale: no returns
B+
Retailer 8
-
$5,509 AUD
View
B
Retailer 9
-
$5,763 AUD
View
B
Retailer 10
-
$5,776 AUD
View
Retailer 11
-
$5,776 AUD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$5,776 AUD
View
B
Retailer 13
-
$6,146 AUD
View
B
Retailer 14
-
$6,421 AUD
View
B
Retailer 15
-
$6,520 AUD
View
B
Retailer 16
-
$6,520 AUD
View
B
Retailer 17
-
$6,551 AUD
View
B
Retailer 18
-
$6,666 AUD
View
B
Retailer 19
-
$6,715 AUD
View
B
Retailer 20
-
$6,739 AUD
View
Retailer 21
-
$6,801 AUD
View
Price last confirmed 28 days ago
B
Retailer 22
-
$7,214 AUD
View
B
Retailer 23
-
$7,779 AUD
View
B
Retailer 24
-
$10,156 AUD
View
Most Expensive
B
NZ Jewellers
cea4c828-6781-4416-aa86-39bf35e45881 · Nov 5
$11,109 AUD
$7,633 USD
View
24 more retailers have this diamond
Prices start from $4,641 AUDSave up to $6,468 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
$4,641 AUD