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1.51ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 1449322551

Certificate GIA 1449322551

Diamond specifications and retailer prices

From HK$27,984 HKD
As of November 5, 2026
Save HK$28,494 HKD (50%) 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 1449322551. Listed at 11 retailers as of November 5, 2026, with prices from HK$27,984 to HK$56,478, a HK$28,494 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 angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1449322551
Dimensions7.47 × 7.48 × 4.44 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
7.47 mm7.48 mm1.51 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1449322551
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41°Culet: NoneDepth 59.4%

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$26,266 HKD|High: HK$56,478 HKD|Avg: HK$35,038 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 6, 2026
Retailer 3HK$26,266 HKD
Retailer 12HK$27,984 HKD
Retailer 10HK$28,525 HKD
Retailer 6HK$32,416 HKD
Retailer 7HK$32,416 HKD
Retailer 8HK$32,416 HKD
Retailer 11HK$33,570 HKD
Retailer 5HK$36,535 HKD
Retailer 9HK$37,406 HKD
Retailer 4HK$38,567 HKD
Retailer 2HK$41,760 HKD
NZ JewellersHK$56,478 HKD

38 data points across 12 retailers

11 retailersHK$27,984 HKD to HK$56,478 HKD

B+
Cheapest Retailer
-
HK$27,984 HKD
B+
Retailer 2
-
HK$28,133 HKD
View
B
Retailer 3
-
HK$28,525 HKD
View
Retailer 4
-
HK$32,416 HKD
View
Price last confirmed 8 days ago
B
Retailer 5
-
HK$32,416 HKD
View
B
Retailer 6
-
HK$32,416 HKD
View
B
Retailer 7
-
HK$33,570 HKD
View
B
Retailer 8
-
HK$36,535 HKD
View
B
Retailer 9
-
HK$37,406 HKD
View
B
Retailer 10
-
HK$41,760 HKD
View
Most Expensive
C
NZ Jewellers
114721b4-1935-4c42-9da7-1e9b2b166e50 · Nov 5
HK$56,478 HKD
$7,199 USD
View
10 more retailers have this diamond
Prices start from HK$27,984 HKDSave up to HK$28,494 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$27,984 HKD