CaratHunter
Plans
Round|Natural|IGI

2.51ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 573303601

Shape and cutting style on the report: Round brilliant

Certificate IGI 573303601

Diamond specifications and retailer prices

From $12,105 NZD
As of November 4, 2026
Save $11,319 NZD (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $23,425 NZD at NZ Jewellers · As of November 5, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 573303601. Listed at 12 retailers as of November 4, 2026, with prices from $12,105 to $23,425, a $11,319 spread on the same certified stone. NZ Jewellers lists it at $23,425. 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
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 573303601
Dimensions8.70 × 8.74 × 5.42 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
8.70 mm8.74 mm2.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 573303601
Side View
Table 57.0%Crown 35.1°Girdle: THN-MEDPavilion 41.4°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 4
Current: $23,425 NZD|Low: $12,066 NZD|High: $25,364 NZD|Avg: $15,435 NZD|-7.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12$12,105 NZD
Retailer 8$12,182 NZD
Retailer 3$12,915 NZD
Retailer 9$12,929 NZD
Retailer 2$13,402 NZD
Retailer 11$14,005 NZD
Retailer 10$14,221 NZD
Retailer 4$14,297 NZD
Retailer 6$15,252 NZD
Retailer 5$16,081 NZD
Retailer 7$16,160 NZD
NZ Jewellers$23,425 NZD

34 data points across 12 retailers

12 retailers$12,105 NZD to $23,425 NZD

A
Cheapest Retailer
-
$12,105 NZD
A
Retailer 2
-
$12,182 NZD
View
A
Retailer 3
-
$12,915 NZD
View
Retailer 4
-
$12,929 NZD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$13,402 NZD
View
A
Retailer 6
-
$14,005 NZD
View
A
Retailer 7
-
$14,221 NZD
View
A
Retailer 8
-
$14,297 NZD
View
B+
Retailer 9
-
$15,252 NZD
View
B+
Retailer 10
-
$16,081 NZD
View
B+
Retailer 11
-
$16,160 NZD
View
Most Expensive
B
NZ Jewellers
73a18abf-e15a-41e8-be7c-880a184cc0f2 · Nov 5
$23,425 NZD
$13,168 USD
View
11 more retailers have this diamond
Prices start from $12,105 NZDSave up to $11,319 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
$12,105 NZD