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Princess|Natural|IGI

1.31ct I SI1 Princess Natural Diamond

EX • I/SI1 • IGI 523287337

Shape and cutting style on the report: Princess cut

Certificate IGI 523287337

Diamond specifications and retailer prices

From HK$25,359 HKD
$3,232 USD
As of November 1, 2026
Save HK$24,401 HKD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$51,792 HKD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.31ct natural princess diamond

This 1.31ct natural princess sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 523287337. Listed at 16 retailers as of November 1, 2026, with a 96% 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

1.31
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle60.1°
Pavilion angle38°
OriginNatural
Grading LabIGI
CertificateIGI 523287337
Dimensions5.86 × 5.84 × 4.25 mm
L/W Ratio1.00
Culet sizePointed
Top View
5.86 mm5.84 mm1.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 523287337
Side View
Table 72.5%Crown 60.1°Girdle: MediumPavilion 38°Culet: NoneDepth 72.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$49,760 HKD|Low: HK$24,166 HKD|High: HK$50,321 HKD|Avg: HK$32,503 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
November 3, 2026
Retailer 11HK$25,359 HKD
Retailer 9HK$25,735 HKD
Retailer 13HK$26,363 HKD
Retailer 12HK$27,422 HKD
Retailer 3HK$28,560 HKD
Retailer 4HK$28,560 HKD
Retailer 10HK$29,658 HKD
Retailer 2HK$30,395 HKD
Retailer 5HK$32,954 HKD
Retailer 7HK$33,431 HKD
Retailer 8HK$35,106 HKD
Retailer 6HK$47,760 HKD
NZ JewellersHK$49,760 HKD

45 data points across 13 retailers

16 retailersHK$25,359 HKD to HK$49,760 HKD

B+
Cheapest Retailer
-
HK$25,359 HKD
$3,232 USD
Retailer 2
-
HK$25,735 HKD
$3,280 USD
View
Price last confirmed 15 days ago
B+
Retailer 3
-
HK$26,363 HKD
$3,360 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$27,422 HKD
$3,495 USD
View
B+
Retailer 5
-
HK$28,560 HKD
$3,640 USD
View
B+
Retailer 6
-
HK$28,560 HKD
$3,640 USD
View
B+
Retailer 7
-
HK$29,658 HKD
$3,780 USD
View
Retailer 8
-
HK$29,729 HKD
$3,789 USD
View
Price last confirmed 41 days ago
B+
Retailer 9
-
HK$30,395 HKD
£3,050 GBP
View
B
Retailer 10
-
HK$32,954 HKD
$4,200 USD
View
B+
Retailer 11
-
HK$33,431 HKD
€4,058 EUR
View
Retailer 12
-
HK$34,303 HKD
$4,372 USD
View
Price last confirmed 39 days ago
B
Retailer 13
-
HK$35,106 HKD
ZAR 72,283 ZAR
View
B
Retailer 14
-
HK$47,760 HKD
£4,793 GBP
View
B
Retailer 15
-
HK$49,760 HKD
$6,342 USD
View
Most Expensive
NZ Jewellers
797c3299-f78b-4ca2-b160-8557bc9b8faf · Sep 21
HK$51,792 HKD
$6,601 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from HK$25,359 HKDSave up to HK$24,401 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.

B+
1.31ct Princess
HK$25,359 HKD