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Oval|Natural|GIA

1.20ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 2556985857

Certificate GIA 2556985857

Diamond specifications and retailer prices

From $2,355 AUD
As of November 6, 2026
Save $4,454 AUD (65%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,808 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556985857. Listed at 14 retailers as of November 5, 2026, with prices from $2,355 to $6,808, a $4,454 spread on the same certified stone. NZ Jewellers lists it at $6,808. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556985857
Dimensions8.02 × 5.80 × 3.75 mm
L/W Ratio1.38
Girdle conditionFaceted
Top View
8.02 mm5.80 mm1.20 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556985857
Side View
Table 61.0%CrownGirdle: THN-ETKPavilionCulet: NDepth 64.6%

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: $6,808 AUD|Low: $2,355 AUD|High: $6,963 AUD|Avg: $3,442 AUD|-2.2%
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
November 6, 2026
Retailer 5$2,355 AUD
Retailer 12$2,544 AUD
Retailer 2$2,707 AUD
Retailer 14$2,791 AUD
Retailer 6$2,855 AUD
Retailer 13$2,860 AUD
Retailer 3$2,921 AUD
Retailer 11$2,991 AUD
Retailer 8$3,032 AUD
Retailer 4$3,221 AUD
Retailer 9$3,407 AUD
Retailer 7$3,791 AUD
Retailer 10$4,877 AUD
NZ Jewellers$6,808 AUD

30 data points across 14 retailers

14 retailers$2,355 AUD to $6,808 AUD

A
Cheapest Retailer
-
$2,355 AUD
B+
Retailer 2
-
$2,544 AUD
View
B+
Retailer 3
-
$2,707 AUD
View
B+
Retailer 4
-
$2,791 AUD
View
Retailer 5
-
$2,855 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$2,860 AUD
View
B+
Retailer 7
-
$2,921 AUD
View
B+
Retailer 8
-
$2,991 AUD
View
B+
Retailer 9
-
$3,032 AUD
View
B+
Retailer 10
-
$3,221 AUD
View
B
Retailer 11
-
$3,407 AUD
View
B
Retailer 12
-
$3,791 AUD
View
B
Retailer 13
-
$4,877 AUD
View
Most Expensive
C
NZ Jewellers
c8401c43-d808-4e40-a303-6562df34a598 · Nov 5
$6,808 AUD
$4,678 USD
View
13 more retailers have this diamond
Prices start from $2,355 AUDSave up to $4,454 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
$2,355 AUD