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Radiant|Natural|GIA

2.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 1567577300

Certificate GIA 1567577300

Diamond specifications and retailer prices

From HK$145,824 HKD
As of November 1, 2026
Save HK$120,787 HKD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$266,611 HKD at MOH London · As of November 2, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1567577300. Listed at 13 retailers as of November 1, 2026, with prices from HK$145,824 to HK$266,611, a HK$120,787 spread on the same certified stone. MOH London lists it at HK$266,611. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1567577300
Dimensions8.84 × 6.77 × 4.66 mm
L/W Ratio1.31
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal
Top View
8.84 mm6.77 mm2.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567577300
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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$266,611 HKD|Low: HK$145,824 HKD|High: HK$268,046 HKD|Avg: HK$191,063 HKD|-0.5%
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 12HK$145,824 HKD
Retailer 2HK$149,580 HKD
Retailer 4HK$173,595 HKD
Retailer 6HK$180,586 HKD
Retailer 3HK$183,560 HKD
Retailer 5HK$196,408 HKD
Retailer 11HK$197,149 HKD
Retailer 9HK$197,855 HKD
Retailer 10HK$204,140 HKD
Retailer 7HK$211,994 HKD
Retailer 8HK$241,848 HKD
MOH LondonHK$266,611 HKD

12 data points across 12 retailers

13 retailersHK$145,824 HKD to HK$266,611 HKD

A
Cheapest Retailer
-
HK$145,824 HKD
A
Retailer 2
-
HK$149,580 HKD
₹1,815,643 INR
View
B+
Retailer 3
-
HK$161,757 HKD
A$31,717 AUD
View
B+
Retailer 4
-
HK$173,595 HKD
$22,125 USD
View
B+
Retailer 5
-
HK$180,586 HKD
$23,016 USD
View
Final sale: no returns
B+
Retailer 6
-
HK$183,560 HKD
$23,395 USD
View
B+
Retailer 7
-
HK$196,408 HKD
£19,711 GBP
View
B
Retailer 8
-
HK$197,149 HKD
$25,127 USD
View
B+
Retailer 9
-
HK$197,855 HKD
$25,217 USD
View
B
Retailer 10
-
HK$204,140 HKD
$26,018 USD
View
B
Retailer 11
-
HK$211,994 HKD
$27,019 USD
View
B
Retailer 12
-
HK$241,848 HKD
$30,824 USD
View
Most Expensive
B
MOH London
ECDD29573 · Nov 2
HK$266,611 HKD
£26,756 GBP
View
12 more retailers have this diamond
Prices start from HK$145,824 HKDSave up to HK$120,787 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$145,824 HKD