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Round|Natural|IGI

2.50ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 773616555

Shape and cutting style on the report: Round brilliant

Certificate IGI 773616555

Diamond specifications and retailer prices

From $18,185 NZD
₹976,108 INR
As of November 1, 2026
Save $15,780 NZD (46%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $33,965 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 773616555. Listed at 17 retailers as of October 30, 2026, with prices from $18,185 to $33,965, a $15,780 spread on the same certified stone. NZ Jewellers lists it at $33,965. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 773616555
Dimensions8.66 × 8.59 × 5.33 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
8.66 mm8.59 mm2.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 773616555
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.7%

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: $33,965 NZD|Low: $17,394 NZD|High: $33,965 NZD|Avg: $23,614 NZD|+4.4%
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 1, 2026
Retailer 2$18,185 NZD
Retailer 6$20,404 NZD
Retailer 15$20,601 NZD
Retailer 3$20,869 NZD
Retailer 7$21,556 NZD
Retailer 13$22,495 NZD
Retailer 4$23,994 NZD
Retailer 11$24,368 NZD
Retailer 5$24,966 NZD
Retailer 8$24,998 NZD
Retailer 10$25,065 NZD
Retailer 12$25,307 NZD
Retailer 14$25,393 NZD
Retailer 9$31,826 NZD
NZ Jewellers$33,965 NZD

38 data points across 15 retailers

17 retailers$18,185 NZD to $33,965 NZD

A
Cheapest Retailer
-
$18,185 NZD
₹976,108 INR
A
Retailer 2
-
$20,404 NZD
$11,500 USD
View
A
Retailer 3
-
$20,601 NZD
$11,611 USD
View
A
Retailer 4
-
$20,869 NZD
$11,762 USD
View
A
Retailer 5
-
$21,556 NZD
$12,149 USD
View
Final sale: no returns
A
Retailer 6
-
$22,495 NZD
$12,678 USD
View
Retailer 7
-
$23,348 NZD
$13,159 USD
View
Price last confirmed 51 days ago
Retailer 8
-
$23,994 NZD
$13,523 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$24,246 NZD
$13,665 USD
View
Price last confirmed 33 days ago
A
Retailer 10
-
$24,368 NZD
$13,734 USD
View
B+
Retailer 11
-
$24,966 NZD
$14,071 USD
View
B+
Retailer 12
-
$24,998 NZD
€13,418 EUR
View
A
Retailer 13
-
$25,065 NZD
£11,123 GBP
View
A
Retailer 14
-
$25,307 NZD
$14,263 USD
View
A
Retailer 15
-
$25,393 NZD
$14,311 USD
View
B+
Retailer 16
-
$31,826 NZD
£14,124 GBP
View
Most Expensive
B+
NZ Jewellers
abdbfccd-b8f3-4b66-a56a-3eb346447a08 · Oct 30
$33,965 NZD
$19,143 USD
View
16 more retailers have this diamond
Prices start from $18,185 NZDSave up to $15,780 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
$18,185 NZD