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Marquise|Natural|GIA

2.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 3555720776

Certificate GIA 3555720776

Diamond specifications and retailer prices

From HK$175,456 HKD
CA$31,059 CAD
As of November 2, 2026
Save HK$112,934 HKD (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$288,390 HKD at MOH London · As of November 2, 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 3555720776. Listed at 9 retailers as of November 2, 2026, with prices from HK$175,456 to HK$288,390, a HK$112,934 spread on the same certified stone. MOH London lists it at HK$288,390. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555720776
Dimensions12.65 × 6.98 × 4.47 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity
Top View
12.65 mm6.98 mm2.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3555720776
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.0%

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: Nov 2
Current: HK$288,390 HKD|Low: HK$175,456 HKD|High: HK$291,858 HKD|Avg: HK$209,631 HKD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 4HK$175,456 HKD
Retailer 9HK$176,552 HKD
Retailer 3HK$189,533 HKD
Retailer 6HK$192,070 HKD
Retailer 7HK$202,576 HKD
Retailer 8HK$217,577 HKD
Retailer 2HK$217,788 HKD
Retailer 5HK$224,482 HKD
MOH LondonHK$288,390 HKD

26 data points across 9 retailers

9 retailersHK$175,456 HKD to HK$288,390 HKD

A
Cheapest Retailer
-
HK$175,456 HKD
CA$31,059 CAD
A
Retailer 2
-
HK$176,552 HKD
$22,502 USD
View
B+
Retailer 3
-
HK$189,533 HKD
£19,021 GBP
View
B+
Retailer 4
-
HK$192,070 HKD
$24,480 USD
View
B+
Retailer 5
-
HK$202,576 HKD
$25,819 USD
View
B
Retailer 6
-
HK$217,577 HKD
$27,731 USD
View
B+
Retailer 7
-
HK$217,788 HKD
€26,436 EUR
View
B
Retailer 8
-
HK$224,482 HKD
$28,611 USD
View
Most Expensive
B
MOH London
CB5FF2EBF · Nov 2
HK$288,390 HKD
£28,942 GBP
View
8 more retailers have this diamond
Prices start from HK$175,456 HKDSave up to HK$112,934 HKD

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
HK$175,456 HKD