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2.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2547204671

Certificate GIA 2547204671

Diamond specifications and retailer prices

From HK$178,154 HKD
As of November 1, 2026
Save HK$140,476 HKD (44%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$318,630 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 2547204671. Listed at 18 retailers as of November 1, 2026, with prices from HK$178,154 to HK$318,630, a HK$140,476 spread on the same certified stone. MOH London lists it at HK$318,630. 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 angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2547204671
Dimensions8.67 × 8.63 × 5.37 mm
L/W Ratio1.00
Top View
8.67 mm8.63 mm2.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547204671
Side View
Table 60.0%Crown 33.5°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 62.1%

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: Nov 1
Current: HK$318,630 HKD|Low: HK$178,154 HKD|High: HK$322,466 HKD|Avg: HK$228,613 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
November 2, 2026
Retailer 9HK$178,154 HKD
Retailer 3HK$204,020 HKD
Retailer 6HK$205,602 HKD
Retailer 2HK$205,849 HKD
Retailer 8HK$212,516 HKD
Retailer 7HK$214,219 HKD
Retailer 10HK$221,021 HKD
Retailer 11HK$229,518 HKD
Retailer 4HK$246,456 HKD
Retailer 5HK$282,111 HKD
MOH LondonHK$318,630 HKD

42 data points across 11 retailers

18 retailersHK$178,154 HKD to HK$318,630 HKD

A
Cheapest Retailer
-
HK$178,154 HKD
A
Retailer 2
-
HK$185,747 HKD
$23,675 USD
View
B+
Retailer 3
-
HK$198,575 HKD
$25,310 USD
View
B+
Retailer 4
-
HK$204,020 HKD
$26,004 USD
View
Retailer 5
-
HK$205,602 HKD
A$40,316 AUD
View
Price last confirmed 29 days ago
B+
Retailer 6
-
HK$205,849 HKD
£20,659 GBP
View
B+
Retailer 7
-
HK$208,868 HKD
$26,622 USD
View
B+
Retailer 8
-
HK$212,516 HKD
$27,087 USD
View
B+
Retailer 9
-
HK$214,219 HKD
$27,304 USD
View
B+
Retailer 10
-
HK$218,082 HKD
$27,796 USD
View
B+
Retailer 11
-
HK$220,307 HKD
$28,080 USD
View
B+
Retailer 12
-
HK$220,307 HKD
$28,080 USD
View
B+
Retailer 13
-
HK$221,021 HKD
$28,171 USD
View
B+
Retailer 14
-
HK$227,604 HKD
$29,010 USD
View
B+
Retailer 15
-
HK$229,518 HKD
$29,254 USD
View
B
Retailer 16
-
HK$246,456 HKD
€29,917 EUR
View
B
Retailer 17
-
HK$282,111 HKD
ZAR 580,895 ZAR
View
Most Expensive
B
MOH London
B5DB54B5F · Nov 1
HK$318,630 HKD
£31,978 GBP
View
17 more retailers have this diamond
Prices start from HK$178,154 HKDSave up to HK$140,476 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$178,154 HKD