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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 $4,163 NZD
As of November 5, 2026
Save $6,214 NZD (60%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,378 NZD 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 $4,163 to $10,378, a $6,214 spread on the same certified stone. NZ Jewellers lists it at $10,378. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $10,378 NZD|Low: $4,116 NZD|High: $10,378 NZD|Avg: $5,719 NZD
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$4,163 NZD
Retailer 2$4,275 NZD
Retailer 4$4,445 NZD
Retailer 3$4,880 NZD
Retailer 10$4,964 NZD
Retailer 12$4,964 NZD
Retailer 11$5,154 NZD
Retailer 6$5,253 NZD
Retailer 5$5,466 NZD
Retailer 13$5,727 NZD
Retailer 7$6,057 NZD
Retailer 9$8,673 NZD
NZ Jewellers$10,378 NZD

45 data points across 13 retailers

17 retailers$4,163 NZD to $10,378 NZD

A
Cheapest Retailer
-
$4,163 NZD
A
Retailer 2
-
$4,275 NZD
View
B+
Retailer 3
-
$4,445 NZD
View
B+
Retailer 4
-
$4,880 NZD
View
Retailer 5
-
$4,964 NZD
View
Price last confirmed 39 days ago
B+
Retailer 6
-
$4,964 NZD
View
Retailer 7
-
$4,964 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$5,154 NZD
View
B+
Retailer 9
-
$5,219 NZD
View
B+
Retailer 10
-
$5,253 NZD
View
B
Retailer 11
-
$5,466 NZD
View
B
Retailer 12
-
$5,727 NZD
View
Retailer 13
-
$5,727 NZD
View
Price last confirmed 38 days ago
B
Retailer 14
-
$6,057 NZD
View
B
Retailer 15
-
$8,673 NZD
View
Retailer 16
-
$10,378 NZD
View
Price last confirmed 39 days ago
Most Expensive
C
NZ Jewellers
e6af802e-701c-4833-b52c-7e6757904c6e · Nov 5
$10,378 NZD
$5,753 USD
View
16 more retailers have this diamond
Prices start from $4,163 NZDSave up to $6,214 NZD

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
$4,163 NZD