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1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 648418562

Shape and cutting style on the report: Round brilliant

Certificate IGI 648418562

Diamond specifications and retailer prices

From HK$15,235 HKD
As of November 6, 2026
Save HK$29,443 HKD (66%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$44,678 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 IGI 648418562. Listed at 13 retailers as of November 5, 2026, with prices from HK$15,235 to HK$44,678, a HK$29,443 spread on the same certified stone. NZ Jewellers lists it at HK$44,678. 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
FluorescenceNone
Crown angle33.4°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 648418562
Dimensions7.47 × 7.42 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.47 mm7.42 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 648418562
Side View
Table 58.0%Crown 33.4°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.0%

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 6
Current: HK$15,235 HKD|Low: HK$15,235 HKD|High: HK$37,884 HKD|Avg: HK$23,143 HKD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1HK$15,235 HKD
Retailer 6HK$19,134 HKD
Retailer 5HK$19,433 HKD
Retailer 7HK$19,495 HKD
Retailer 3HK$23,457 HKD
Retailer 2HK$28,203 HKD
Retailer 4HK$37,335 HKD

38 data points across 7 retailers

13 retailersHK$15,235 HKD to HK$44,678 HKD

A
Cheapest Retailer
-
HK$15,235 HKD
B+
Retailer 2
-
HK$19,134 HKD
View
A
Retailer 3
-
HK$19,433 HKD
View
B+
Retailer 4
-
HK$19,495 HKD
View
B+
Retailer 5
-
HK$21,370 HKD
View
Retailer 6
-
HK$21,370 HKD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
HK$22,194 HKD
View
B+
Retailer 8
-
HK$22,476 HKD
View
A
Retailer 9
-
HK$23,457 HKD
View
B+
Retailer 10
-
HK$24,657 HKD
View
B+
Retailer 11
-
HK$28,203 HKD
View
B+
Retailer 12
-
HK$37,335 HKD
View
Most Expensive
B
NZ Jewellers
16172003-4e4c-4cee-b131-80db80be7fc9 · Nov 5
HK$44,678 HKD
$5,695 USD
View
12 more retailers have this diamond
Prices start from HK$15,235 HKDSave up to HK$29,443 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$15,235 HKD