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Round|Natural|GIA

1.03ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6532107777

Certificate GIA 6532107777

Diamond specifications and retailer prices

From £1,720 GBP
HK$18,000 HKD
As of November 1, 2026
Save £2,161 GBP (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,187 GBP at NZ Jewellers · As of September 19, 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 6532107777. Listed at 20 retailers as of October 29, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6532107777
Dimensions6.43 × 6.39 × 4.01 mm
L/W Ratio1.01
Top View
6.43 mm6.39 mm1.03 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532107777
Side View
Table 58.0%Crown 35.5°Girdle: STK-STKPavilion 41°Culet: NoneDepth 62.5%

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: £2,221 GBP|Low: £1,710 GBP|High: £3,906 GBP|Avg: £2,391 GBP|-1.2%
Retailer 1
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
Retailer 17
Retailer 18
November 2, 2026
Retailer 14£1,720 GBP
Retailer 9£2,067 GBP
Retailer 18£2,067 GBP
Retailer 8£2,112 GBP
Retailer 16£2,112 GBP
Retailer 2£2,130 GBP
Retailer 1£2,221 GBP
Retailer 6£2,308 GBP
Retailer 7£2,308 GBP
Retailer 11£2,377 GBP
Retailer 10£2,394 GBP
Retailer 17£2,396 GBP
Retailer 4£2,415 GBP
Retailer 3£2,466 GBP
Retailer 5£2,663 GBP
Retailer 12£2,690 GBP
Retailer 13£2,837 GBP
Retailer 15£3,880 GBP

31 data points across 18 retailers

20 retailers£1,720 GBP to £3,880 GBP

A
Cheapest Retailer
-
£1,720 GBP
HK$18,000 HKD
A
Retailer 2
-
£2,067 GBP
$2,769 USD
View
A
Retailer 3
-
£2,067 GBP
$2,770 USD
View
A
Retailer 4
-
£2,112 GBP
$2,830 USD
View
B+
Retailer 5
-
£2,112 GBP
$2,830 USD
View
B+
Retailer 6
-
£2,130 GBP
$2,854 USD
View
Final sale: no returns
B+
Retailer 7
-
£2,221 GBP
View
Retailer 8
-
£2,308 GBP
$3,092 USD
View
Price last confirmed 17 days ago
Retailer 9
-
£2,308 GBP
$3,092 USD
View
Price last confirmed 11 days ago
B+
Retailer 10
-
£2,377 GBP
View
B+
Retailer 11
-
£2,394 GBP
SGD 4,335 SGD
View
Retailer 12
-
£2,396 GBP
$3,211 USD
View
Price last confirmed 17 days ago
B+
Retailer 13
-
£2,415 GBP
$3,235 USD
View
Retailer 14
-
£2,466 GBP
A$5,083 AUD
View
Price last confirmed 25 days ago
Retailer 15
-
£2,663 GBP
$3,568 USD
View
Price last confirmed 12 days ago
B+
Retailer 16
-
£2,690 GBP
€3,433 EUR
View
Retailer 17
-
£2,773 GBP
$3,715 USD
View
Price last confirmed 41 days ago
B+
Retailer 18
-
£2,837 GBP
ZAR 61,407 ZAR
View
B
Retailer 19
-
£3,880 GBP
View
Most Expensive
NZ Jewellers
bd129b53-c664-4686-b073-120bdc5baef3 · Sep 19
£4,187 GBP
$5,610 USD
View
Price last confirmed 43 days ago
19 more retailers have this diamond
Prices start from £1,720 GBPSave up to £2,161 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.

A
1.03ct Round
£1,720 GBP