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2.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2544271085

Certificate GIA 2544271085

Diamond specifications and retailer prices

From HK$170,566 HKD
$21,740 USD
As of November 1, 2026
Save HK$137,373 HKD (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$307,939 HKD at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2544271085. Listed at 17 retailers as of November 1, 2026, with prices from HK$170,566 to HK$307,939, a HK$137,373 spread on the same certified stone. MOH London lists it at HK$307,939. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2544271085
Dimensions8.59 × 8.65 × 5.40 mm
L/W Ratio1.01
Top View
8.59 mm8.65 mm2.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2544271085
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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$307,939 HKD|Low: HK$129,564 HKD|High: HK$311,655 HKD|Avg: HK$214,285 HKD|-0.1%
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
November 2, 2026
Retailer 3HK$170,566 HKD
Retailer 6HK$179,047 HKD
Retailer 5HK$188,956 HKD
Retailer 13HK$197,178 HKD
Retailer 7HK$198,913 HKD
Retailer 4HK$201,862 HKD
Retailer 12HK$207,032 HKD
Retailer 10HK$213,607 HKD
Retailer 2HK$220,595 HKD
Retailer 11HK$221,821 HKD
Retailer 8HK$238,177 HKD
Retailer 9HK$272,649 HKD
Retailer 14HK$279,330 HKD
MOH LondonHK$307,939 HKD

32 data points across 14 retailers

17 retailersHK$170,566 HKD to HK$307,939 HKD

B+
Cheapest Retailer
-
HK$170,566 HKD
$21,740 USD
B+
Retailer 2
-
HK$179,047 HKD
$22,821 USD
View
B+
Retailer 3
-
HK$179,517 HKD
$22,881 USD
View
B+
Retailer 4
-
HK$188,956 HKD
$24,084 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$191,984 HKD
$24,470 USD
View
B
Retailer 6
-
HK$197,178 HKD
$25,132 USD
View
B+
Retailer 7
-
HK$198,913 HKD
£19,963 GBP
View
B
Retailer 8
-
HK$201,862 HKD
$25,729 USD
View
B
Retailer 9
-
HK$207,032 HKD
$26,388 USD
View
B
Retailer 10
-
HK$210,757 HKD
$26,863 USD
View
B
Retailer 11
-
HK$213,607 HKD
$27,226 USD
View
B+
Retailer 12
-
HK$220,595 HKD
£22,139 GBP
View
B
Retailer 13
-
HK$221,821 HKD
$28,273 USD
View
B
Retailer 14
-
HK$238,177 HKD
€28,912 EUR
View
B
Retailer 15
-
HK$272,649 HKD
ZAR 561,411 ZAR
View
B
Retailer 16
-
HK$279,330 HKD
$35,603 USD
View
Most Expensive
B
MOH London
374279A59 · Nov 1
HK$307,939 HKD
£30,905 GBP
View
16 more retailers have this diamond
Prices start from HK$170,566 HKDSave up to HK$137,373 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 Round
HK$170,566 HKD