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Round|Natural|GIA

1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6531904444

Certificate GIA 6531904444

Diamond specifications and retailer prices

From HK$19,778 HKD
As of November 6, 2026
Save HK$27,089 HKD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$46,867 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6531904444. Listed at 14 retailers as of November 5, 2026, with prices from HK$19,778 to HK$46,867, a HK$27,089 spread on the same certified stone. NZ Jewellers lists it at HK$46,867. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6531904444
Dimensions7.28 × 7.24 × 4.56 mm
L/W Ratio1.01
Top View
7.28 mm7.24 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6531904444
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°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 6
Current: HK$46,867 HKD|Low: HK$19,582 HKD|High: HK$46,867 HKD|Avg: HK$29,534 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
Retailer 15
November 6, 2026
Retailer 12HK$19,778 HKD
Retailer 10HK$19,966 HKD
Retailer 13HK$21,700 HKD
Retailer 5HK$23,881 HKD
Retailer 14HK$24,320 HKD
Retailer 6HK$25,128 HKD
Retailer 8HK$25,685 HKD
Retailer 4HK$26,901 HKD
Retailer 2HK$27,544 HKD
Retailer 3HK$27,937 HKD
Retailer 7HK$31,043 HKD
Retailer 9HK$31,247 HKD
Retailer 15HK$36,135 HKD
Retailer 11HK$44,992 HKD
NZ JewellersHK$46,867 HKD

42 data points across 15 retailers

14 retailersHK$19,778 HKD to HK$46,867 HKD

A
Cheapest Retailer
-
HK$19,778 HKD
A
Retailer 2
-
HK$19,966 HKD
View
A
Retailer 3
-
HK$21,700 HKD
View
A
Retailer 4
-
HK$23,881 HKD
View
A
Retailer 5
-
HK$24,320 HKD
View
A
Retailer 6
-
HK$25,128 HKD
View
A
Retailer 7
-
HK$25,685 HKD
View
Retailer 8
-
HK$26,901 HKD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
HK$27,544 HKD
View
B+
Retailer 10
-
HK$27,937 HKD
View
B+
Retailer 11
-
HK$31,043 HKD
View
B+
Retailer 12
-
HK$31,247 HKD
View
B
Retailer 13
-
HK$44,992 HKD
View
Most Expensive
B
NZ Jewellers
b756b306-6707-490a-93b1-43e155f92c84 · Nov 5
HK$46,867 HKD
$5,974 USD
View
13 more retailers have this diamond
Prices start from HK$19,778 HKDSave up to HK$27,089 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$19,778 HKD