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Round|Natural|IGI

2.59ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 623473359

Shape and cutting style on the report: Round brilliant

Certificate IGI 623473359

Diamond specifications and retailer prices

From $15,281 NZD
As of November 1, 2026
Save $10,118 NZD (40%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $25,399 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.59ct natural round diamond

This 2.59ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 623473359. Listed at 16 retailers as of November 1, 2026, with prices from $15,281 to $25,399, a $10,118 spread on the same certified stone. NZ Jewellers lists it at $25,399. 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

2.59
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 623473359
Dimensions8.77 × 8.73 × 5.44 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
8.77 mm8.73 mm2.59 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 623473359
Side View
Table 58.0%Crown 35.8°Girdle: MediumPavilion 41°Culet: NoneDepth 62.2%

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 1
Current: $25,399 NZD|Low: $15,172 NZD|High: $29,909 NZD|Avg: $19,068 NZD|-4.0%
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
Retailer 14
Retailer 15
November 6, 2026
Retailer 7$15,281 NZD
Retailer 5$15,316 NZD
Retailer 14$15,749 NZD
Retailer 6$16,506 NZD
Retailer 8$16,610 NZD
Retailer 13$16,668 NZD
Retailer 2$17,439 NZD
Retailer 15$18,223 NZD
Retailer 3$18,504 NZD
Retailer 12$18,639 NZD
Retailer 10$19,077 NZD
Retailer 9$20,925 NZD
Retailer 4$21,027 NZD
Retailer 11$23,736 NZD
NZ Jewellers$25,399 NZD

21 data points across 15 retailers

16 retailers$15,281 NZD to $25,399 NZD

A
Cheapest Retailer
-
$15,281 NZD
A
Retailer 2
-
$15,316 NZD
View
A
Retailer 3
-
$15,749 NZD
View
Retailer 4
-
$16,506 NZD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$16,610 NZD
View
A
Retailer 6
-
$16,668 NZD
View
A
Retailer 7
-
$17,439 NZD
View
Retailer 8
-
$17,887 NZD
View
Price last confirmed 11 days ago
A
Retailer 9
-
$18,223 NZD
View
A
Retailer 10
-
$18,504 NZD
View
A
Retailer 11
-
$18,639 NZD
View
A
Retailer 12
-
$19,077 NZD
View
A
Retailer 13
-
$20,925 NZD
View
A
Retailer 14
-
$21,027 NZD
View
B+
Retailer 15
-
$23,736 NZD
View
Most Expensive
B+
NZ Jewellers
d94aae01-ede9-4fba-945c-ab6c06e8b425 · Nov 5
$25,399 NZD
$14,278 USD
View
15 more retailers have this diamond
Prices start from $15,281 NZDSave up to $10,118 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
2.59ct Round
$15,281 NZD