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Oval|Natural|GIA

1.20ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 6542557206

Certificate GIA 6542557206

Diamond specifications and retailer prices

From $2,314 AUD
As of November 6, 2026
Save $426 AUD (16%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,463 AUD at NZ Jewellers · As of September 25, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542557206. Listed at 15 retailers as of November 6, 2026, with a relatively tight 18% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle39.3°
OriginNatural
Grading LabGIA
CertificateGIA 6542557206
Dimensions8.05 × 5.79 × 3.81 mm
L/W Ratio1.39
Top View
8.05 mm5.79 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542557206
Side View
Table 60.0%CrownGirdle: THK-VTKPavilion 39.3°Culet: NoneDepth 65.8%

Caratlytics Score

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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: $2,634 AUD|Low: $1,844 AUD|High: $4,643 AUD|Avg: $2,755 AUD|+0.2%
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
Retailer 14
Retailer 15
November 5, 2026
Retailer 14$1,844 AUD
Retailer 12$2,067 AUD
Retailer 15$2,083 AUD
Retailer 4$2,096 AUD
Retailer 13$2,173 AUD
Retailer 8$2,314 AUD
Retailer 11$2,323 AUD
Retailer 9$2,365 AUD
Retailer 6$2,454 AUD
Retailer 1$2,634 AUD
Retailer 3$2,729 AUD
Retailer 10$3,004 AUD
Retailer 5$3,377 AUD
Retailer 2$3,756 AUD
Retailer 7$4,385 AUD

31 data points across 15 retailers

15 retailers$2,314 AUD to $2,741 AUD

Retailer 1
-
$1,844 AUD
Price last confirmed 12 days ago
Retailer 2
-
$2,067 AUD
View
Price last confirmed 14 days ago
Retailer 3
-
$2,096 AUD
View
Price last confirmed 13 days ago
Retailer 4
-
$2,173 AUD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$2,314 AUD
View
Retailer 6
-
$2,323 AUD
View
Price last confirmed 15 days ago
Retailer 7
-
$2,365 AUD
View
Price last confirmed 14 days ago
A
Retailer 8
-
$2,634 AUD
View
Retailer 9
-
$2,729 AUD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
$2,741 AUD
View
Retailer 11
-
$2,904 AUD
View
Price last confirmed 44 days ago
Retailer 12
-
$3,004 AUD
View
Price last confirmed 15 days ago
Retailer 13
-
$3,756 AUD
View
Price last confirmed 16 days ago
Retailer 14
-
$4,385 AUD
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
c32a7255-537e-4f9e-870b-c9dfb57e7829 · Sep 25
$6,463 AUD
$4,441 USD
View
Price last confirmed 42 days ago
14 more retailers have this diamond
Prices start from $2,314 AUDSave up to $426 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
$2,314 AUD