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Oval|Natural|GIA

1.00ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 2558152906

Certificate GIA 2558152906

Diamond specifications and retailer prices

From $1,939 NZD
As of November 6, 2026
Save $1,721 NZD (47%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,660 NZD at With Clarity · As of November 6, 2026
View at With Clarity

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558152906. Listed at 6 retailers as of November 6, 2026, with prices from $1,939 to $3,660, a $1,721 spread on the same certified stone. With Clarity lists it at $3,660. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558152906
Dimensions8.15 × 5.54 × 3.33 mm
L/W Ratio1.47
Top View
8.15 mm5.54 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558152906
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 60.2%

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: $2,410 NZD|Low: $1,939 NZD|High: $3,705 NZD|Avg: $2,625 NZD|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
With Clarity
November 6, 2026
Retailer 3$1,939 NZD
Retailer 5$2,195 NZD
Retailer 1$2,410 NZD
Retailer 6$2,509 NZD
Retailer 4$2,688 NZD
Retailer 2$2,796 NZD
With Clarity$3,660 NZD

13 data points across 7 retailers

6 retailers$1,939 NZD to $3,660 NZD

A
Cheapest Retailer
-
$1,939 NZD
A
Retailer 2
-
$2,195 NZD
View
A
Retailer 3
-
$2,410 NZD
View
A
Retailer 4
-
$2,688 NZD
View
B+
Retailer 5
-
$2,796 NZD
View
Most Expensive
B+
With Clarity
2558152906 · Nov 6
$3,660 NZD
$2,029 USD
View
5 more retailers have this diamond
Prices start from $1,939 NZDSave up to $1,721 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
1.00ct Oval
$1,939 NZD