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Radiant|Natural|GIA

1.51ct F SI2 Radiant Natural Diamond

ID • F/SI2 • GIA 2556299950

Certificate GIA 2556299950

Diamond specifications and retailer prices

From HK$59,721 HKD
As of November 5, 2026
Save HK$10,126 HKD (14%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$69,847 HKD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded F 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 2556299950. Listed at 4 retailers as of November 5, 2026, with prices from HK$59,721 to HK$69,847, a HK$10,126 spread on the same certified stone. The Diamond Guys lists it at HK$69,847. 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

1.51
Carat
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle51.43°
Pavilion angle35.64°
OriginNatural
Grading LabGIA
CertificateGIA 2556299950
Dimensions7.74 × 5.77 × 3.90 mm
L/W Ratio1.34
Girdle conditionThick
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural
Top View
7.74 mm5.77 mm1.51 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556299950
Side View
Table 70.0%Crown 51.43°Girdle: Very ThinPavilion 35.64°Culet: NoneDepth 67.5%

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 5
Current: HK$62,621 HKD|Low: HK$47,001 HKD|High: HK$81,133 HKD|Avg: HK$62,475 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
The Diamond Guys
November 6, 2026
Retailer 5HK$47,001 HKD
Retailer 6HK$48,984 HKD
Retailer 4HK$53,294 HKD
Retailer 13HK$56,915 HKD
Retailer 2HK$57,393 HKD
Retailer 7HK$59,721 HKD
Retailer 12HK$60,622 HKD
Retailer 10HK$62,456 HKD
Retailer 1HK$62,621 HKD
Retailer 8HK$62,621 HKD
The Diamond GuysHK$69,847 HKD
Retailer 14HK$71,148 HKD
Retailer 9HK$71,563 HKD
Retailer 3HK$71,877 HKD
Retailer 11HK$81,133 HKD

2 data points across 15 retailers

4 retailersHK$59,721 HKD to HK$69,847 HKD

B+
Cheapest Retailer
-
HK$59,721 HKD
B+
Retailer 2
-
HK$62,621 HKD
View
B+
Retailer 3
-
HK$62,621 HKD
View
Most Expensive
B
The Diamond Guys
1992899966 · Nov 6
HK$69,847 HKD
$8,912 USD
View
3 more retailers have this diamond
Prices start from HK$59,721 HKDSave up to HK$10,126 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+
1.51ct Radiant
HK$59,721 HKD