Round|Natural|IGI

2.51ct I VS1 Round Natural Diamond

EX • I/VS1 • IGI 825618149

Shape and cutting style on the report: Round brilliant

Certificate IGI 825618149

Diamond specifications and retailer prices

From $23,358 NZD

₹1,253,774 INR

As of November 1, 2026

Save $18,543 NZD (44%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $41,901 NZD at MOH London · As of October 29, 2026

View at MOH London

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 825618149. Listed at 14 retailers as of October 29, 2026, with prices from $23,358 to $41,901, a $18,543 spread on the same certified stone. MOH London lists it at $41,901. 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

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.6°

Pavilion angle41.3°

OriginNatural

Grading LabIGI

CertificateIGI 825618149

Dimensions8.67 × 8.62 × 5.48 mm

L/W Ratio1.01

Girdle conditionFaceted

View IGI Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI 825618149

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1

Current: $41,901 NZD|Low: $23,357 NZD|High: $41,901 NZD|Avg: $29,921 NZD|+8.5%

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

November 1, 2026

Retailer 2$23,358 NZD

Retailer 10$24,592 NZD

Retailer 8$27,081 NZD

Retailer 7$28,229 NZD

Retailer 4$28,318 NZD

Retailer 6$28,841 NZD

Retailer 3$30,988 NZD

Retailer 5$31,949 NZD

Retailer 9$36,705 NZD

MOH London$41,901 NZD

19 data points across 10 retailers

14 retailers$23,358 NZD to $41,901 NZD

Cheapest Retailer

$23,358 NZD

₹1,253,774 INR

Retailer 2

$24,592 NZD

$13,860 USD

View

Price last confirmed 24 days ago

Retailer 3

$27,081 NZD

$15,263 USD

View

Retailer 4

$28,229 NZD

$15,910 USD

View

Final sale: no returns

Retailer 5

$28,318 NZD

£12,567 GBP

View

Retailer 6

$28,664 NZD

$16,155 USD

View

Price last confirmed 33 days ago

Retailer 7

$28,680 NZD

$16,164 USD

View

Price last confirmed 26 days ago

Retailer 8

$28,841 NZD

$16,255 USD

View

Retailer 9

$29,517 NZD

$16,636 USD

View

Price last confirmed 41 days ago

Retailer 10

$30,988 NZD

€16,633 EUR

View

Retailer 11

$31,949 NZD

£14,178 GBP

View

Retailer 12

$34,970 NZD

$19,709 USD

View

Price last confirmed 35 days ago

Retailer 13

$36,705 NZD

ZAR 334,200 ZAR

View

Most Expensive

B+

MOH London

06E636470 · Oct 29

$41,901 NZD

£18,595 GBP

View

13 more retailers have this diamond

Prices start from $23,358 NZDSave up to $18,543 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.

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2.51ct Round

$23,358 NZD