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Marquise|Natural|GIA

2.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 1555451099

Certificate GIA 1555451099

Diamond specifications and retailer prices

From €25,281 EUR
As of November 1, 2026
Save €19,837 EUR (44%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €45,118 EUR at MOH London · As of November 4, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555451099. Listed at 16 retailers as of November 1, 2026, with prices from €25,281 to €45,118, a €19,837 spread on the same certified stone. MOH London lists it at €45,118. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 1555451099
Dimensions13.38 × 7.02 × 4.35 mm
L/W Ratio1.91
Culet sizeNone
Top View
13.38 mm7.02 mm2.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555451099
Side View
Table 61.0%Crown 39.7°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €45,118 EUR|Low: €25,165 EUR|High: €45,239 EUR|Avg: €30,487 EUR|+2.7%
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
November 6, 2026
Retailer 8€25,474 EUR
Retailer 3€26,217 EUR
Retailer 5€26,372 EUR
Retailer 7€27,791 EUR
Retailer 15€28,136 EUR
Retailer 12€28,886 EUR
Retailer 11€29,208 EUR
Retailer 4€30,173 EUR
Retailer 13€30,414 EUR
Retailer 2€30,862 EUR
Retailer 6€31,330 EUR
Retailer 14€31,380 EUR
Retailer 16€32,587 EUR
Retailer 9€33,807 EUR
Retailer 10€39,776 EUR
MOH London€45,118 EUR

21 data points across 16 retailers

16 retailers€25,281 EUR to €45,118 EUR

B+
Cheapest Retailer
-
€25,281 EUR
B+
Retailer 2
-
€26,217 EUR
View
B+
Retailer 3
-
€26,372 EUR
View
Retailer 4
-
€27,791 EUR
View
Price last confirmed 21 days ago
B+
Retailer 5
-
€28,136 EUR
View
B+
Retailer 6
-
€28,886 EUR
View
B+
Retailer 7
-
€29,208 EUR
View
B+
Retailer 8
-
€30,173 EUR
View
B
Retailer 9
-
€30,414 EUR
View
B
Retailer 10
-
€30,862 EUR
View
B
Retailer 11
-
€31,330 EUR
View
B
Retailer 12
-
€31,380 EUR
View
B+
Retailer 13
-
€32,587 EUR
View
B+
Retailer 14
-
€33,807 EUR
View
B
Retailer 15
-
€39,776 EUR
View
Most Expensive
B
MOH London
DD5D6BCC9 · Nov 4
€45,118 EUR
£39,874 GBP
View
15 more retailers have this diamond
Prices start from €25,281 EURSave up to €19,837 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
€25,281 EUR