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Round|Natural|IGI

2.51ct I VS1 Round Natural Diamond

EX • I/VS1 • IGI 809692459

Shape and cutting style on the report: Round brilliant

Certificate IGI 809692459

Diamond specifications and retailer prices

From $23,622 NZD
$13,291 USD
As of October 31, 2026
Save $11,253 NZD (32%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $36,970 NZD at NZ Jewellers · As of September 20, 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 809692459. Listed at 12 retailers as of October 31, 2026, with a 48% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.51
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.1°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 809692459
Dimensions8.64 × 8.69 × 5.41 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
8.64 mm8.69 mm2.51 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 809692459
Side View
Table 58.0%Crown 36.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

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: Oct 31
Current: $49,562 NZD|Low: $22,501 NZD|High: $67,578 NZD|Avg: $35,996 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$22,501 NZD
Retailer 14$22,700 NZD
Retailer 12$23,622 NZD
Retailer 9$24,651 NZD
Retailer 7$26,580 NZD
Retailer 10$26,981 NZD
Retailer 11$27,369 NZD
Retailer 8$30,878 NZD
Retailer 2$34,876 NZD
Retailer 3$38,615 NZD
Retailer 6$41,834 NZD
Retailer 5$43,443 NZD
NZ Jewellers$49,562 NZD
Retailer 4$67,578 NZD

32 data points across 14 retailers

12 retailers$23,622 NZD to $34,876 NZD

Retailer 1
-
$22,501 NZD
$12,660 USD
Price last confirmed 21 days ago
A
Retailer 2
-
$23,622 NZD
$13,291 USD
View
Final sale: no returns
A
Retailer 3
-
$24,651 NZD
$13,870 USD
View
Retailer 4
-
$25,730 NZD
$14,477 USD
View
Price last confirmed 34 days ago
Retailer 5
-
$26,002 NZD
$14,630 USD
View
Price last confirmed 26 days ago
Retailer 6
-
$26,524 NZD
$14,924 USD
View
Price last confirmed 41 days ago
A
Retailer 7
-
$26,580 NZD
£11,776 GBP
View
A
Retailer 8
-
$26,981 NZD
€14,458 EUR
View
A
Retailer 9
-
$27,369 NZD
$15,399 USD
View
A
Retailer 10
-
$30,878 NZD
ZAR 280,667 ZAR
View
A
Retailer 11
-
$34,876 NZD
£15,451 GBP
View
Most Expensive
NZ Jewellers
9916dc0b-100a-4668-9c69-5e3a6eabf885 · Sep 20
$36,970 NZD
$20,801 USD
View
Price last confirmed 43 days ago
11 more retailers have this diamond
Prices start from $23,622 NZDSave up to $11,253 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
$23,622 NZD