Round|Natural|GIA

1.40ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2558103659

Certificate GIA 2558103659

Diamond specifications and retailer prices

From €1,471 EUR
As of November 6, 2026
Save €2,711 EUR (65%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,351 EUR at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.4ct natural round diamond

This 1.4ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2558103659. Listed at 14 retailers as of November 5, 2026, with a 184% 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

1.40
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2558103659
Dimensions7.12 × 7.06 × 4.45 mm
L/W Ratio1.01
Top View
7.12 mm7.06 mm1.40 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2558103659
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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 6
Current: €4,182 EUR|Low: €1,459 EUR|High: €4,351 EUR|Avg: €2,303 EUR|-3.9%
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 6, 2026
Retailer 10€1,471 EUR
Retailer 12€1,626 EUR
Retailer 8€1,847 EUR
Retailer 2€1,967 EUR
Retailer 3€2,009 EUR
Retailer 13€2,026 EUR
Retailer 11€2,081 EUR
Retailer 4€2,147 EUR
Retailer 7€2,198 EUR
Retailer 5€2,441 EUR
Retailer 6€2,441 EUR
Retailer 9€2,986 EUR
NZ Jewellers€4,182 EUR

39 data points across 13 retailers

14 retailers€1,471 EUR to €4,182 EUR

A
Cheapest Retailer
-
€1,471 EUR
Retailer 2
-
€1,626 EUR
View
Price last confirmed 16 days ago
A
Retailer 3
-
€1,847 EUR
View
Final sale: no returns
B+
Retailer 4
-
€1,967 EUR
View
B+
Retailer 5
-
€2,009 EUR
View
B+
Retailer 6
-
€2,026 EUR
View
B+
Retailer 7
-
€2,071 EUR
View
B+
Retailer 8
-
€2,081 EUR
View
B+
Retailer 9
-
€2,147 EUR
View
B+
Retailer 10
-
€2,198 EUR
View
B
Retailer 11
-
€2,441 EUR
View
B
Retailer 12
-
€2,986 EUR
View
B
Retailer 13
-
€4,182 EUR
View
Most Expensive
NZ Jewellers
24342ae1-9916-4907-a630-cfa04c6aec93 · Sep 25
€4,351 EUR
$4,884 USD
View
Price last confirmed 41 days ago
13 more retailers have this diamond
Prices start from €1,471 EURSave up to €2,711 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
1.40ct Round
€1,471 EUR