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Radiant|Natural|GIA

1.51ct L SI1 Radiant Natural Diamond

EX • L/SI1 • GIA 6551369573

Certificate GIA 6551369573

Diamond specifications and retailer prices

From HK$18,794 HKD
As of November 6, 2026
Save HK$21,169 HKD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$39,963 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551369573. Listed at 10 retailers as of November 5, 2026, with prices from HK$18,794 to HK$39,963, a HK$21,169 spread on the same certified stone. NZ Jewellers lists it at HK$39,963. 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
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551369573
Dimensions7.50 × 5.56 × 3.93 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Pinpoint
Top View
7.50 mm5.56 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551369573
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.5%

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 6
Current: HK$39,963 HKD|Low: HK$18,778 HKD|High: HK$39,963 HKD|Avg: HK$22,500 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3HK$18,794 HKD
Retailer 10HK$19,006 HKD
Retailer 6HK$19,115 HKD
Retailer 8HK$19,115 HKD
Retailer 9HK$19,993 HKD
Retailer 2HK$20,220 HKD
Retailer 7HK$22,054 HKD
Retailer 5HK$23,324 HKD
Retailer 4HK$23,724 HKD
NZ JewellersHK$39,963 HKD

37 data points across 10 retailers

10 retailersHK$18,794 HKD to HK$39,963 HKD

A
Cheapest Retailer
-
HK$18,794 HKD
B+
Retailer 2
-
HK$19,006 HKD
View
B+
Retailer 3
-
HK$19,115 HKD
View
Retailer 4
-
HK$19,115 HKD
View
Price last confirmed 13 days ago
B+
Retailer 5
-
HK$19,993 HKD
View
B+
Retailer 6
-
HK$20,220 HKD
View
B+
Retailer 7
-
HK$22,054 HKD
View
B
Retailer 8
-
HK$23,324 HKD
View
B
Retailer 9
-
HK$23,724 HKD
View
Most Expensive
C
NZ Jewellers
c177503c-87dd-41ac-a55e-122f567601ac · Nov 5
HK$39,963 HKD
$5,099 USD
View
9 more retailers have this diamond
Prices start from HK$18,794 HKDSave up to HK$21,169 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
1.51ct Radiant
HK$18,794 HKD