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Round|Natural|GIA

1.51ct M SI2 Round Natural Diamond

VG • M/SI2 • GIA 2456800101

Certificate GIA 2456800101

Diamond specifications and retailer prices

From HK$14,278 HKD
As of November 5, 2026
Save HK$7,139 HKD (33%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$38,543 HKD at NZ Jewellers · As of October 30, 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 very-good cut grade and certified by GIA 2456800101. Listed at 9 retailers as of November 5, 2026, with a 50% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
M
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 2456800101
Dimensions7.14 × 7.23 × 4.58 mm
L/W Ratio1.01
Star length50%
Top View
7.14 mm7.23 mm1.51 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2456800101
Side View
Table 57.0%Crown 37.5°Girdle: THN-THKPavilion 40.4°Culet: NoneDepth 63.7%

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$38,543 HKD|Low: HK$10,489 HKD|High: HK$38,543 HKD|Avg: HK$18,939 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 5, 2026
Retailer 4HK$10,489 HKD
Retailer 3HK$14,278 HKD
Retailer 7HK$15,314 HKD
Retailer 6HK$15,800 HKD
Retailer 8HK$15,800 HKD
Retailer 5HK$16,530 HKD
Retailer 10HK$16,883 HKD
Retailer 9HK$18,232 HKD
Retailer 11HK$18,805 HKD
Retailer 2HK$21,417 HKD
Retailer 12HK$25,528 HKD
NZ JewellersHK$38,543 HKD

20 data points across 12 retailers

9 retailersHK$14,278 HKD to HK$21,417 HKD

B+
Cheapest Retailer
-
HK$14,278 HKD
B+
Retailer 2
-
HK$15,314 HKD
View
B+
Retailer 3
-
HK$15,800 HKD
View
Retailer 4
-
HK$15,800 HKD
View
Price last confirmed 8 days ago
Retailer 5
-
HK$16,530 HKD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
HK$16,883 HKD
View
B+
Retailer 7
-
HK$18,232 HKD
View
B+
Retailer 8
-
HK$21,417 HKD
View
Most Expensive
NZ Jewellers
a20808a0-c760-416a-9112-41d39527abfd · Oct 30
HK$38,543 HKD
$4,913 USD
View
Price last confirmed 7 days ago
8 more retailers have this diamond
Prices start from HK$14,278 HKDSave up to HK$7,139 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$14,278 HKD