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Round|Natural|GIA

2.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2231668058

Certificate GIA 2231668058

Diamond specifications and retailer prices

From HK$193,427 HKD
CA$34,240 CAD
As of October 30, 2026
Save HK$124,272 HKD (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$317,700 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2231668058. Listed at 12 retailers as of October 30, 2026, with prices from HK$193,427 to HK$317,700, a HK$124,272 spread on the same certified stone. MOH London lists it at HK$317,700. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2231668058
Dimensions8.62 × 8.71 × 5.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
8.62 mm8.71 mm2.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231668058
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.9%

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 30
Current: HK$317,700 HKD|Low: HK$193,427 HKD|High: HK$330,046 HKD|Avg: HK$233,504 HKD|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6HK$193,427 HKD
Retailer 3HK$194,640 HKD
Retailer 7HK$206,784 HKD
Retailer 2HK$207,293 HKD
Retailer 4HK$211,005 HKD
Retailer 12HK$211,900 HKD
Retailer 8HK$223,324 HKD
Retailer 5HK$239,795 HKD
Retailer 9HK$239,871 HKD
Retailer 11HK$242,020 HKD
Retailer 10HK$243,072 HKD
MOH LondonHK$317,700 HKD

28 data points across 12 retailers

12 retailersHK$193,427 HKD to HK$317,700 HKD

A
Cheapest Retailer
-
HK$193,427 HKD
CA$34,240 CAD
B+
Retailer 2
-
HK$194,640 HKD
$24,807 USD
View
B+
Retailer 3
-
HK$206,784 HKD
$26,355 USD
View
B+
Retailer 4
-
HK$207,293 HKD
£20,803 GBP
View
B+
Retailer 5
-
HK$211,005 HKD
$26,893 USD
View
B+
Retailer 6
-
HK$211,900 HKD
$27,007 USD
View
B+
Retailer 7
-
HK$223,324 HKD
$28,463 USD
View
B+
Retailer 8
-
HK$239,795 HKD
€29,107 EUR
View
B+
Retailer 9
-
HK$239,871 HKD
$30,572 USD
View
B+
Retailer 10
-
HK$242,020 HKD
$30,846 USD
View
B
Retailer 11
-
HK$243,072 HKD
$30,980 USD
View
Most Expensive
B
MOH London
52CCB158F · Nov 1
HK$317,700 HKD
£31,883 GBP
View
11 more retailers have this diamond
Prices start from HK$193,427 HKDSave up to HK$124,272 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$193,427 HKD