Marquise|Natural|GIA

2.51ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 1553744455

Certificate GIA 1553744455

Diamond specifications and retailer prices

From €19,135 EUR
₹2,043,951 INR
As of November 2, 2026
Save €12,519 EUR (40%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €31,654 EUR at MOH London · As of October 26, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1553744455. Listed at 25 retailers as of October 26, 2026, with prices from €19,135 to €31,654, a €12,519 spread on the same certified stone. MOH London lists it at €31,654. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.16°
Pavilion angle39.4°
OriginNatural
Grading LabGIA
CertificateGIA 1553744455
Dimensions12.40 × 6.80 × 4.60 mm
L/W Ratio1.82
Culet sizeNone
Top View
12.40 mm6.80 mm2.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553744455
Side View
Table 58.0%Crown 43.16°Girdle: STK-VTKPavilion 39.4°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €31,654 EUR|Low: €16,280 EUR|High: €31,992 EUR|Avg: €21,229 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9€18,607 EUR
Retailer 8€18,908 EUR
Retailer 2€19,135 EUR
Retailer 7€19,397 EUR
Retailer 5€19,536 EUR
Retailer 3€20,442 EUR
Retailer 4€23,575 EUR
Retailer 6€24,356 EUR
MOH London€31,654 EUR

45 data points across 9 retailers

25 retailers€19,135 EUR to €31,654 EUR

B+
Retailer 1
-
€18,607 EUR
$20,870 USD
Price last confirmed 7 days ago
Retailer 2
-
€18,755 EUR
$21,036 USD
View
Price last confirmed 10 days ago
Retailer 3
-
€18,908 EUR
$21,207 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
€19,135 EUR
₹2,043,951 INR
View
B+
Retailer 5
-
€19,183 EUR
A$33,101 AUD
View
B+
Retailer 6
-
€19,536 EUR
$21,912 USD
View
Retailer 7
-
€20,241 EUR
$22,702 USD
View
Price last confirmed 26 days ago
B+
Retailer 8
-
€20,442 EUR
£18,054 GBP
View
Retailer 9
-
€20,526 EUR
$23,022 USD
View
Price last confirmed 8 days ago
Retailer 10
-
€21,253 EUR
$23,837 USD
View
Price last confirmed 33 days ago
Retailer 11
-
€21,631 EUR
$24,262 USD
View
Price last confirmed 9 days ago
Retailer 12
-
€21,737 EUR
$24,380 USD
View
Price last confirmed 8 days ago
Retailer 13
-
€21,737 EUR
$24,380 USD
View
Price last confirmed 7 days ago
Retailer 14
-
€21,928 EUR
$24,594 USD
View
Price last confirmed 26 days ago
Retailer 15
-
€21,928 EUR
$24,594 USD
View
Price last confirmed 39 days ago
B+
Retailer 16
-
€22,166 EUR
A$38,248 AUD
View
Retailer 17
-
€22,459 EUR
$25,190 USD
View
Price last confirmed 8 days ago
Retailer 18
-
€22,771 EUR
$25,540 USD
View
Price last confirmed 57 days ago
Retailer 19
-
€22,771 EUR
$25,540 USD
View
Price last confirmed 35 days ago
Retailer 20
-
€23,075 EUR
$25,881 USD
View
Price last confirmed 11 days ago
B
Retailer 21
-
€23,575 EUR
View
Retailer 22
-
€24,356 EUR
$27,317 USD
View
Price last confirmed 10 days ago
Retailer 23
-
€28,674 EUR
$32,161 USD
View
Price last confirmed 39 days ago
Retailer 24
-
€28,674 EUR
$32,161 USD
View
Price last confirmed 34 days ago
Most Expensive
B
MOH London
3DD4EB45D · Oct 26
€31,654 EUR
£27,955 GBP
View
24 more retailers have this diamond
Prices start from €19,135 EURSave up to €12,519 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
€19,135 EUR