Marquise|Natural|GIA

2.51ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2235963769

Certificate GIA 2235963769

Diamond specifications and retailer prices

From €29,305 EUR
$32,740 USD
As of October 26, 2026
1 retailer carries this diamond
Only listing: €29,305 EUR at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2235963769. Listed at a single retailer as of October 26, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.68°
Pavilion angle41.78°
OriginNatural
Grading LabGIA
CertificateGIA 2235963769
Dimensions13.29 × 7.06 × 4.56 mm
L/W Ratio1.88
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Cavity
Top View
13.29 mm7.06 mm2.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2235963769
Side View
Table 62.0%Crown 37.68°GirdlePavilion 41.78°CuletDepth 64.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 26
Current: €29,305 EUR|Low: €29,305 EUR|High: €44,912 EUR|Avg: €37,406 EUR|-1.9%
Brilliant Earth
Retailer 2
Retailer 3
October 20, 2026
Brilliant Earth€29,305 EUR
Retailer 3€37,768 EUR
Retailer 2€44,912 EUR

3 data points across 3 retailers

1 retailer

B+
Brilliant Earth
20237110A · Oct 26
€29,305 EUR
$32,740 USD
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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
€29,305 EUR