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Round|Natural|IGI

2.51ct E SI2 Round Natural Diamond

EX • E/SI2 • IGI 819642331

Shape and cutting style on the report: Round brilliant

Certificate IGI 819642331

Diamond specifications and retailer prices

From $10,225 USD
As of October 27, 2026
Save $2,428 USD (19%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $12,653 USD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 819642331. Listed at 6 retailers as of October 26, 2026, with prices from $10,225 to $12,653, a $2,428 spread on the same certified stone. Wholesale Diamonds Direct lists it at $12,653. 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
E
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.2°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 819642331
Dimensions8.58 × 8.63 × 5.39 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
8.58 mm8.63 mm2.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 819642331
Side View
Table 55.0%Crown 36.2°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.6%

Caratlytics Score

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A
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: Oct 27
Current: $11,811 USD|Low: $8,140 USD|High: $13,975 USD|Avg: $11,383 USD|-6.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
October 28, 2026
Retailer 6$8,140 USD
Retailer 2$10,225 USD
Retailer 5$10,470 USD
Retailer 3$10,765 USD
Retailer 4$11,790 USD
Retailer 1$11,811 USD
Wholesale Diamonds Direct$12,653 USD

32 data points across 7 retailers

6 retailers$10,225 USD to $12,653 USD

A
Cheapest Retailer
-
$10,225 USD
A
Retailer 2
-
$10,470 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$10,765 USD
SGD 14,547 SGD
View
A
Retailer 4
-
$11,790 USD
View
A
Retailer 5
-
$11,811 USD
€11,249 EUR
View
Most Expensive
A
Wholesale Diamonds Direct
584618835 · Oct 26
$12,653 USD
View
5 more retailers have this diamond
Prices start from $10,225 USDSave up to $2,428 USD

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
$10,225 USD