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Round|Natural|GIA

2.51ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6555357101

Certificate GIA 6555357101

Diamond specifications and retailer prices

From HK$160,498 HKD
$20,455 USD
As of October 29, 2026
Save HK$114,036 HKD (42%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$274,534 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555357101. Listed at 21 retailers as of October 29, 2026, with prices from HK$160,498 to HK$274,534, a HK$114,036 spread on the same certified stone. MOH London lists it at HK$274,534. 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

2.51
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555357101
Dimensions8.72 × 8.80 × 5.32 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle, Natural
Top View
8.72 mm8.80 mm2.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555357101
Side View
Table 61.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.7%

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 29
Current: HK$274,534 HKD|Low: HK$137,394 HKD|High: HK$274,534 HKD|Avg: HK$180,521 HKD|+10.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 9HK$137,394 HKD
Retailer 17HK$160,498 HKD
Retailer 6HK$160,734 HKD
Retailer 3HK$161,993 HKD
Retailer 11HK$167,488 HKD
Retailer 7HK$167,568 HKD
Retailer 14HK$168,738 HKD
Retailer 2HK$176,278 HKD
Retailer 4HK$178,814 HKD
Retailer 12HK$179,989 HKD
Retailer 13HK$186,859 HKD
Retailer 8HK$188,157 HKD
Retailer 15HK$188,157 HKD
Retailer 5HK$194,434 HKD
Retailer 16HK$210,365 HKD
Retailer 10HK$211,290 HKD
MOH LondonHK$274,534 HKD

30 data points across 17 retailers

21 retailersHK$160,498 HKD to HK$274,534 HKD

Retailer 1
-
HK$137,394 HKD
Price last confirmed 21 days ago
A
Retailer 2
-
HK$160,498 HKD
$20,455 USD
View
A
Retailer 3
-
HK$160,734 HKD
$20,485 USD
View
A
Retailer 4
-
HK$161,993 HKD
$20,645 USD
View
A
Retailer 5
-
HK$167,488 HKD
₹2,032,942 INR
View
A
Retailer 6
-
HK$167,568 HKD
$21,356 USD
View
Final sale: no returns
A
Retailer 7
-
HK$168,738 HKD
$21,505 USD
View
A
Retailer 8
-
HK$176,278 HKD
£17,690 GBP
View
A
Retailer 9
-
HK$178,814 HKD
$22,789 USD
View
A
Retailer 10
-
HK$179,989 HKD
$22,939 USD
View
Retailer 11
-
HK$184,916 HKD
$23,567 USD
View
Price last confirmed 30 days ago
A
Retailer 12
-
HK$186,859 HKD
$23,815 USD
View
A
Retailer 13
-
HK$188,157 HKD
$23,980 USD
View
A
Retailer 14
-
HK$188,157 HKD
$23,980 USD
View
Retailer 15
-
HK$190,785 HKD
$24,315 USD
View
Price last confirmed 28 days ago
A
Retailer 16
-
HK$194,434 HKD
$24,780 USD
View
Retailer 17
-
HK$198,122 HKD
$25,250 USD
View
Price last confirmed 31 days ago
B+
Retailer 18
-
HK$210,365 HKD
$26,810 USD
View
B+
Retailer 19
-
HK$211,290 HKD
€25,646 EUR
View
Retailer 20
-
HK$226,023 HKD
$28,806 USD
View
Price last confirmed 32 days ago
Most Expensive
B
MOH London
1C18CEA27 · Oct 29
HK$274,534 HKD
£27,550 GBP
View
20 more retailers have this diamond
Prices start from HK$160,498 HKDSave up to HK$114,036 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
2.51ct Round
HK$160,498 HKD