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Marquise|Natural|GIA

2.50ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 2556337990

Certificate GIA 2556337990

Diamond specifications and retailer prices

From €12,757 EUR
As of November 6, 2026
Save €9,102 EUR (42%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €21,859 EUR at MOH London · As of November 2, 2026
View at MOH London

About this 2.5ct natural marquise diamond

This 2.5ct natural marquise sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556337990. Listed at 17 retailers as of November 2, 2026, with prices from €12,757 to €21,859, a €9,102 spread on the same certified stone. MOH London lists it at €21,859. 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

2.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.88°
Pavilion angle39.5°
OriginNatural
Grading LabGIA
CertificateGIA 2556337990
Dimensions13.11 × 6.94 × 4.48 mm
L/W Ratio1.89
Culet sizeNone
Top View
13.11 mm6.94 mm2.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556337990
Side View
Table 60.0%Crown 39.88°Girdle: MED-VTKPavilion 39.5°Culet: NoneDepth 64.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €21,859 EUR|Low: €12,757 EUR|High: €22,123 EUR|Avg: €16,015 EUR|-0.9%
MOH London
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
Retailer 15
Retailer 16
Retailer 17
November 3, 2026
Retailer 3€12,757 EUR
Retailer 17€12,867 EUR
Retailer 16€13,717 EUR
Retailer 5€13,996 EUR
Retailer 6€14,113 EUR
Retailer 2€14,603 EUR
Retailer 13€14,930 EUR
Retailer 9€14,948 EUR
Retailer 7€15,164 EUR
Retailer 8€15,747 EUR
Retailer 14€16,213 EUR
Retailer 10€16,325 EUR
Retailer 11€16,977 EUR
Retailer 15€17,414 EUR
Retailer 12€19,353 EUR
Retailer 4€19,829 EUR
MOH London€21,859 EUR

35 data points across 17 retailers

17 retailers€12,757 EUR to €21,859 EUR

B+
Cheapest Retailer
-
€12,757 EUR
B+
Retailer 2
-
€12,867 EUR
View
B+
Retailer 3
-
€13,717 EUR
View
Retailer 4
-
€13,996 EUR
View
Price last confirmed 8 days ago
Retailer 5
-
€14,113 EUR
View
Price last confirmed 7 days ago
B+
Retailer 6
-
€14,603 EUR
View
Retailer 7
-
€14,930 EUR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€14,948 EUR
View
B+
Retailer 9
-
€15,164 EUR
View
B+
Retailer 10
-
€15,747 EUR
View
B
Retailer 11
-
€16,213 EUR
View
B+
Retailer 12
-
€16,325 EUR
View
B+
Retailer 13
-
€16,977 EUR
View
B
Retailer 14
-
€17,414 EUR
View
B
Retailer 15
-
€19,353 EUR
View
Retailer 16
-
€19,829 EUR
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
753FA0915 · Nov 2
€21,859 EUR
£19,217 GBP
View
16 more retailers have this diamond
Prices start from €12,757 EURSave up to €9,102 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.

B+
2.50ct Marquise
€12,757 EUR