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Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 7551283807

Certificate GIA 7551283807

Diamond specifications and retailer prices

From $2,329 AUD
As of November 6, 2026
Save $4,273 AUD (65%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,226 AUD at NZ Jewellers · As of September 14, 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 7551283807. Listed at 13 retailers as of November 5, 2026, with a 184% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
OriginNatural
Grading LabGIA
CertificateGIA 7551283807
Dimensions8.23 × 5.88 × 3.71 mm
L/W Ratio1.40
Key to symbols
Crystal, Feather
Top View
8.23 mm5.88 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551283807
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 63.2%

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: $6,602 AUD|Low: $2,329 AUD|High: $7,101 AUD|Avg: $3,809 AUD|-7.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8$2,329 AUD
Retailer 10$3,000 AUD
Retailer 9$3,158 AUD
Retailer 3$3,190 AUD
Retailer 2$3,227 AUD
Retailer 7$3,304 AUD
Retailer 6$3,310 AUD
Retailer 11$3,753 AUD
Retailer 4$3,940 AUD
Retailer 5$5,516 AUD
NZ Jewellers$6,602 AUD

43 data points across 11 retailers

13 retailers$2,329 AUD to $6,602 AUD

A
Cheapest Retailer
-
$2,329 AUD
A
Retailer 2
-
$3,000 AUD
View
A
Retailer 3
-
$3,158 AUD
View
A
Retailer 4
-
$3,190 AUD
View
Final sale: no returns
A
Retailer 5
-
$3,227 AUD
View
A
Retailer 6
-
$3,304 AUD
View
B+
Retailer 7
-
$3,310 AUD
View
Retailer 8
-
$3,457 AUD
View
Price last confirmed 53 days ago
B+
Retailer 9
-
$3,753 AUD
View
B+
Retailer 10
-
$3,940 AUD
View
B+
Retailer 11
-
$5,516 AUD
View
B
Retailer 12
-
$6,602 AUD
View
Most Expensive
NZ Jewellers
c6fedaf0-5d0b-43d5-9dfa-53d55f288573 · Sep 14
$7,226 AUD
$4,965 USD
View
Price last confirmed 53 days ago
12 more retailers have this diamond
Prices start from $2,329 AUDSave up to $4,273 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
$2,329 AUD