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1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 762582313

Shape and cutting style on the report: Round brilliant

Certificate IGI 762582313

Diamond specifications and retailer prices

From HK$16,561 HKD
As of November 5, 2026
Save HK$15,479 HKD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$44,882 HKD at NZ Jewellers · As of September 26, 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 IGI 762582313. Listed at 13 retailers as of November 4, 2026, with a 93% 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.4°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 762582313
Dimensions7.26 × 7.30 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.26 mm7.30 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 762582313
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 63.0%

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: Nov 5
Current: HK$24,202 HKD|Low: HK$16,561 HKD|High: HK$38,065 HKD|Avg: HK$24,496 HKD|-16.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7HK$16,561 HKD
Retailer 5HK$19,291 HKD
Retailer 6HK$19,425 HKD
Retailer 8HK$20,013 HKD
Retailer 2HK$21,017 HKD
Retailer 3HK$21,300 HKD
Retailer 1HK$24,202 HKD
Retailer 9HK$24,799 HKD
Retailer 4HK$32,040 HKD

27 data points across 9 retailers

13 retailersHK$16,561 HKD to HK$32,040 HKD

A
Cheapest Retailer
-
HK$16,561 HKD
A
Retailer 2
-
HK$19,291 HKD
View
A
Retailer 3
-
HK$19,425 HKD
View
Retailer 4
-
HK$20,013 HKD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$21,017 HKD
View
A
Retailer 6
-
HK$21,300 HKD
View
Retailer 7
-
HK$21,472 HKD
View
Price last confirmed 29 days ago
Retailer 8
-
HK$21,472 HKD
View
Price last confirmed 25 days ago
Retailer 9
-
HK$22,296 HKD
View
Price last confirmed 38 days ago
A
Retailer 10
-
HK$24,202 HKD
View
Retailer 11
-
HK$24,775 HKD
View
Price last confirmed 28 days ago
B+
Retailer 12
-
HK$32,040 HKD
View
Most Expensive
NZ Jewellers
b342702d-3fa6-4042-a6e4-f596b5ad42a7 · Sep 26
HK$44,882 HKD
$5,721 USD
View
Price last confirmed 40 days ago
12 more retailers have this diamond
Prices start from HK$16,561 HKDSave up to HK$15,479 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$16,561 HKD