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Round|Natural|GIA

1.03ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 3555313511

Certificate GIA 3555313511

Diamond specifications and retailer prices

From $3,451 USD
As of November 1, 2026
Save $3,382 USD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,833 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 GIA 3555313511. Listed at 14 retailers as of October 30, 2026, with prices from $3,451 to $6,833, a $3,382 spread on the same certified stone. NZ Jewellers lists it at $6,833. 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
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 3555313511
Dimensions6.44 × 6.48 × 4.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.44 mm6.48 mm1.03 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555313511
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,773 USD|Low: $3,318 USD|High: $6,638 USD|Avg: $4,251 USD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10$3,451 USD
Retailer 2$3,559 USD
Retailer 7$3,619 USD
Retailer 9$3,745 USD
Retailer 1$3,773 USD
Retailer 8$4,205 USD
Retailer 4$4,419 USD
Retailer 6$4,489 USD
Retailer 5$4,821 USD
Retailer 3$6,560 USD

45 data points across 10 retailers

14 retailers$3,451 USD to $6,833 USD

B+
Cheapest Retailer
-
$3,451 USD
B+
Retailer 2
-
$3,559 USD
View
B+
Retailer 3
-
$3,619 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,745 USD
View
B+
Retailer 5
-
$3,773 USD
£2,971 GBP
View
B+
Retailer 6
-
$3,922 USD
View
B+
Retailer 7
-
$3,922 USD
View
Retailer 8
-
$4,205 USD
A$6,470 AUD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$4,419 USD
€4,209 EUR
View
B+
Retailer 10
-
$4,489 USD
£3,535 GBP
View
B
Retailer 11
-
$4,525 USD
View
B
Retailer 12
-
$4,821 USD
ZAR 77,882 ZAR
View
B
Retailer 13
-
$6,560 USD
£5,165 GBP
View
Most Expensive
B
NZ Jewellers
d7a31d5f-94ce-4b5e-be25-37c40f38f9f7 · Oct 30
$6,833 USD
View
13 more retailers have this diamond
Prices start from $3,451 USDSave up to $3,382 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.

B+
1.03ct Round
$3,451 USD