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2.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6422459741

Certificate GIA 6422459741

Diamond specifications and retailer prices

From HK$219,758 HKD
$28,010 USD
As of November 1, 2026
Save HK$157,211 HKD (42%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$376,969 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 6422459741. Listed at 13 retailers as of November 1, 2026, with prices from HK$219,758 to HK$376,969, a HK$157,211 spread on the same certified stone. MOH London lists it at HK$376,969. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6422459741
Dimensions8.71 × 8.74 × 5.38 mm
L/W Ratio1.00
Top View
8.71 mm8.74 mm2.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6422459741
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.7%

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$376,969 HKD|Low: HK$201,148 HKD|High: HK$381,513 HKD|Avg: HK$273,524 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7HK$215,969 HKD
Retailer 5HK$221,264 HKD
Retailer 6HK$241,087 HKD
Retailer 2HK$243,714 HKD
Retailer 3HK$291,575 HKD
Retailer 4HK$333,768 HKD
MOH LondonHK$376,969 HKD

39 data points across 7 retailers

13 retailersHK$219,758 HKD to HK$376,969 HKD

B+
Cheapest Retailer
-
HK$219,758 HKD
$28,010 USD
B+
Retailer 2
-
HK$221,264 HKD
$28,202 USD
View
Final sale: no returns
Retailer 3
-
HK$241,087 HKD
A$47,275 AUD
View
Price last confirmed 29 days ago
B
Retailer 4
-
HK$241,373 HKD
$30,765 USD
View
B
Retailer 5
-
HK$243,714 HKD
£24,459 GBP
View
B
Retailer 6
-
HK$245,131 HKD
$31,244 USD
View
B
Retailer 7
-
HK$251,431 HKD
$32,047 USD
View
B
Retailer 8
-
HK$253,447 HKD
$32,304 USD
View
B
Retailer 9
-
HK$261,489 HKD
$33,329 USD
View
B
Retailer 10
-
HK$271,548 HKD
$34,611 USD
View
B
Retailer 11
-
HK$291,575 HKD
€35,394 EUR
View
B
Retailer 12
-
HK$333,768 HKD
ZAR 687,262 ZAR
View
Most Expensive
B
MOH London
F205D9262 · Nov 1
HK$376,969 HKD
£37,833 GBP
View
12 more retailers have this diamond
Prices start from HK$219,758 HKDSave up to HK$157,211 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$219,758 HKD