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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 €11,897 EUR
$13,291 USD
As of October 31, 2026
Save €5,762 EUR (33%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €18,619 EUR 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 29, 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
Color
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: €24,960 EUR|Low: €11,332 EUR|High: €34,034 EUR|Avg: €18,160 EUR
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
October 31, 2026
Retailer 13€11,332 EUR
Retailer 14€11,432 EUR
Retailer 12€11,897 EUR
Retailer 2€12,415 EUR
Retailer 8€13,426 EUR
Retailer 7€13,588 EUR
Retailer 11€13,784 EUR
Retailer 10€15,468 EUR
Retailer 9€17,658 EUR
Retailer 3€19,448 EUR
Retailer 6€21,069 EUR
Retailer 5€21,879 EUR
NZ Jewellers€24,960 EUR
Retailer 4€34,034 EUR

31 data points across 14 retailers

12 retailers€11,897 EUR to €17,658 EUR

Retailer 1
-
€11,332 EUR
$12,660 USD
Price last confirmed 19 days ago
A
Retailer 2
-
€11,897 EUR
$13,291 USD
View
Final sale: no returns
A
Retailer 3
-
€12,415 EUR
$13,870 USD
View
Retailer 4
-
€12,958 EUR
$14,477 USD
View
Price last confirmed 32 days ago
Retailer 5
-
€13,095 EUR
$14,630 USD
View
Price last confirmed 25 days ago
Retailer 6
-
€13,358 EUR
$14,924 USD
View
Price last confirmed 39 days ago
A
Retailer 7
-
€13,426 EUR
£11,811 GBP
View
A
Retailer 8
-
€13,588 EUR
View
A
Retailer 9
-
€13,784 EUR
$15,399 USD
View
A
Retailer 10
-
€15,468 EUR
ZAR 279,175 ZAR
View
A
Retailer 11
-
€17,658 EUR
£15,534 GBP
View
Most Expensive
NZ Jewellers
9916dc0b-100a-4668-9c69-5e3a6eabf885 · Sep 20
€18,619 EUR
$20,801 USD
View
Price last confirmed 41 days ago
11 more retailers have this diamond
Prices start from €11,897 EURSave up to €5,762 EUR

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
€11,897 EUR