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Oval|Natural|GIA

1.30ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 2537658751

Certificate GIA 2537658751

Diamond specifications and retailer prices

From $3,924 AUD
As of November 6, 2026
Save $4,534 AUD (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,457 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural oval diamond

This 1.3ct natural oval sits in the one-and-a-quarter to one-and-a-half 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 2537658751. Listed at 8 retailers as of November 5, 2026, with prices from $3,924 to $8,457, a $4,534 spread on the same certified stone. NZ Jewellers lists it at $8,457. 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

1.30
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle38.1°
Pavilion angle35.2°
OriginNatural
Grading LabGIA
CertificateGIA 2537658751
Dimensions8.43 × 5.87 × 3.81 mm
L/W Ratio1.44
Top View
8.43 mm5.87 mm1.30 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2537658751
Side View
Table 57.0%Crown 38.1°Girdle: THK-VTKPavilion 35.2°Culet: NoneDepth 64.8%

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: $8,457 AUD|Low: $2,966 AUD|High: $8,457 AUD|Avg: $4,891 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$2,981 AUD
Retailer 2$3,924 AUD
Retailer 4$3,925 AUD
Retailer 7$4,200 AUD
Retailer 3$4,727 AUD
Retailer 5$4,937 AUD
Retailer 6$7,067 AUD
NZ Jewellers$8,457 AUD

18 data points across 8 retailers

8 retailers$3,924 AUD to $8,457 AUD

Retailer 1
-
$2,981 AUD
Price last confirmed 26 days ago
B+
Retailer 2
-
$3,924 AUD
View
B+
Retailer 3
-
$3,925 AUD
View
B
Retailer 4
-
$4,200 AUD
View
B
Retailer 5
-
$4,727 AUD
View
B
Retailer 6
-
$4,937 AUD
View
C
Retailer 7
-
$7,067 AUD
View
Most Expensive
C
NZ Jewellers
09b8abcb-5de2-4ef9-b5ca-de2a2fd3400d · Nov 5
$8,457 AUD
$5,811 USD
View
7 more retailers have this diamond
Prices start from $3,924 AUDSave up to $4,534 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+
1.30ct Oval
$3,924 AUD