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Round|Natural|GIA

1.30ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7493452927

Certificate GIA 7493452927

Diamond specifications and retailer prices

From £2,146 GBP
As of November 6, 2026
Save £3,397 GBP (61%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,543 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 top-tier cut grade and certified by GIA 7493452927. Listed at 18 retailers as of November 5, 2026, with prices from £2,146 to £5,543, a £3,397 spread on the same certified stone. Diamond Quarter lists it at £5,543. 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

1.30
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7493452927
Dimensions6.98 × 6.93 × 4.35 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Top View
6.98 mm6.93 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7493452927
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°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 6
Current: £2,313 GBP|Low: £2,174 GBP|High: £4,085 GBP|Avg: £2,666 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7£2,174 GBP
Retailer 8£2,231 GBP
Retailer 1£2,313 GBP
Retailer 2£2,486 GBP
Retailer 9£2,591 GBP
Retailer 4£2,794 GBP
Retailer 3£2,808 GBP
Retailer 5£2,950 GBP
Retailer 6£4,031 GBP

36 data points across 9 retailers

18 retailers£2,146 GBP to £5,543 GBP

A
Cheapest Retailer
-
£2,146 GBP
A
Retailer 2
-
£2,174 GBP
View
A
Retailer 3
-
£2,231 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,313 GBP
View
A
Retailer 5
-
£2,342 GBP
View
Retailer 6
-
£2,417 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£2,417 GBP
View
A
Retailer 8
-
£2,486 GBP
View
A
Retailer 9
-
£2,510 GBP
View
Retailer 10
-
£2,591 GBP
View
Price last confirmed 33 days ago
A
Retailer 11
-
£2,690 GBP
View
B+
Retailer 12
-
£2,789 GBP
View
A
Retailer 13
-
£2,794 GBP
View
A
Retailer 14
-
£2,808 GBP
View
B+
Retailer 15
-
£2,950 GBP
View
B+
Retailer 16
-
£4,031 GBP
View
B
Retailer 17
-
£4,211 GBP
View
Most Expensive
B
Diamond Quarter
1.3SI1H74271285N · Nov 5
£5,543 GBP
View
17 more retailers have this diamond
Prices start from £2,146 GBPSave up to £3,397 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
£2,146 GBP