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1.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5242048140

Certificate GIA 5242048140

Diamond specifications and retailer prices

From €2,962 EUR
$3,322 USD
As of November 1, 2026
Save €2,803 EUR (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €5,765 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.31ct natural round diamond

This 1.31ct natural round 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 GIA 5242048140. Listed at 16 retailers as of October 30, 2026, with prices from €2,962 to €5,765, a €2,803 spread on the same certified stone. NZ Jewellers lists it at €5,765. 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 angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5242048140
Dimensions6.91 × 6.96 × 4.36 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
6.91 mm6.96 mm1.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242048140
Side View
Table 57.0%Crown 35.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.9%

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 1
Current: €5,765 EUR|Low: €2,962 EUR|High: €5,908 EUR|Avg: €3,712 EUR|-1.6%
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
Retailer 14
Retailer 15
November 2, 2026
Retailer 7€2,962 EUR
Retailer 9€2,982 EUR
Retailer 5€3,054 EUR
Retailer 15€3,174 EUR
Retailer 2€3,184 EUR
Retailer 4€3,309 EUR
Retailer 14€3,309 EUR
Retailer 8€3,409 EUR
Retailer 3€3,436 EUR
Retailer 13€3,439 EUR
Retailer 6€3,818 EUR
Retailer 11€3,858 EUR
Retailer 12€4,067 EUR
Retailer 10€5,534 EUR
NZ Jewellers€5,765 EUR

22 data points across 15 retailers

16 retailers€2,962 EUR to €5,765 EUR

A
Cheapest Retailer
-
€2,962 EUR
$3,322 USD
A
Retailer 2
-
€2,982 EUR
$3,345 USD
View
A
Retailer 3
-
€3,054 EUR
$3,425 USD
View
Final sale: no returns
A
Retailer 4
-
€3,174 EUR
$3,560 USD
View
A
Retailer 5
-
€3,184 EUR
£2,812 GBP
View
A
Retailer 6
-
€3,309 EUR
$3,711 USD
View
A
Retailer 7
-
€3,309 EUR
$3,711 USD
View
A
Retailer 8
-
€3,409 EUR
£3,010 GBP
View
A
Retailer 9
-
€3,436 EUR
$3,854 USD
View
A
Retailer 10
-
€3,439 EUR
$3,857 USD
View
Retailer 11
-
€3,720 EUR
A$6,419 AUD
View
Price last confirmed 24 days ago
B+
Retailer 12
-
€3,818 EUR
$4,282 USD
View
B+
Retailer 13
-
€3,858 EUR
View
B+
Retailer 14
-
€4,067 EUR
ZAR 73,698 ZAR
View
B
Retailer 15
-
€5,534 EUR
£4,887 GBP
View
Most Expensive
B
NZ Jewellers
af681540-d975-4968-b9cb-2aa49efd98e6 · Oct 30
€5,765 EUR
$6,466 USD
View
15 more retailers have this diamond
Prices start from €2,962 EURSave up to €2,803 EUR

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
1.31ct Round
€2,962 EUR