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Round|Natural|IGI

2.50ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 766663499

Shape and cutting style on the report: Round brilliant

Certificate IGI 766663499

Diamond specifications and retailer prices

From $14,379 NZD
$8,104 USD
As of November 1, 2026
Save $13,447 NZD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $27,826 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 766663499. Listed at 14 retailers as of October 30, 2026, with prices from $14,379 to $27,826, a $13,447 spread on the same certified stone. NZ Jewellers lists it at $27,826. 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

2.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 766663499
Dimensions8.58 × 8.62 × 5.41 mm
L/W Ratio1.00
Girdle conditionPARTLY FACETED
Culet sizePointed
Top View
8.58 mm8.62 mm2.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 766663499
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.9%

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: $27,826 NZD|Low: $14,301 NZD|High: $27,826 NZD|Avg: $18,687 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
Retailer 14
November 1, 2026
Retailer 13$14,379 NZD
Retailer 4$14,503 NZD
Retailer 11$15,250 NZD
Retailer 12$15,357 NZD
Retailer 9$15,633 NZD
Retailer 8$16,008 NZD
Retailer 5$16,638 NZD
Retailer 14$16,893 NZD
Retailer 6$17,007 NZD
Retailer 2$18,099 NZD
Retailer 3$19,196 NZD
Retailer 10$19,237 NZD
Retailer 7$23,187 NZD
NZ Jewellers$27,826 NZD

13 data points across 14 retailers

14 retailers$14,379 NZD to $27,826 NZD

A
Cheapest Retailer
-
$14,379 NZD
$8,104 USD
A
Retailer 2
-
$14,503 NZD
$8,174 USD
View
A
Retailer 3
-
$15,250 NZD
$8,595 USD
View
Retailer 4
-
$15,357 NZD
$8,655 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$15,633 NZD
£6,938 GBP
View
A
Retailer 6
-
$16,008 NZD
£7,104 GBP
View
A
Retailer 7
-
$16,638 NZD
$9,377 USD
View
Retailer 8
-
$16,893 NZD
$9,521 USD
View
Price last confirmed 33 days ago
A
Retailer 9
-
$17,007 NZD
$9,585 USD
View
A
Retailer 10
-
$18,099 NZD
€9,715 EUR
View
B+
Retailer 11
-
$19,196 NZD
$10,819 USD
View
B+
Retailer 12
-
$19,237 NZD
ZAR 175,153 ZAR
View
B+
Retailer 13
-
$23,187 NZD
£10,290 GBP
View
Most Expensive
B
NZ Jewellers
291df81a-f0f8-4dfb-ac9b-ef7703c7734a · Oct 30
$27,826 NZD
$15,683 USD
View
13 more retailers have this diamond
Prices start from $14,379 NZDSave up to $13,447 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
2.50ct Round
$14,379 NZD