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Radiant|Natural|GIA

1.51ct L SI1 Radiant Natural Diamond

EX • L/SI1 • GIA 5456311800

Certificate GIA 5456311800

Diamond specifications and retailer prices

From HK$19,358 HKD
As of November 6, 2026
Save HK$21,796 HKD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$41,154 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 5456311800. Listed at 10 retailers as of November 5, 2026, with prices from HK$19,358 to HK$41,154, a HK$21,796 spread on the same certified stone. NZ Jewellers lists it at HK$41,154. 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
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5456311800
Dimensions7.25 × 5.96 × 4.07 mm
L/W Ratio1.22
Top View
7.25 mm5.96 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 5456311800
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.3%

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 6
Current: HK$41,154 HKD|Low: HK$19,343 HKD|High: HK$41,154 HKD|Avg: HK$23,643 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 3HK$19,358 HKD
Retailer 6HK$19,688 HKD
Retailer 8HK$19,688 HKD
Retailer 9HK$20,597 HKD
Retailer 2HK$20,832 HKD
Retailer 7HK$22,713 HKD
Retailer 5HK$24,029 HKD
Retailer 4HK$24,445 HKD
NZ JewellersHK$41,154 HKD

35 data points across 9 retailers

10 retailersHK$19,358 HKD to HK$41,154 HKD

B+
Cheapest Retailer
-
HK$19,358 HKD
B+
Retailer 2
-
HK$19,515 HKD
View
B+
Retailer 3
-
HK$19,688 HKD
View
Retailer 4
-
HK$19,688 HKD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
HK$20,597 HKD
View
B+
Retailer 6
-
HK$20,832 HKD
View
B
Retailer 7
-
HK$22,713 HKD
View
B
Retailer 8
-
HK$24,029 HKD
View
B
Retailer 9
-
HK$24,445 HKD
View
Most Expensive
C
NZ Jewellers
1db707be-c5eb-4ffe-805f-2ad9ddca4a6d · Nov 5
HK$41,154 HKD
$5,251 USD
View
9 more retailers have this diamond
Prices start from HK$19,358 HKDSave up to HK$21,796 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$19,358 HKD