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Round|Natural|GIA

1.30ct H SI1 Round Natural Diamond

VG • H/SI1 • GIA 6422450481

Certificate GIA 6422450481

Diamond specifications and retailer prices

From £2,467 GBP
As of November 6, 2026
Save £4,645 GBP (65%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £7,112 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6422450481. Listed at 21 retailers as of November 5, 2026, with prices from £2,467 to £7,112, a £4,645 spread on the same certified stone. Diamond Quarter lists it at £7,112. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.30
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6422450481
Dimensions7.00 × 6.93 × 4.25 mm
L/W Ratio1.01
Top View
7.00 mm6.93 mm1.30 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6422450481
Side View
Table 64.0%Crown 32.5°Girdle: STK-THKPavilion 41.6°Culet: NoneDepth 61.0%

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 6
Current: £3,169 GBP|Low: £2,448 GBP|High: £5,771 GBP|Avg: £3,392 GBP|-7.0%
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
Retailer 19
Retailer 20
November 6, 2026
Retailer 18£2,467 GBP
Retailer 9£2,542 GBP
Retailer 17£2,566 GBP
Retailer 8£2,770 GBP
Retailer 7£2,844 GBP
Retailer 2£2,846 GBP
Retailer 11£3,001 GBP
Retailer 20£3,001 GBP
Retailer 1£3,169 GBP
Retailer 12£3,334 GBP
Retailer 3£3,384 GBP
Retailer 19£3,384 GBP
Retailer 5£3,463 GBP
Retailer 4£3,496 GBP
Retailer 13£3,526 GBP
Retailer 15£3,720 GBP
Retailer 10£3,747 GBP
Retailer 14£4,041 GBP
Retailer 16£5,261 GBP
Retailer 6£5,771 GBP

33 data points across 20 retailers

21 retailers£2,467 GBP to £7,112 GBP

A
Cheapest Retailer
-
£2,467 GBP
A
Retailer 2
-
£2,542 GBP
View
A
Retailer 3
-
£2,566 GBP
View
B+
Retailer 4
-
£2,770 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,844 GBP
View
B+
Retailer 6
-
£2,846 GBP
View
B+
Retailer 7
-
£3,001 GBP
View
B+
Retailer 8
-
£3,001 GBP
View
B+
Retailer 9
-
£3,169 GBP
View
B+
Retailer 10
-
£3,334 GBP
View
B
Retailer 11
-
£3,372 GBP
View
B
Retailer 12
-
£3,384 GBP
View
B
Retailer 13
-
£3,384 GBP
View
B
Retailer 14
-
£3,463 GBP
View
B
Retailer 15
-
£3,496 GBP
View
Retailer 16
-
£3,526 GBP
View
Price last confirmed 28 days ago
B
Retailer 17
-
£3,720 GBP
View
B
Retailer 18
-
£4,041 GBP
View
B
Retailer 19
-
£5,261 GBP
View
C
Retailer 20
-
£5,771 GBP
View
Most Expensive
C
Diamond Quarter
1.3SI1H6481D415N · Nov 5
£7,112 GBP
View
20 more retailers have this diamond
Prices start from £2,467 GBPSave up to £4,645 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
1.30ct Round
£2,467 GBP