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Marquise|Natural|GIA

2.51ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 17154894

Certificate GIA 17154894

Diamond specifications and retailer prices

From €24,043 EUR
$26,967 USD
As of November 2, 2026
Save €21,597 EUR (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €45,640 EUR at MOH London · As of November 1, 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 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 17154894. Listed at 10 retailers as of November 1, 2026, with prices from €24,043 to €45,640, a €21,597 spread on the same certified stone. MOH London lists it at €45,640. 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 17154894
Dimensions12.71 × 7.07 × 4.63 mm
L/W Ratio1.80
Top View
12.71 mm7.07 mm2.51 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 17154894
Side View
Table 57.0%CrownGirdle: Very ThickPavilionCuletDepth 65.5%

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 2
Current: €45,640 EUR|Low: €23,819 EUR|High: €46,190 EUR|Avg: €32,113 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6€24,043 EUR
Retailer 2€27,911 EUR
Retailer 5€29,178 EUR
Retailer 4€29,434 EUR
Retailer 3€35,449 EUR
MOH London€45,640 EUR

42 data points across 6 retailers

10 retailers€24,043 EUR to €45,640 EUR

B+
Cheapest Retailer
-
€24,043 EUR
$26,967 USD
B+
Retailer 2
-
€25,930 EUR
$29,083 USD
View
B+
Retailer 3
-
€26,525 EUR
A$45,769 AUD
View
Retailer 4
-
€27,911 EUR
$31,305 USD
View
Price last confirmed 12 days ago
Retailer 5
-
€27,911 EUR
$31,305 USD
View
Price last confirmed 26 days ago
B+
Retailer 6
-
€27,911 EUR
$31,305 USD
View
Retailer 7
-
€29,178 EUR
A$50,348 AUD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
€29,434 EUR
£25,994 GBP
View
B
Retailer 9
-
€35,449 EUR
View
Most Expensive
B
MOH London
12C425ADA · Nov 1
€45,640 EUR
£40,307 GBP
View
9 more retailers have this diamond
Prices start from €24,043 EURSave up to €21,597 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+
2.51ct Marquise
€24,043 EUR