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Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6492695970

Certificate GIA 6492695970

Diamond specifications and retailer prices

From HK$41,070 HKD
As of November 4, 2026
Save HK$49,739 HKD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$90,808 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6492695970. Listed at 18 retailers as of November 4, 2026, with prices from HK$41,070 to HK$90,808, a HK$49,739 spread on the same certified stone. NZ Jewellers lists it at HK$90,808. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6492695970
Dimensions7.45 × 7.42 × 4.48 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.45 mm7.42 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6492695970
Side View
Table 58.0%Crown 32°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.4%

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 4
Current: HK$90,808 HKD|Low: HK$39,414 HKD|High: HK$90,808 HKD|Avg: HK$54,704 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
Retailer 13
Retailer 14
November 6, 2026
Retailer 10HK$41,070 HKD
Retailer 14HK$41,697 HKD
Retailer 12HK$42,898 HKD
Retailer 5HK$45,408 HKD
Retailer 3HK$48,468 HKD
Retailer 6HK$49,189 HKD
Retailer 11HK$49,189 HKD
Retailer 13HK$49,189 HKD
Retailer 2HK$51,213 HKD
Retailer 8HK$55,607 HKD
Retailer 7HK$56,211 HKD
Retailer 4HK$59,851 HKD
Retailer 9HK$79,770 HKD
NZ JewellersHK$90,808 HKD

43 data points across 14 retailers

18 retailersHK$41,070 HKD to HK$90,808 HKD

A
Cheapest Retailer
-
HK$41,070 HKD
A
Retailer 2
-
HK$41,697 HKD
View
A
Retailer 3
-
HK$42,898 HKD
View
B+
Retailer 4
-
HK$44,576 HKD
View
B+
Retailer 5
-
HK$45,408 HKD
View
Final sale: no returns
B+
Retailer 6
-
HK$48,468 HKD
View
B+
Retailer 7
-
HK$49,189 HKD
View
Retailer 8
-
HK$49,189 HKD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
HK$49,189 HKD
View
B+
Retailer 10
-
HK$51,213 HKD
View
B+
Retailer 11
-
HK$53,975 HKD
View
B+
Retailer 12
-
HK$53,975 HKD
View
B+
Retailer 13
-
HK$55,607 HKD
View
B
Retailer 14
-
HK$55,779 HKD
View
B
Retailer 15
-
HK$56,211 HKD
View
Retailer 16
-
HK$59,851 HKD
View
Price last confirmed 14 days ago
B
Retailer 17
-
HK$79,770 HKD
View
Most Expensive
B
NZ Jewellers
a8bcc0aa-6120-4e93-99b0-72c672bdba76 · Nov 5
HK$90,808 HKD
$11,575 USD
View
17 more retailers have this diamond
Prices start from HK$41,070 HKDSave up to HK$49,739 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$41,070 HKD