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Oval|Natural|GIA

1.20ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 5241085728

Certificate GIA 5241085728

Diamond specifications and retailer prices

From $3,167 AUD
As of November 6, 2026
Save $5,822 AUD (65%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,989 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 G 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 5241085728. Listed at 13 retailers as of November 5, 2026, with prices from $3,167 to $8,989, a $5,822 spread on the same certified stone. NZ Jewellers lists it at $8,989. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle35.75°
OriginNatural
Grading LabGIA
CertificateGIA 5241085728
Dimensions8.21 × 5.80 × 3.74 mm
L/W Ratio1.42
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather, Needle
Top View
8.21 mm5.80 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5241085728
Side View
Table 57.0%CrownGirdle: STK-VTKPavilion 35.75°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,989 AUD|Low: $3,167 AUD|High: $9,200 AUD|Avg: $5,142 AUD|+12.1%
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
November 6, 2026
Retailer 3$3,167 AUD
Retailer 10$3,730 AUD
Retailer 4$4,049 AUD
Retailer 6$4,170 AUD
Retailer 12$4,299 AUD
Retailer 7$4,410 AUD
Retailer 13$4,465 AUD
Retailer 11$4,667 AUD
Retailer 8$4,998 AUD
Retailer 2$5,366 AUD
Retailer 5$6,816 AUD
Retailer 9$7,169 AUD
NZ Jewellers$8,989 AUD

25 data points across 13 retailers

13 retailers$3,167 AUD to $8,989 AUD

A
Cheapest Retailer
-
$3,167 AUD
Retailer 2
-
$3,730 AUD
View
Price last confirmed 3 days ago
A
Retailer 3
-
$4,049 AUD
View
A
Retailer 4
-
$4,170 AUD
View
A
Retailer 5
-
$4,299 AUD
View
A
Retailer 6
-
$4,410 AUD
View
B+
Retailer 7
-
$4,465 AUD
View
B+
Retailer 8
-
$4,667 AUD
View
B+
Retailer 9
-
$4,998 AUD
View
B+
Retailer 10
-
$5,366 AUD
View
Retailer 11
-
$6,816 AUD
View
Price last confirmed 17 days ago
B
Retailer 12
-
$7,169 AUD
View
Most Expensive
B
NZ Jewellers
62d0dd81-8892-46e2-83b0-45d957ac0695 · Nov 5
$8,989 AUD
$6,176 USD
View
12 more retailers have this diamond
Prices start from $3,167 AUDSave up to $5,822 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
$3,167 AUD