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1.51ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 2428630036

Certificate GIA 2428630036

Diamond specifications and retailer prices

From HK$25,575 HKD
As of November 5, 2026
Save HK$30,902 HKD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$56,478 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2428630036. Listed at 11 retailers as of November 5, 2026, with prices from HK$25,575 to HK$56,478, a HK$30,902 spread on the same certified stone. NZ Jewellers lists it at HK$56,478. 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
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2428630036
Dimensions7.29 × 7.32 × 4.58 mm
L/W Ratio1.00
Top View
7.29 mm7.32 mm1.51 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2428630036
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.6%

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$56,478 HKD|Low: HK$25,575 HKD|High: HK$56,478 HKD|Avg: HK$33,890 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
Retailer 13
Retailer 14
November 6, 2026
Retailer 14HK$25,575 HKD
Retailer 3HK$26,266 HKD
Retailer 5HK$28,133 HKD
Retailer 12HK$28,525 HKD
Retailer 6HK$32,346 HKD
Retailer 8HK$32,416 HKD
Retailer 9HK$32,416 HKD
Retailer 10HK$32,416 HKD
Retailer 13HK$33,570 HKD
Retailer 7HK$36,386 HKD
Retailer 11HK$37,406 HKD
Retailer 4HK$38,567 HKD
Retailer 2HK$41,760 HKD
NZ JewellersHK$56,478 HKD

34 data points across 14 retailers

11 retailersHK$25,575 HKD to HK$56,478 HKD

B+
Cheapest Retailer
-
HK$25,575 HKD
B
Retailer 2
-
HK$28,133 HKD
View
B
Retailer 3
-
HK$28,525 HKD
View
B
Retailer 4
-
HK$32,416 HKD
View
Retailer 5
-
HK$32,416 HKD
View
Price last confirmed 8 days ago
B
Retailer 6
-
HK$32,416 HKD
View
B
Retailer 7
-
HK$33,570 HKD
View
B
Retailer 8
-
HK$36,386 HKD
View
B
Retailer 9
-
HK$37,406 HKD
View
B
Retailer 10
-
HK$41,760 HKD
View
Most Expensive
C
NZ Jewellers
78ce4ef3-6b18-4628-9613-46d7894a51ad · Nov 5
HK$56,478 HKD
$7,199 USD
View
10 more retailers have this diamond
Prices start from HK$25,575 HKDSave up to HK$30,902 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 Round
HK$25,575 HKD