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Round|Natural|GIA

1.51ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5242042566

Certificate GIA 5242042566

Diamond specifications and retailer prices

From HK$26,412 HKD
As of November 1, 2026
Save HK$36,330 HKD (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$62,742 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5242042566. Listed at 9 retailers as of October 30, 2026, with prices from HK$26,412 to HK$62,742, a HK$36,330 spread on the same certified stone. NZ Jewellers lists it at HK$62,742. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5242042566
Dimensions7.24 × 7.28 × 4.56 mm
L/W Ratio1.01
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.24 mm7.28 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242042566
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.8%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: HK$62,742 HKD|Low: HK$26,211 HKD|High: HK$67,096 HKD|Avg: HK$43,460 HKD|-6.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5HK$26,412 HKD
Retailer 9HK$33,604 HKD
Retailer 6HK$36,012 HKD
Retailer 7HK$36,012 HKD
Retailer 8HK$38,334 HKD
Retailer 4HK$40,523 HKD
Retailer 2HK$43,014 HKD
Retailer 3HK$57,363 HKD
NZ JewellersHK$62,742 HKD

40 data points across 9 retailers

9 retailersHK$26,412 HKD to HK$62,742 HKD

A
Cheapest Retailer
-
HK$26,412 HKD
B+
Retailer 2
-
HK$33,604 HKD
SGD 5,788 SGD
View
B+
Retailer 3
-
HK$36,012 HKD
$4,590 USD
View
B+
Retailer 4
-
HK$36,012 HKD
$4,590 USD
View
B+
Retailer 5
-
HK$38,334 HKD
$4,886 USD
View
B+
Retailer 6
-
HK$40,523 HKD
€4,919 EUR
View
B
Retailer 7
-
HK$43,014 HKD
£4,317 GBP
View
B
Retailer 8
-
HK$57,363 HKD
£5,757 GBP
View
Most Expensive
B
NZ Jewellers
94b0a966-6652-4bf5-97c4-71571a5704a1 · Oct 30
HK$62,742 HKD
$7,997 USD
View
8 more retailers have this diamond
Prices start from HK$26,412 HKDSave up to HK$36,330 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$26,412 HKD