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Radiant|Natural|GIA

1.51ct L SI2 Radiant Natural Diamond

EX • L/SI2 • GIA 6435273121

Certificate GIA 6435273121

Diamond specifications and retailer prices

From HK$21,435 HKD
As of November 7, 2026
Save HK$8,707 HKD (29%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$45,512 HKD at NZ Jewellers · As of October 18, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6435273121. Listed at 9 retailers as of November 4, 2026, with a 41% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6435273121
Dimensions6.76 × 5.55 × 3.99 mm
L/W Ratio1.22
Top View
6.76 mm5.55 mm1.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6435273121
Side View
Table 66.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 71.9%

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 7
Current: HK$45,512 HKD|Low: HK$20,565 HKD|High: HK$45,512 HKD|Avg: HK$27,886 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 4HK$20,565 HKD
Retailer 12HK$21,435 HKD
Retailer 10HK$23,191 HKD
Retailer 7HK$26,122 HKD
Retailer 2HK$26,467 HKD
Retailer 6HK$27,031 HKD
Retailer 9HK$27,133 HKD
Retailer 11HK$27,251 HKD
Retailer 5HK$30,143 HKD
Retailer 8HK$30,354 HKD
Retailer 3HK$31,083 HKD
NZ JewellersHK$45,512 HKD

28 data points across 12 retailers

9 retailersHK$21,435 HKD to HK$30,143 HKD

B+
Cheapest Retailer
-
HK$21,435 HKD
Retailer 2
-
HK$23,191 HKD
View
Price last confirmed 18 days ago
Retailer 3
-
HK$26,122 HKD
View
Price last confirmed 18 days ago
B
Retailer 4
-
HK$26,467 HKD
View
B
Retailer 5
-
HK$27,031 HKD
View
Retailer 6
-
HK$27,133 HKD
View
Price last confirmed 22 days ago
B
Retailer 7
-
HK$27,251 HKD
View
B
Retailer 8
-
HK$30,143 HKD
View
Most Expensive
NZ Jewellers
759621d4-8cbd-412f-946b-2d0f3f45db12 · Oct 18
HK$45,512 HKD
$5,807 USD
View
Price last confirmed 20 days ago
8 more retailers have this diamond
Prices start from HK$21,435 HKDSave up to HK$8,707 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$21,435 HKD