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Marquise|Natural|GIA

2.51ct D SI2 Marquise Natural Diamond

GD • D/SI2 • GIA 1555957217

Certificate GIA 1555957217

Diamond specifications and retailer prices

From HK$251,816 HKD
$32,096 USD
As of November 1, 2026
Save HK$180,155 HKD (42%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$431,971 HKD at MOH London · As of November 1, 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1555957217. Listed at 19 retailers as of November 1, 2026, with prices from HK$251,816 to HK$431,971, a HK$180,155 spread on the same certified stone. MOH London lists it at HK$431,971. 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
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555957217
Dimensions15.46 × 6.77 × 4.23 mm
L/W Ratio2.28
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Etch Channel, Indented Natural
Top View
15.46 mm6.77 mm2.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555957217
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: HK$431,971 HKD|Low: HK$223,116 HKD|High: HK$437,172 HKD|Avg: HK$292,083 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10HK$251,816 HKD
Retailer 9HK$253,534 HKD
Retailer 4HK$262,220 HKD
Retailer 7HK$267,739 HKD
Retailer 3HK$276,334 HKD
Retailer 6HK$276,592 HKD
Retailer 8HK$280,628 HKD
Retailer 2HK$309,462 HKD
Retailer 5HK$324,362 HKD
MOH LondonHK$431,971 HKD

44 data points across 10 retailers

19 retailersHK$251,816 HKD to HK$431,971 HKD

B+
Cheapest Retailer
-
HK$251,816 HKD
$32,096 USD
B+
Retailer 2
-
HK$253,534 HKD
$32,315 USD
View
Final sale: no returns
B+
Retailer 3
-
HK$257,032 HKD
$32,761 USD
View
Retailer 4
-
HK$258,076 HKD
$32,894 USD
View
Price last confirmed 10 days ago
B+
Retailer 5
-
HK$259,010 HKD
$33,013 USD
View
B+
Retailer 6
-
HK$262,220 HKD
₹3,183,059 INR
View
B+
Retailer 7
-
HK$267,739 HKD
$34,126 USD
View
B+
Retailer 8
-
HK$276,334 HKD
£27,733 GBP
View
B+
Retailer 9
-
HK$276,592 HKD
$35,254 USD
View
Retailer 10
-
HK$276,592 HKD
$35,254 USD
View
Price last confirmed 21 days ago
B+
Retailer 11
-
HK$280,628 HKD
$35,768 USD
View
Retailer 12
-
HK$288,110 HKD
$36,722 USD
View
Price last confirmed 33 days ago
Retailer 13
-
HK$290,416 HKD
$37,016 USD
View
Price last confirmed 32 days ago
B
Retailer 14
-
HK$295,759 HKD
$37,697 USD
View
Retailer 15
-
HK$299,635 HKD
$38,191 USD
View
Price last confirmed 25 days ago
B
Retailer 16
-
HK$309,462 HKD
£31,058 GBP
View
Retailer 17
-
HK$311,160 HKD
$39,660 USD
View
Price last confirmed 23 days ago
B
Retailer 18
-
HK$324,362 HKD
€39,374 EUR
View
Most Expensive
B
MOH London
585ECAC27 · Nov 1
HK$431,971 HKD
£43,353 GBP
View
18 more retailers have this diamond
Prices start from HK$251,816 HKDSave up to HK$180,155 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.

B+
2.51ct Marquise
HK$251,816 HKD