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Round|Natural|GIA

1.51ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 7508361844

Certificate GIA 7508361844

Diamond specifications and retailer prices

From HK$21,127 HKD
As of November 4, 2026
Save HK$28,196 HKD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$49,323 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 7508361844. Listed at 13 retailers as of November 4, 2026, with prices from HK$21,127 to HK$49,323, a HK$28,196 spread on the same certified stone. NZ Jewellers lists it at HK$49,323. 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
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7508361844
Dimensions7.30 × 7.35 × 4.62 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Key to symbols
Feather, Twinning Wisp, Crystal, Needle
Top View
7.30 mm7.35 mm1.51 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7508361844
Side View
Table 56.0%Crown 34.5°Girdle: STK-MEDPavilion 41.6°Culet: NoneDepth 63.0%

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 4
Current: HK$49,323 HKD|Low: HK$21,127 HKD|High: HK$49,323 HKD|Avg: HK$27,491 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 7HK$21,127 HKD
Retailer 9HK$21,786 HKD
Retailer 11HK$23,591 HKD
Retailer 12HK$23,591 HKD
Retailer 6HK$24,501 HKD
Retailer 4HK$24,705 HKD
Retailer 5HK$25,834 HKD
Retailer 8HK$26,956 HKD
Retailer 10HK$27,223 HKD
Retailer 3HK$28,070 HKD
Retailer 2HK$31,138 HKD
NZ JewellersHK$49,323 HKD

35 data points across 12 retailers

13 retailersHK$21,127 HKD to HK$49,323 HKD

B+
Cheapest Retailer
-
HK$21,127 HKD
B+
Retailer 2
-
HK$21,786 HKD
View
Retailer 3
-
HK$23,591 HKD
View
Price last confirmed 60 days ago
Retailer 4
-
HK$23,591 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$23,591 HKD
View
B+
Retailer 6
-
HK$24,501 HKD
View
B+
Retailer 7
-
HK$24,705 HKD
View
B+
Retailer 8
-
HK$25,834 HKD
View
B
Retailer 9
-
HK$26,956 HKD
View
Retailer 10
-
HK$27,223 HKD
View
Price last confirmed 60 days ago
B
Retailer 11
-
HK$27,223 HKD
View
B
Retailer 12
-
HK$31,138 HKD
View
Most Expensive
C
NZ Jewellers
c14ff665-9328-4d6b-9dba-aea7e48398d8 · Nov 5
HK$49,323 HKD
$6,287 USD
View
12 more retailers have this diamond
Prices start from HK$21,127 HKDSave up to HK$28,196 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$21,127 HKD