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Marquise|Natural|GIA

2.51ct H SI2 Marquise Natural Diamond

ID • H/SI2 • GIA 6562556595

Certificate GIA 6562556595

Diamond specifications and retailer prices

From €16,340 EUR
As of November 5, 2026
Save €9,459 EUR (37%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €25,799 EUR at MOH London · As of November 2, 2026
View at MOH London

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562556595. Listed at 6 retailers as of November 2, 2026, with prices from €16,340 to €25,799, a €9,459 spread on the same certified stone. MOH London lists it at €25,799. 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
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle43.13°
Pavilion angle41.36°
OriginNatural
Grading LabGIA
CertificateGIA 6562556595
Dimensions12.60 × 7.00 × 4.70 mm
L/W Ratio1.80
Girdle conditionExtremely Thick
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Needle
Top View
12.60 mm7.00 mm2.51 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6562556595
Side View
Table 65.0%Crown 43.13°GirdlePavilion 41.36°CuletDepth 67.1%

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: Nov 5
Current: €25,799 EUR|Low: €16,340 EUR|High: €27,154 EUR|Avg: €21,003 EUR|-5.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 4€16,340 EUR
Retailer 2€19,006 EUR
Retailer 5€19,147 EUR
Retailer 6€19,754 EUR
Retailer 3€23,403 EUR
MOH London€25,799 EUR

22 data points across 6 retailers

6 retailers€16,340 EUR to €25,799 EUR

A
Cheapest Retailer
-
€16,340 EUR
A
Retailer 2
-
€19,006 EUR
View
A
Retailer 3
-
€19,147 EUR
View
B+
Retailer 4
-
€19,754 EUR
View
B+
Retailer 5
-
€23,403 EUR
View
Most Expensive
B
MOH London
720699669 · Nov 2
€25,799 EUR
£22,801 GBP
View
5 more retailers have this diamond
Prices start from €16,340 EURSave up to €9,459 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 Marquise
€16,340 EUR