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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 €25,299 EUR
$28,375 USD
As of November 1, 2026
Save €19,972 EUR (44%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €45,271 EUR at MOH London · As of November 1, 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 €25,299 to €45,271, a €19,972 spread on the same certified stone. MOH London lists it at €45,271. 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
Color
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: €45,271 EUR|Low: €25,183 EUR|High: €45,271 EUR|Avg: €30,355 EUR|+3.0%
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 2, 2026
Retailer 8€25,492 EUR
Retailer 15€26,236 EUR
Retailer 3€26,391 EUR
Retailer 7€27,810 EUR
Retailer 6€28,042 EUR
Retailer 13€28,156 EUR
Retailer 10€29,194 EUR
Retailer 5€29,201 EUR
Retailer 16€30,194 EUR
Retailer 2€31,050 EUR
Retailer 4€31,353 EUR
Retailer 11€31,402 EUR
Retailer 14€32,610 EUR
Retailer 9€33,985 EUR
Retailer 12€40,082 EUR
MOH London€45,271 EUR

17 data points across 16 retailers

16 retailers€25,299 EUR to €45,271 EUR

B+
Cheapest Retailer
-
€25,299 EUR
$28,375 USD
B+
Retailer 2
-
€26,236 EUR
$29,426 USD
View
B+
Retailer 3
-
€26,391 EUR
$29,600 USD
View
Retailer 4
-
€27,810 EUR
$31,192 USD
View
Price last confirmed 17 days ago
Retailer 5
-
€28,042 EUR
$31,452 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
€28,156 EUR
$31,580 USD
View
B+
Retailer 7
-
€29,194 EUR
£25,783 GBP
View
Retailer 8
-
€29,201 EUR
$32,752 USD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
€30,194 EUR
$33,866 USD
View
B
Retailer 10
-
€31,050 EUR
£27,422 GBP
View
B
Retailer 11
-
€31,353 EUR
$35,165 USD
View
B
Retailer 12
-
€31,402 EUR
$35,221 USD
View
B+
Retailer 13
-
€32,610 EUR
$36,576 USD
View
B+
Retailer 14
-
€33,985 EUR
View
B
Retailer 15
-
€40,082 EUR
ZAR 726,278 ZAR
View
Most Expensive
B
MOH London
DD5D6BCC9 · Nov 1
€45,271 EUR
£39,981 GBP
View
15 more retailers have this diamond
Prices start from €25,299 EURSave up to €19,972 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
€25,299 EUR