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Oval|Natural|GIA

1.20ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 1553993558

Certificate GIA 1553993558

Diamond specifications and retailer prices

From $2,417 AUD
As of November 6, 2026
Save $3,764 AUD (61%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,181 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553993558. Listed at 13 retailers as of November 5, 2026, with prices from $2,417 to $6,181, a $3,764 spread on the same certified stone. NZ Jewellers lists it at $6,181. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1553993558
Dimensions8.14 × 5.91 × 3.70 mm
L/W Ratio1.38
Girdle conditionFaceted
Top View
8.14 mm5.91 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1553993558
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 62.7%

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 6
Current: $6,181 AUD|Low: $2,417 AUD|High: $6,181 AUD|Avg: $3,512 AUD
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 5$2,417 AUD
Retailer 13$2,671 AUD
Retailer 2$2,867 AUD
Retailer 3$2,956 AUD
Retailer 12$2,956 AUD
Retailer 11$3,005 AUD
Retailer 10$3,093 AUD
Retailer 7$3,211 AUD
Retailer 4$3,411 AUD
Retailer 8$3,608 AUD
Retailer 6$4,015 AUD
Retailer 9$5,165 AUD
NZ Jewellers$6,181 AUD

34 data points across 13 retailers

13 retailers$2,417 AUD to $6,181 AUD

B+
Cheapest Retailer
-
$2,417 AUD
B+
Retailer 2
-
$2,671 AUD
View
B+
Retailer 3
-
$2,867 AUD
View
Retailer 4
-
$2,956 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$2,956 AUD
View
B+
Retailer 6
-
$3,005 AUD
View
B+
Retailer 7
-
$3,093 AUD
View
B+
Retailer 8
-
$3,211 AUD
View
B
Retailer 9
-
$3,411 AUD
View
B
Retailer 10
-
$3,608 AUD
View
B
Retailer 11
-
$4,015 AUD
View
B
Retailer 12
-
$5,165 AUD
View
Most Expensive
C
NZ Jewellers
51b3b725-14be-4cd1-8f8b-99b2073fe020 · Nov 5
$6,181 AUD
$4,247 USD
View
12 more retailers have this diamond
Prices start from $2,417 AUDSave up to $3,764 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
$2,417 AUD