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1.03ct F SI1 Round Natural Diamond

EX • F/SI1 • IGI 801639013

Shape and cutting style on the report: Round brilliant

Certificate IGI 801639013

Diamond specifications and retailer prices

From €1,777 EUR
$1,985 USD
As of November 1, 2026
Save €2,458 EUR (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €4,235 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 801639013. Listed at 16 retailers as of October 30, 2026, with prices from €1,777 to €4,235, a €2,458 spread on the same certified stone. NZ Jewellers lists it at €4,235. 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

1.03
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.1°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 801639013
Dimensions6.40 × 6.43 × 4.04 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.40 mm6.43 mm1.03 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 801639013
Side View
Table 56.0%Crown 35.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.0%

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: €4,235 EUR|Low: €1,777 EUR|High: €4,235 EUR|Avg: €2,366 EUR
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
Retailer 16
November 2, 2026
Retailer 6€1,777 EUR
Retailer 5€1,830 EUR
Retailer 7€1,869 EUR
Retailer 3€1,916 EUR
Retailer 2€1,949 EUR
Retailer 4€2,026 EUR
Retailer 14€2,026 EUR
Retailer 15€2,032 EUR
Retailer 16€2,119 EUR
Retailer 13€2,150 EUR
Retailer 9€2,248 EUR
Retailer 8€2,337 EUR
Retailer 12€2,490 EUR
Retailer 10€2,519 EUR
Retailer 11€3,549 EUR
NZ Jewellers€4,235 EUR

8 data points across 16 retailers

16 retailers€1,777 EUR to €4,235 EUR

A
Cheapest Retailer
-
€1,777 EUR
$1,985 USD
A
Retailer 2
-
€1,830 EUR
$2,044 USD
View
A
Retailer 3
-
€1,869 EUR
$2,088 USD
View
Final sale: no returns
A
Retailer 4
-
€1,916 EUR
$2,141 USD
View
A
Retailer 5
-
€1,949 EUR
£1,714 GBP
View
A
Retailer 6
-
€2,026 EUR
$2,263 USD
View
A
Retailer 7
-
€2,026 EUR
$2,263 USD
View
A
Retailer 8
-
€2,032 EUR
$2,270 USD
View
A
Retailer 9
-
€2,119 EUR
$2,367 USD
View
A
Retailer 10
-
€2,150 EUR
$2,402 USD
View
A
Retailer 11
-
€2,248 EUR
£1,978 GBP
View
B+
Retailer 12
-
€2,337 EUR
$2,611 USD
View
B+
Retailer 13
-
€2,490 EUR
ZAR 44,933 ZAR
View
B+
Retailer 14
-
€2,519 EUR
View
B+
Retailer 15
-
€3,549 EUR
£3,122 GBP
View
Most Expensive
B
NZ Jewellers
e1337ce9-913f-49c0-85d2-36b6ab1b47f3 · Oct 30
€4,235 EUR
$4,731 USD
View
15 more retailers have this diamond
Prices start from €1,777 EURSave up to €2,458 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
1.03ct Round
€1,777 EUR