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Round|Natural|GIA

1.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5242048140

Certificate GIA 5242048140

Diamond specifications and retailer prices

From €2,973 EUR
$3,322 USD
As of October 30, 2026
Save €2,814 EUR (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €5,788 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 €2,973 to €5,788, a €2,814 spread on the same certified stone. NZ Jewellers lists it at €5,788. 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
Color
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: Oct 30
Current: €5,788 EUR|Low: €2,973 EUR|High: €5,931 EUR|Avg: €3,720 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 1, 2026
Retailer 7€2,973 EUR
Retailer 2€2,994 EUR
Retailer 5€3,066 EUR
Retailer 15€3,187 EUR
Retailer 8€3,196 EUR
Retailer 4€3,322 EUR
Retailer 14€3,322 EUR
Retailer 3€3,450 EUR
Retailer 11€3,451 EUR
Retailer 13€3,453 EUR
Retailer 6€3,833 EUR
Retailer 10€3,873 EUR
Retailer 12€4,083 EUR
Retailer 9€5,555 EUR
NZ Jewellers€5,788 EUR

21 data points across 15 retailers

16 retailers€2,973 EUR to €5,788 EUR

A
Cheapest Retailer
-
€2,973 EUR
$3,322 USD
A
Retailer 2
-
€2,994 EUR
$3,345 USD
View
A
Retailer 3
-
€3,066 EUR
$3,425 USD
View
Final sale: no returns
A
Retailer 4
-
€3,187 EUR
$3,560 USD
View
A
Retailer 5
-
€3,196 EUR
£2,812 GBP
View
A
Retailer 6
-
€3,322 EUR
$3,711 USD
View
A
Retailer 7
-
€3,322 EUR
$3,711 USD
View
A
Retailer 8
-
€3,450 EUR
$3,854 USD
View
A
Retailer 9
-
€3,451 EUR
£3,036 GBP
View
A
Retailer 10
-
€3,453 EUR
$3,857 USD
View
Retailer 11
-
€3,735 EUR
A$6,419 AUD
View
Price last confirmed 23 days ago
B+
Retailer 12
-
€3,833 EUR
$4,282 USD
View
B+
Retailer 13
-
€3,873 EUR
View
B+
Retailer 14
-
€4,083 EUR
ZAR 73,698 ZAR
View
B
Retailer 15
-
€5,555 EUR
£4,887 GBP
View
Most Expensive
B
NZ Jewellers
af681540-d975-4968-b9cb-2aa49efd98e6 · Oct 30
€5,788 EUR
$6,466 USD
View
15 more retailers have this diamond
Prices start from €2,973 EURSave up to €2,814 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
€2,973 EUR