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2.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6535368098

Certificate GIA 6535368098

Diamond specifications and retailer prices

From HK$174,802 HKD
$22,280 USD
As of November 1, 2026
Save HK$137,929 HKD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$312,731 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 6535368098. Listed at 13 retailers as of November 1, 2026, with prices from HK$174,802 to HK$312,731, a HK$137,929 spread on the same certified stone. MOH London lists it at HK$312,731. 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6535368098
Dimensions8.63 × 8.59 × 5.44 mm
L/W Ratio1.00
Top View
8.63 mm8.59 mm2.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6535368098
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 63.1%

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$312,731 HKD|Low: HK$174,802 HKD|High: HK$316,498 HKD|Avg: HK$218,962 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 4HK$174,802 HKD
Retailer 5HK$191,890 HKD
Retailer 10HK$200,238 HKD
Retailer 3HK$202,338 HKD
Retailer 7HK$208,586 HKD
Retailer 6HK$210,249 HKD
Retailer 8HK$216,926 HKD
Retailer 9HK$225,266 HKD
Retailer 2HK$236,010 HKD
MOH LondonHK$312,731 HKD

39 data points across 10 retailers

13 retailersHK$174,802 HKD to HK$312,731 HKD

B+
Cheapest Retailer
-
HK$174,802 HKD
$22,280 USD
B+
Retailer 2
-
HK$184,123 HKD
$23,468 USD
View
B
Retailer 3
-
HK$191,890 HKD
$24,458 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$202,338 HKD
£20,307 GBP
View
B+
Retailer 5
-
HK$208,586 HKD
$26,586 USD
View
B
Retailer 6
-
HK$210,249 HKD
$26,798 USD
View
B
Retailer 7
-
HK$214,580 HKD
$27,350 USD
View
B
Retailer 8
-
HK$214,580 HKD
$27,350 USD
View
B
Retailer 9
-
HK$216,926 HKD
$27,649 USD
View
B
Retailer 10
-
HK$221,719 HKD
$28,260 USD
View
B
Retailer 11
-
HK$225,266 HKD
$28,712 USD
View
B
Retailer 12
-
HK$236,010 HKD
€28,649 EUR
View
Most Expensive
B
MOH London
2C311C6B1 · Nov 1
HK$312,731 HKD
£31,386 GBP
View
12 more retailers have this diamond
Prices start from HK$174,802 HKDSave up to HK$137,929 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$174,802 HKD