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Round|Natural|GIA

1.51ct H SI2 Round Natural Diamond

ID • H/SI2 • GIA 53

Certificate GIA 53

Diamond specifications and retailer prices

From HK$25,764 HKD
As of October 31, 2026
Save HK$26,933 HKD (51%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$53,818 HKD at NZ Jewellers · As of September 24, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 14 retailers as of October 31, 2026, with a 105% 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
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 53
Dimensions7.27 × 7.31 × 4.58 mm
L/W Ratio1.01
Top View
7.27 mm7.31 mm1.51 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 53
Side View
Table 58.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$52,696 HKD|Low: HK$25,764 HKD|High: HK$53,818 HKD|Avg: HK$36,701 HKD|-2.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 5HK$25,764 HKD
Retailer 4HK$27,968 HKD
Retailer 7HK$30,243 HKD
Retailer 6HK$31,412 HKD
Retailer 2HK$32,205 HKD
Retailer 3HK$48,013 HKD
NZ JewellersHK$52,696 HKD

17 data points across 7 retailers

14 retailersHK$25,764 HKD to HK$52,696 HKD

A
Cheapest Retailer
-
HK$25,764 HKD
A
Retailer 2
-
HK$27,968 HKD
View
A
Retailer 3
-
HK$30,243 HKD
View
Retailer 4
-
HK$30,463 HKD
View
Price last confirmed 17 days ago
Retailer 5
-
HK$30,887 HKD
View
Price last confirmed 43 days ago
Retailer 6
-
HK$30,887 HKD
View
Price last confirmed 44 days ago
A
Retailer 7
-
HK$31,412 HKD
View
Retailer 8
-
HK$31,632 HKD
View
Price last confirmed 22 days ago
A
Retailer 9
-
HK$32,205 HKD
View
B+
Retailer 10
-
HK$48,013 HKD
View
B+
Retailer 11
-
HK$52,696 HKD
View
Retailer 12
-
HK$53,065 HKD
View
Price last confirmed 17 days ago
Retailer 13
-
HK$53,818 HKD
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
9d33346a-86a3-45f0-90af-7e410cc52304 · Sep 24
HK$53,818 HKD
$6,860 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from HK$25,764 HKDSave up to HK$26,933 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.

A
1.51ct Round
HK$25,764 HKD