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Marquise|Natural|GIA

2.51ct D SI2 Marquise Natural Diamond

EX • D/SI2

Diamond specifications and retailer prices

From €27,605 EUR
$30,841 USD
As of October 31, 2026
Save €9,972 EUR (27%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €37,578 EUR at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 6 retailers as of October 31, 2026, with prices from €27,605 to €37,578, a €9,972 spread on the same certified stone. The Diamond Guys lists it at €37,578. 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
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
Dimensions12.90 × 7.02 × 4.46 mm
L/W Ratio1.84
Top View
12.90 mm7.02 mm2.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA
Side View
Table 57.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 63.6%

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: Oct 31
Current: €35,306 EUR|Low: €27,348 EUR|High: €37,578 EUR|Avg: €33,334 EUR|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
The Diamond Guys
November 1, 2026
Retailer 3€27,605 EUR
Retailer 5€30,302 EUR
Retailer 2€31,506 EUR
Retailer 6€34,985 EUR
Retailer 1€35,306 EUR
Retailer 4€35,499 EUR
The Diamond Guys€37,578 EUR

41 data points across 7 retailers

6 retailers€27,605 EUR to €37,578 EUR

A
Cheapest Retailer
-
€27,605 EUR
$30,841 USD
B+
Retailer 2
-
€30,302 EUR
CA$47,019 CAD
View
B+
Retailer 3
-
€31,506 EUR
$35,199 USD
View
B
Retailer 4
-
€34,985 EUR
$39,086 USD
View
B
Retailer 5
-
€35,306 EUR
£31,058 GBP
View
Most Expensive
B
The Diamond Guys
1965159174 · Nov 2
€37,578 EUR
$41,982 USD
View
5 more retailers have this diamond
Prices start from €27,605 EURSave up to €9,972 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.

A
2.51ct Marquise
€27,605 EUR