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Marquise|Natural|GIA

2.51ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 5242029817

Certificate GIA 5242029817

Diamond specifications and retailer prices

From €24,903 EUR
SGD 37,745 SGD
As of October 30, 2026
Save €21,595 EUR (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €46,498 EUR at With Clarity · As of October 30, 2026
View at With Clarity

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 5242029817. Listed at 14 retailers as of October 30, 2026, with prices from €24,903 to €46,498, a €21,595 spread on the same certified stone. With Clarity lists it at €46,498. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
D
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.72°
Pavilion angle39.61°
OriginNatural
Grading LabGIA
CertificateGIA 5242029817
Dimensions12.82 × 6.92 × 4.52 mm
L/W Ratio1.85
Culet sizeNone
Top View
12.82 mm6.92 mm2.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242029817
Side View
Table 59.0%Crown 39.72°Girdle: THN-VTKPavilion 39.61°Culet: NDepth 65.3%

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 30
Current: €38,243 EUR|Low: €24,903 EUR|High: €48,411 EUR|Avg: €32,377 EUR|-7.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
With Clarity
October 31, 2026
Retailer 10€24,903 EUR
Retailer 7€26,690 EUR
Retailer 9€27,182 EUR
Retailer 11€27,182 EUR
Retailer 6€27,482 EUR
Retailer 13€27,947 EUR
Retailer 12€28,085 EUR
Retailer 2€30,237 EUR
Retailer 8€31,907 EUR
Retailer 3€31,945 EUR
Retailer 5€32,672 EUR
Retailer 1€38,243 EUR
Retailer 4€40,135 EUR
With Clarity€46,498 EUR

27 data points across 14 retailers

14 retailers€24,903 EUR to €46,498 EUR

A
Cheapest Retailer
-
€24,903 EUR
SGD 37,745 SGD
A
Retailer 2
-
€26,690 EUR
£23,572 GBP
View
A
Retailer 3
-
€27,182 EUR
$30,487 USD
View
A
Retailer 4
-
€27,182 EUR
$30,488 USD
View
A
Retailer 5
-
€27,482 EUR
$30,824 USD
View
A
Retailer 6
-
€27,947 EUR
$31,345 USD
View
A
Retailer 7
-
€28,085 EUR
SGD 42,568 SGD
View
B+
Retailer 8
-
€30,237 EUR
$33,914 USD
View
B+
Retailer 9
-
€31,907 EUR
View
B+
Retailer 10
-
€31,945 EUR
$35,829 USD
View
B+
Retailer 11
-
€32,672 EUR
$36,645 USD
View
B
Retailer 12
-
€38,243 EUR
$42,893 USD
View
B+
Retailer 13
-
€40,135 EUR
$45,016 USD
View
Most Expensive
B
With Clarity
5242029817 · Oct 30
€46,498 EUR
$52,152 USD
View
13 more retailers have this diamond
Prices start from €24,903 EURSave up to €21,595 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
€24,903 EUR