CaratHunter
Plans
Radiant|Natural|GIA

2.51ct E SI2 Radiant Natural Diamond

ID • E/SI2 • GIA 5242078589

Certificate GIA 5242078589

Diamond specifications and retailer prices

From HK$166,605 HKD
As of October 30, 2026
Save HK$144,462 HKD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$311,067 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5242078589. Listed at 8 retailers as of October 29, 2026, with prices from HK$166,605 to HK$311,067, a HK$144,462 spread on the same certified stone. MOH London lists it at HK$311,067. 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
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle61.36°
OriginNatural
Grading LabGIA
CertificateGIA 5242078589
Dimensions9.61 × 6.85 × 4.44 mm
L/W Ratio1.40
Key to symbols
Feather, Crystal, Needle
Top View
9.61 mm6.85 mm2.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5242078589
Side View
Table 66.0%CrownGirdle: STK-THKPavilion 61.36°Culet: NoneDepth 64.9%

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$311,067 HKD|Low: HK$166,605 HKD|High: HK$317,873 HKD|Avg: HK$227,293 HKD|-2.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4HK$166,605 HKD
Retailer 8HK$186,971 HKD
Retailer 3HK$221,003 HKD
Retailer 7HK$226,435 HKD
Retailer 5HK$228,247 HKD
Retailer 6HK$235,497 HKD
Retailer 2HK$278,993 HKD
MOH LondonHK$311,067 HKD

23 data points across 8 retailers

8 retailersHK$166,605 HKD to HK$311,067 HKD

A
Cheapest Retailer
-
HK$166,605 HKD
Retailer 2
-
HK$186,971 HKD
SGD 32,204 SGD
View
Price last confirmed 18 days ago
B+
Retailer 3
-
HK$221,003 HKD
£22,180 GBP
View
B+
Retailer 4
-
HK$226,435 HKD
$28,861 USD
View
B+
Retailer 5
-
HK$228,247 HKD
$29,092 USD
View
B+
Retailer 6
-
HK$235,497 HKD
$30,016 USD
View
B
Retailer 7
-
HK$278,993 HKD
$35,560 USD
View
Most Expensive
B
MOH London
D397146F4 · Oct 29
HK$311,067 HKD
£31,219 GBP
View
7 more retailers have this diamond
Prices start from HK$166,605 HKDSave up to HK$144,462 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 Radiant
HK$166,605 HKD