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Oval|Natural|GIA

1.31ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 2554026545

Certificate GIA 2554026545

Diamond specifications and retailer prices

From $3,359 AUD
As of November 5, 2026
Save $5,014 AUD (60%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,373 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural oval diamond

This 1.31ct 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 2554026545. Listed at 17 retailers as of November 5, 2026, with prices from $3,359 to $8,373, a $5,014 spread on the same certified stone. NZ Jewellers lists it at $8,373. 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

1.31
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.5°
Pavilion angle37.1°
OriginNatural
Grading LabGIA
CertificateGIA 2554026545
Dimensions8.28 × 6.08 × 3.91 mm
L/W Ratio1.36
Top View
8.28 mm6.08 mm1.31 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554026545
Side View
Table 59.0%Crown 38.5°Girdle: THK-VTKPavilion 37.1°Culet: NoneDepth 64.3%

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 5
Current: $8,373 AUD|Low: $3,321 AUD|High: $8,373 AUD|Avg: $4,614 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 8$3,359 AUD
Retailer 2$3,449 AUD
Retailer 4$3,586 AUD
Retailer 3$3,937 AUD
Retailer 10$4,005 AUD
Retailer 12$4,005 AUD
Retailer 11$4,158 AUD
Retailer 6$4,238 AUD
Retailer 5$4,410 AUD
Retailer 13$4,621 AUD
Retailer 7$4,887 AUD
Retailer 9$6,998 AUD
NZ Jewellers$8,373 AUD

45 data points across 13 retailers

17 retailers$3,359 AUD to $8,373 AUD

A
Cheapest Retailer
-
$3,359 AUD
A
Retailer 2
-
$3,449 AUD
View
B+
Retailer 3
-
$3,586 AUD
View
B+
Retailer 4
-
$3,937 AUD
View
Retailer 5
-
$4,005 AUD
View
Price last confirmed 39 days ago
B+
Retailer 6
-
$4,005 AUD
View
Retailer 7
-
$4,005 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$4,158 AUD
View
B+
Retailer 9
-
$4,210 AUD
View
B+
Retailer 10
-
$4,238 AUD
View
B
Retailer 11
-
$4,410 AUD
View
B
Retailer 12
-
$4,621 AUD
View
Retailer 13
-
$4,621 AUD
View
Price last confirmed 38 days ago
B
Retailer 14
-
$4,887 AUD
View
B
Retailer 15
-
$6,998 AUD
View
Retailer 16
-
$8,373 AUD
View
Price last confirmed 39 days ago
Most Expensive
C
NZ Jewellers
e6af802e-701c-4833-b52c-7e6757904c6e · Nov 5
$8,373 AUD
$5,753 USD
View
16 more retailers have this diamond
Prices start from $3,359 AUDSave up to $5,014 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
1.31ct Oval
$3,359 AUD