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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 $4,133 SGD
$3,232 USD
As of November 1, 2026
Save $3,977 SGD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,442 SGD 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 October 30, 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: $8,111 SGD|Low: $3,939 SGD|High: $8,202 SGD|Avg: $5,294 SGD
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 2, 2026
Retailer 11$4,133 SGD
Retailer 9$4,195 SGD
Retailer 13$4,297 SGD
Retailer 12$4,470 SGD
Retailer 3$4,655 SGD
Retailer 4$4,655 SGD
Retailer 10$4,834 SGD
Retailer 7$4,954 SGD
Retailer 5$5,371 SGD
Retailer 6$5,449 SGD
Retailer 8$5,722 SGD
Retailer 2$7,785 SGD
NZ Jewellers$8,111 SGD

45 data points across 13 retailers

16 retailers$4,133 SGD to $8,111 SGD

B+
Cheapest Retailer
-
$4,133 SGD
$3,232 USD
Retailer 2
-
$4,195 SGD
$3,280 USD
View
Price last confirmed 15 days ago
B+
Retailer 3
-
$4,297 SGD
$3,360 USD
View
Final sale: no returns
B+
Retailer 4
-
$4,470 SGD
$3,495 USD
View
B+
Retailer 5
-
$4,655 SGD
$3,640 USD
View
B+
Retailer 6
-
$4,655 SGD
$3,640 USD
View
B+
Retailer 7
-
$4,834 SGD
$3,780 USD
View
Retailer 8
-
$4,846 SGD
$3,789 USD
View
Price last confirmed 41 days ago
B+
Retailer 9
-
$4,954 SGD
£3,050 GBP
View
B
Retailer 10
-
$5,371 SGD
$4,200 USD
View
B+
Retailer 11
-
$5,449 SGD
€4,058 EUR
View
Retailer 12
-
$5,591 SGD
$4,372 USD
View
Price last confirmed 39 days ago
B
Retailer 13
-
$5,722 SGD
ZAR 72,283 ZAR
View
B
Retailer 14
-
$7,785 SGD
£4,793 GBP
View
B
Retailer 15
-
$8,111 SGD
$6,342 USD
View
Most Expensive
NZ Jewellers
797c3299-f78b-4ca2-b160-8557bc9b8faf · Sep 21
$8,442 SGD
$6,601 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from $4,133 SGDSave up to $3,977 SGD

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
$4,133 SGD