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Round|Natural|IGI

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 $1,985 USD
As of November 1, 2026
Save $2,746 USD (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,731 USD 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 $1,985 to $4,731, a $2,746 spread on the same certified stone. NZ Jewellers lists it at $4,731. 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: $4,731 USD|Low: $1,985 USD|High: $4,731 USD|Avg: $2,643 USD
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$1,985 USD
Retailer 5$2,044 USD
Retailer 7$2,088 USD
Retailer 3$2,141 USD
Retailer 2$2,177 USD
Retailer 4$2,263 USD
Retailer 14$2,263 USD
Retailer 15$2,270 USD
Retailer 16$2,367 USD
Retailer 13$2,402 USD
Retailer 9$2,512 USD
Retailer 8$2,611 USD
Retailer 12$2,781 USD
Retailer 10$2,814 USD
Retailer 11$3,965 USD
NZ Jewellers$4,731 USD

8 data points across 16 retailers

16 retailers$1,985 USD to $4,731 USD

A
Cheapest Retailer
-
$1,985 USD
A
Retailer 2
-
$2,044 USD
View
A
Retailer 3
-
$2,088 USD
View
Final sale: no returns
A
Retailer 4
-
$2,141 USD
View
A
Retailer 5
-
$2,177 USD
£1,714 GBP
View
A
Retailer 6
-
$2,263 USD
View
A
Retailer 7
-
$2,263 USD
View
A
Retailer 8
-
$2,270 USD
View
A
Retailer 9
-
$2,367 USD
View
A
Retailer 10
-
$2,402 USD
View
A
Retailer 11
-
$2,512 USD
£1,978 GBP
View
B+
Retailer 12
-
$2,611 USD
View
B+
Retailer 13
-
$2,781 USD
ZAR 44,933 ZAR
View
B+
Retailer 14
-
$2,814 USD
€2,680 EUR
View
B+
Retailer 15
-
$3,965 USD
£3,122 GBP
View
Most Expensive
B
NZ Jewellers
e1337ce9-913f-49c0-85d2-36b6ab1b47f3 · Oct 30
$4,731 USD
View
15 more retailers have this diamond
Prices start from $1,985 USDSave up to $2,746 USD

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
$1,985 USD