Princess|Natural|IGI

1.31ct I VS1 Princess Natural Diamond

VG • I/VS1 • IGI 578341627

Shape and cutting style on the report: Princess cut

Certificate IGI 578341627

Diamond specifications and retailer prices

From $4,158 USD
£3,274 GBP
As of October 31, 2026
Save $2,524 USD (38%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,681 USD at MOH London · As of October 25, 2026
View at MOH London

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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 578341627. Listed at 4 retailers as of October 25, 2026, with prices from $4,158 to $6,681, a $2,524 spread on the same certified stone. MOH London lists it at $6,681. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.31
Carat
I
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.2°
Pavilion angle37.2°
OriginNatural
Grading LabIGI
CertificateIGI 578341627
Dimensions5.85 × 5.80 × 4.23 mm
L/W Ratio1.01
Culet sizePointed
Top View
5.85 mm5.80 mm1.31 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 578341627
Side View
Table 69.0%Crown 49.2°Girdle: Slightly ThickPavilion 37.2°Culet: NoneDepth 72.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: $6,681 USD|Low: $3,580 USD|High: $6,753 USD|Avg: $4,468 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 4$3,580 USD
Retailer 5$3,595 USD
Retailer 2$4,158 USD
Retailer 3$4,516 USD
MOH London$6,681 USD

41 data points across 5 retailers

4 retailers$4,158 USD to $6,681 USD

Retailer 1
-
$3,580 USD
Price last confirmed 13 days ago
B+
Retailer 2
-
$4,158 USD
£3,274 GBP
View
B+
Retailer 3
-
$4,516 USD
€4,301 EUR
View
Most Expensive
B
MOH London
3E8B9D7D2 · Oct 25
$6,681 USD
£5,261 GBP
View
3 more retailers have this diamond
Prices start from $4,158 USDSave up to $2,524 USD

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
$4,158 USD