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Princess|Natural|IGI

1.51ct I SI1 Princess Natural Diamond

EX • I/SI1 • IGI 683576294

Shape and cutting style on the report: Princess cut

Certificate IGI 683576294

Diamond specifications and retailer prices

From HK$20,573 HKD
As of November 6, 2026
Save HK$21,498 HKD (51%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$43,952 HKD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 683576294. Listed at 17 retailers as of November 4, 2026, with a 104% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39°
Pavilion angle37.9°
OriginNatural
Grading LabIGI
CertificateIGI 683576294
Dimensions6.47 × 6.42 × 4.35 mm
L/W Ratio1.01
Culet sizePointed
Top View
6.47 mm6.42 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 683576294
Side View
Table 71.0%Crown 39°Girdle: MediumPavilion 37.9°Culet: NoneDepth 67.8%

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$20,573 HKD|Low: HK$20,573 HKD|High: HK$42,635 HKD|Avg: HK$27,746 HKD|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1HK$20,573 HKD
Retailer 6HK$22,391 HKD
Retailer 2HK$23,802 HKD
Retailer 4HK$26,577 HKD
Retailer 3HK$29,367 HKD
Retailer 5HK$30,785 HKD
Retailer 7HK$42,071 HKD

27 data points across 7 retailers

17 retailersHK$20,573 HKD to HK$42,071 HKD

A
Cheapest Retailer
-
HK$20,573 HKD
A
Retailer 2
-
HK$22,391 HKD
View
A
Retailer 3
-
HK$23,277 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$23,567 HKD
View
A
Retailer 5
-
HK$23,591 HKD
View
A
Retailer 6
-
HK$23,802 HKD
View
A
Retailer 7
-
HK$25,103 HKD
View
Retailer 8
-
HK$25,229 HKD
View
Price last confirmed 21 days ago
Retailer 9
-
HK$25,229 HKD
View
Price last confirmed 19 days ago
Retailer 10
-
HK$26,193 HKD
View
Price last confirmed 22 days ago
A
Retailer 11
-
HK$26,349 HKD
View
A
Retailer 12
-
HK$26,577 HKD
View
Retailer 13
-
HK$29,108 HKD
View
Price last confirmed 18 days ago
A
Retailer 14
-
HK$29,367 HKD
View
A
Retailer 15
-
HK$30,785 HKD
View
B+
Retailer 16
-
HK$42,071 HKD
View
Most Expensive
NZ Jewellers
307087c8-3e1b-425a-be93-5a519e2e8e44 · Oct 17
HK$43,952 HKD
$5,608 USD
View
Price last confirmed 20 days ago
16 more retailers have this diamond
Prices start from HK$20,573 HKDSave up to HK$21,498 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 Princess
HK$20,573 HKD