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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 £2,572 GBP
$3,451 USD
As of November 1, 2026
Save £2,520 GBP (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £5,092 GBP 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 £2,572 to £5,092, a £2,520 spread on the same certified stone. NZ Jewellers lists it at £5,092. 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
Colour
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: £2,812 GBP|Low: £2,473 GBP|High: £4,947 GBP|Avg: £3,168 GBP|-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£2,572 GBP
Retailer 2£2,652 GBP
Retailer 7£2,697 GBP
Retailer 9£2,791 GBP
Retailer 1£2,812 GBP
Retailer 8£3,134 GBP
Retailer 4£3,293 GBP
Retailer 6£3,345 GBP
Retailer 5£3,592 GBP
Retailer 3£4,888 GBP

45 data points across 10 retailers

14 retailers£2,572 GBP to £5,092 GBP

B+
Cheapest Retailer
-
£2,572 GBP
$3,451 USD
B+
Retailer 2
-
£2,652 GBP
$3,559 USD
View
B+
Retailer 3
-
£2,697 GBP
$3,619 USD
View
Final sale: no returns
B+
Retailer 4
-
£2,791 GBP
$3,745 USD
View
B+
Retailer 5
-
£2,812 GBP
View
B+
Retailer 6
-
£2,923 GBP
$3,922 USD
View
B+
Retailer 7
-
£2,923 GBP
$3,922 USD
View
Retailer 8
-
£3,134 GBP
A$6,470 AUD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
£3,293 GBP
€4,209 EUR
View
B+
Retailer 10
-
£3,345 GBP
View
B
Retailer 11
-
£3,372 GBP
$4,525 USD
View
B
Retailer 12
-
£3,592 GBP
ZAR 77,882 ZAR
View
B
Retailer 13
-
£4,888 GBP
View
Most Expensive
B
NZ Jewellers
d7a31d5f-94ce-4b5e-be25-37c40f38f9f7 · Oct 30
£5,092 GBP
$6,833 USD
View
13 more retailers have this diamond
Prices start from £2,572 GBPSave up to £2,520 GBP

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
£2,572 GBP