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2.51ct D SI2 Round Natural Diamond

EX • D/SI2 • HRD 250000179146

Certificate HRD 250000179146

Diamond specifications and retailer prices

From €13,391 EUR
$14,960 USD
As of October 29, 2026
Save €7,296 EUR (35%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €20,687 EUR 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 250000179146. Listed at 6 retailers as of October 29, 2026, with prices from €13,391 to €20,687, a €7,296 spread on the same certified stone. MOH London lists it at €20,687. 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
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.4°
OriginNatural
Grading LabHRD
CertificateHRD 250000179146
Dimensions8.61 × 8.67 × 5.37 mm
L/W Ratio1.01
Girdle conditionMedium
Top View
8.61 mm8.67 mm2.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 250000179146
Side View
Table 60.0%Crown 35.1°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
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 29
Current: €20,687 EUR|Low: €13,391 EUR|High: €21,696 EUR|Avg: €17,098 EUR|-3.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 2€13,391 EUR
Retailer 6€15,268 EUR
Retailer 3€16,414 EUR
Retailer 5€16,730 EUR
Retailer 7€16,850 EUR
Retailer 4€19,446 EUR
MOH London€20,687 EUR

14 data points across 7 retailers

6 retailers€13,391 EUR to €20,687 EUR

A
Cheapest Retailer
-
€13,391 EUR
$14,960 USD
Retailer 2
-
€15,959 EUR
$17,830 USD
View
Price last confirmed 32 days ago
Retailer 3
-
€16,208 EUR
$18,108 USD
View
Price last confirmed 24 days ago
Retailer 4
-
€16,414 EUR
$18,338 USD
View
Price last confirmed 39 days ago
Retailer 5
-
€19,446 EUR
$21,725 USD
View
Price last confirmed 42 days ago
Most Expensive
A
MOH London
4B8DD42EE · Oct 29
€20,687 EUR
£18,198 GBP
View
5 more retailers have this diamond
Prices start from €13,391 EURSave up to €7,296 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
€13,391 EUR