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Marquise|Natural|IGI

1.00ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 843628745

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 843628745

Diamond specifications and retailer prices

From €1,337 EUR
As of November 2, 2026
Save €2,198 EUR (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €3,535 EUR at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 843628745. Listed at 13 retailers as of November 2, 2026, with prices from €1,337 to €3,535, a €2,198 spread on the same certified stone. NZ Jewellers lists it at €3,535. 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

1.00
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle28.5°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 843628745
Dimensions10.75 × 5.25 × 2.98 mm
L/W Ratio2.05
Girdle conditionFaceted
Culet sizeMedium
Top View
10.75 mm5.25 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 843628745
Side View
Table 63.0%Crown 28.5°Girdle: MED-THKPavilion 41.2°Culet: MediumDepth 56.8%

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 2
Current: €3,535 EUR|Low: €1,337 EUR|High: €3,651 EUR|Avg: €1,760 EUR|-3.2%
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 3, 2026
Retailer 3€1,337 EUR
Retailer 13€1,344 EUR
Retailer 7€1,346 EUR
Retailer 5€1,449 EUR
Retailer 12€1,449 EUR
Retailer 11€1,479 EUR
Retailer 4€1,516 EUR
Retailer 2€1,651 EUR
Retailer 10€1,673 EUR
Retailer 8€1,769 EUR
Retailer 9€1,979 EUR
Retailer 6€2,539 EUR
NZ Jewellers€3,535 EUR

14 data points across 13 retailers

13 retailers€1,337 EUR to €3,535 EUR

A
Cheapest Retailer
-
€1,337 EUR
Final sale: no returns
A
Retailer 2
-
€1,344 EUR
View
A
Retailer 3
-
€1,346 EUR
View
A
Retailer 4
-
€1,449 EUR
View
A
Retailer 5
-
€1,449 EUR
View
A
Retailer 6
-
€1,479 EUR
View
A
Retailer 7
-
€1,516 EUR
View
A
Retailer 8
-
€1,651 EUR
View
B+
Retailer 9
-
€1,673 EUR
View
A
Retailer 10
-
€1,769 EUR
View
A
Retailer 11
-
€1,979 EUR
View
B+
Retailer 12
-
€2,539 EUR
View
Most Expensive
B
NZ Jewellers
dd248388-ee08-40d2-9639-c78f6ee0dd9a · Nov 3
€3,535 EUR
$3,952 USD
View
12 more retailers have this diamond
Prices start from €1,337 EURSave up to €2,198 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
1.00ct Marquise
€1,337 EUR