Marquise|Natural|IGI

1.01ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 803629020

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 803629020

Diamond specifications and retailer prices

From €1,833 EUR
$2,056 USD
As of October 31, 2026
Save €1,722 EUR (48%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,371 EUR at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.01ct natural marquise diamond

This 1.01ct 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 803629020. Listed at 18 retailers as of October 31, 2026, with a 94% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 803629020
Dimensions9.75 × 5.17 × 3.34 mm
L/W Ratio1.89
Girdle conditionFaceted
Top View
9.75 mm5.17 mm1.01 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629020
Side View
Table 60.0%Crown 39.2°Girdle: STK-THKPavilion 40.9°Culet: NoneDepth 64.6%

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 31
Current: €3,555 EUR|Low: €1,833 EUR|High: €3,707 EUR|Avg: €2,427 EUR|-4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 11€1,833 EUR
Retailer 3€1,872 EUR
Retailer 9€1,890 EUR
Retailer 5€1,979 EUR
Retailer 10€1,982 EUR
Retailer 4€2,091 EUR
Retailer 12€2,134 EUR
Retailer 8€2,153 EUR
Retailer 7€2,247 EUR
Retailer 2€2,494 EUR
Retailer 6€2,533 EUR
Retailer 1€3,555 EUR

36 data points across 12 retailers

18 retailers€1,833 EUR to €3,555 EUR

A
Cheapest Retailer
-
€1,833 EUR
$2,056 USD
A
Retailer 2
-
€1,872 EUR
$2,100 USD
View
Final sale: no returns
A
Retailer 3
-
€1,890 EUR
$2,120 USD
View
A
Retailer 4
-
€1,979 EUR
£1,748 GBP
View
B+
Retailer 5
-
€1,982 EUR
$2,223 USD
View
B+
Retailer 6
-
€2,091 EUR
$2,345 USD
View
Retailer 7
-
€2,091 EUR
$2,345 USD
View
Price last confirmed 32 days ago
Retailer 8
-
€2,091 EUR
$2,345 USD
View
Price last confirmed 17 days ago
B+
Retailer 9
-
€2,134 EUR
$2,394 USD
View
B+
Retailer 10
-
€2,153 EUR
$2,415 USD
View
Retailer 11
-
€2,187 EUR
$2,453 USD
View
Price last confirmed 32 days ago
B+
Retailer 12
-
€2,247 EUR
£1,984 GBP
View
Retailer 13
-
€2,413 EUR
$2,706 USD
View
Price last confirmed 47 days ago
Retailer 14
-
€2,413 EUR
$2,706 USD
View
Price last confirmed 34 days ago
B+
Retailer 15
-
€2,494 EUR
ZAR 45,193 ZAR
View
B+
Retailer 16
-
€2,533 EUR
View
B
Retailer 17
-
€3,555 EUR
£3,140 GBP
View
Most Expensive
NZ Jewellers
f17c358e-89c4-4a37-a46d-cfeeec25a26e · Sep 29
€4,371 EUR
$4,903 USD
View
Price last confirmed 34 days ago
17 more retailers have this diamond
Prices start from €1,833 EURSave up to €1,722 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
1.01ct Marquise
€1,833 EUR