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Marquise|Natural|GIA

2.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 5232973123

Certificate GIA 5232973123

Diamond specifications and retailer prices

From €19,179 EUR
HK$167,400 HKD
As of October 30, 2026
Save €16,426 EUR (46%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €35,606 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 2.5ct natural marquise diamond

This 2.5ct natural marquise sits in the two to three carat band, graded I 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 5232973123. Listed at 10 retailers as of October 29, 2026, with prices from €19,179 to €35,606, a €16,426 spread on the same certified stone. MOH London lists it at €35,606. 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

2.50
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5232973123
Dimensions13.68 × 7.36 × 4.45 mm
L/W Ratio1.86
Culet sizeNone
Key to symbols
Feather
Top View
13.68 mm7.36 mm2.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5232973123
Side View
Table 59.0%CrownGirdlePavilionCulet: NoneDepth 60.4%

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: €35,606 EUR|Low: €19,179 EUR|High: €36,966 EUR|Avg: €25,477 EUR|-3.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 7€19,179 EUR
Retailer 4€21,037 EUR
Retailer 10€21,371 EUR
Retailer 2€22,076 EUR
Retailer 8€23,622 EUR
Retailer 5€26,170 EUR
Retailer 6€26,283 EUR
Retailer 9€27,118 EUR
Retailer 3€27,141 EUR
MOH London€35,606 EUR

37 data points across 10 retailers

10 retailers€19,179 EUR to €35,606 EUR

A
Cheapest Retailer
-
€19,179 EUR
HK$167,400 HKD
B+
Retailer 2
-
€21,037 EUR
View
Retailer 3
-
€21,371 EUR
SGD 32,265 SGD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
€22,076 EUR
$24,663 USD
View
B+
Retailer 5
-
€23,622 EUR
$26,391 USD
View
B
Retailer 6
-
€26,170 EUR
£23,022 GBP
View
B
Retailer 7
-
€26,283 EUR
$29,363 USD
View
B
Retailer 8
-
€27,118 EUR
$30,296 USD
View
B
Retailer 9
-
€27,141 EUR
View
Most Expensive
B
MOH London
65B18CEAC · Oct 29
€35,606 EUR
£31,322 GBP
View
9 more retailers have this diamond
Prices start from €19,179 EURSave up to €16,426 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
2.50ct Marquise
€19,179 EUR