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2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 782657587

Shape and cutting style on the report: Round brilliant

Certificate IGI 782657587

Diamond specifications and retailer prices

From $17,652 NZD
₹945,910 INR
As of November 1, 2026
Save $16,008 NZD (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $33,660 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 782657587. Listed at 10 retailers as of October 30, 2026, with prices from $17,652 to $33,660, a $16,008 spread on the same certified stone. NZ Jewellers lists it at $33,660. 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

2.51
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 782657587
Dimensions8.60 × 8.71 × 5.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
8.60 mm8.71 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 782657587
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

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: $33,660 NZD|Low: $17,651 NZD|High: $33,660 NZD|Avg: $25,610 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2$17,652 NZD
Retailer 6$21,363 NZD
Retailer 4$23,238 NZD
Retailer 7$23,778 NZD
Retailer 5$24,363 NZD
Retailer 3$31,542 NZD
NZ Jewellers$33,660 NZD

43 data points across 7 retailers

10 retailers$17,652 NZD to $33,660 NZD

A
Cheapest Retailer
-
$17,652 NZD
₹945,910 INR
A
Retailer 2
-
$21,363 NZD
$12,020 USD
View
Final sale: no returns
A
Retailer 3
-
$23,238 NZD
£10,295 GBP
View
A
Retailer 4
-
$23,778 NZD
$13,379 USD
View
A
Retailer 5
-
$24,152 NZD
$13,589 USD
View
A
Retailer 6
-
$24,363 NZD
€13,055 EUR
View
A
Retailer 7
-
$24,741 NZD
$13,921 USD
View
A
Retailer 8
-
$25,079 NZD
$14,111 USD
View
B+
Retailer 9
-
$31,542 NZD
£13,974 GBP
View
Most Expensive
B+
NZ Jewellers
d855b935-a21d-4933-aa46-cf53e3c11b8f · Oct 30
$33,660 NZD
$18,939 USD
View
9 more retailers have this diamond
Prices start from $17,652 NZDSave up to $16,008 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
2.51ct Round
$17,652 NZD