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Marquise|Natural|HRD

2.51ct H SI2 Marquise Natural Diamond

GD • H/SI2 • HRD 260000001497

Certificate HRD 260000001497

Diamond specifications and retailer prices

From $18,167 USD
As of November 2, 2026
6 retailers carry this diamond
Most expensive: $20,073 USD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by HRD 260000001497. Listed at 6 retailers as of November 2, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
H
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.01°
Pavilion angle37.4°
OriginNatural
Grading LabHRD
CertificateHRD 260000001497
Dimensions13.32 × 7.49 × 4.11 mm
L/W Ratio1.78
Girdle conditionMedium
Top View
13.32 mm7.49 mm2.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000001497
Side View
Table 67.0%Crown 33.01°GirdlePavilion 37.4°Culet: NoneDepth 54.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $18,167 USD|Low: $13,305 USD|High: $29,978 USD|Avg: $20,623 USD|-3.4%
Retailer 1
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$13,305 USD
Retailer 1$18,167 USD
Retailer 2$29,978 USD

11 data points across 3 retailers

6 retailers

Retailer 1
-
$14,005 USD
Price last confirmed 36 days ago
Retailer 2
-
$14,224 USD
View
Price last confirmed 29 days ago
Retailer 3
-
$14,402 USD
View
Price last confirmed 45 days ago
B+
Retailer 4
-
$18,167 USD
View
Retailer 5
-
$19,825 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
54141ab4-0822-4182-8bdb-29a9d0675485 · Sep 28
$20,073 USD
View
Price last confirmed 39 days ago
5 more retailers have this diamond
Prices start from $18,167 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.

B+
2.51ct Marquise
$18,167 USD