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Round|Natural|GIA

1.03ct H VS1 Round Natural Diamond

EX • H/VS1 • GIA 1488753280

Certificate GIA 1488753280

Diamond specifications and retailer prices

From £3,142 GBP
As of November 4, 2026
Save £3,509 GBP (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £7,683 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1488753280. Listed at 19 retailers as of November 4, 2026, with a 112% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1488753280
Dimensions6.45 × 6.42 × 4.02 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.45 mm6.42 mm1.03 ctH / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1488753280
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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 4
Current: £4,852 GBP|Low: £3,187 GBP|High: £6,411 GBP|Avg: £4,319 GBP|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6£3,187 GBP
Retailer 7£3,326 GBP
Retailer 9£3,603 GBP
Retailer 3£3,817 GBP
Retailer 8£4,008 GBP
Retailer 2£4,341 GBP
Retailer 5£4,485 GBP
Retailer 1£4,852 GBP
Retailer 4£6,317 GBP

43 data points across 9 retailers

19 retailers£3,142 GBP to £6,651 GBP

B+
Cheapest Retailer
-
£3,142 GBP
B+
Retailer 2
-
£3,187 GBP
View
B+
Retailer 3
-
£3,326 GBP
View
Final sale: no returns
B+
Retailer 4
-
£3,395 GBP
View
B+
Retailer 5
-
£3,603 GBP
View
Retailer 6
-
£3,603 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£3,603 GBP
View
B+
Retailer 8
-
£3,817 GBP
View
Retailer 9
-
£4,008 GBP
View
Price last confirmed 28 days ago
B
Retailer 10
-
£4,084 GBP
View
B
Retailer 11
-
£4,157 GBP
View
B
Retailer 12
-
£4,341 GBP
View
Retailer 13
-
£4,389 GBP
View
Price last confirmed 14 days ago
B
Retailer 14
-
£4,485 GBP
View
B
Retailer 15
-
£4,619 GBP
View
B
Retailer 16
-
£4,852 GBP
View
B
Retailer 17
-
£6,317 GBP
View
B
Retailer 18
-
£6,651 GBP
View
Most Expensive
Diamond Quarter
1.03VS1H14803C03N · Nov 5
£7,683 GBP
View
Price under review
18 more retailers have this diamond
Prices start from £3,142 GBPSave up to £3,509 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
£3,142 GBP