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Round|Natural|GIA

1.03ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6422256075

Certificate GIA 6422256075

Diamond specifications and retailer prices

From £1,582 GBP
As of October 31, 2026
Save £2,971 GBP (65%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,553 GBP at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6422256075. Listed at 16 retailers as of October 31, 2026, with prices from £1,582 to £4,553, a £2,971 spread on the same certified stone. NZ Jewellers lists it at £4,553. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6422256075
Dimensions6.46 × 6.42 × 4.05 mm
L/W Ratio1.01
Top View
6.46 mm6.42 mm1.03 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6422256075
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £2,217 GBP|Low: £1,516 GBP|High: £3,685 GBP|Avg: £2,203 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5£1,582 GBP
Retailer 6£1,597 GBP
Retailer 9£1,919 GBP
Retailer 7£2,010 GBP
Retailer 1£2,217 GBP
Retailer 8£2,262 GBP
Retailer 2£2,291 GBP
Retailer 4£2,457 GBP
Retailer 3£3,642 GBP

46 data points across 9 retailers

16 retailers£1,582 GBP to £4,553 GBP

A
Cheapest Retailer
-
£1,582 GBP
A
Retailer 2
-
£1,597 GBP
View
A
Retailer 3
-
£1,919 GBP
View
B+
Retailer 4
-
£2,010 GBP
View
Final sale: no returns
Retailer 5
-
£2,057 GBP
View
Price last confirmed 109 days ago
Retailer 6
-
£2,178 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£2,178 GBP
View
B+
Retailer 8
-
£2,217 GBP
View
B+
Retailer 9
-
£2,262 GBP
View
B+
Retailer 10
-
£2,291 GBP
View
B+
Retailer 11
-
£2,457 GBP
View
B+
Retailer 12
-
£2,513 GBP
View
B
Retailer 13
-
£3,245 GBP
View
B
Retailer 14
-
£3,642 GBP
View
B
Retailer 15
-
£4,157 GBP
View
Most Expensive
B
NZ Jewellers
9aab954b-e2da-437f-8635-efbf6fcb3273 · Nov 5
£4,553 GBP
$6,094 USD
View
15 more retailers have this diamond
Prices start from £1,582 GBPSave up to £2,971 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
£1,582 GBP