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Round|Natural|GIA

1.30ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1563102456

Certificate GIA 1563102456

Diamond specifications and retailer prices

From £2,359 GBP
As of November 6, 2026
Save £2,867 GBP (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £5,771 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

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 1563102456. Listed at 12 retailers as of November 4, 2026, with a 122% 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

1.30
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1563102456
Dimensions6.90 × 6.94 × 4.32 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural, Needle
Top View
6.90 mm6.94 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1563102456
Side View
Table 57.0%Crown 36°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: £2,359 GBP|Low: £2,343 GBP|High: £5,364 GBP|Avg: £3,207 GBP|-7.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1£2,359 GBP
Retailer 5£2,362 GBP
Retailer 7£2,893 GBP
Retailer 6£2,981 GBP
Retailer 8£2,982 GBP
Retailer 2£2,999 GBP
Retailer 4£3,349 GBP
Retailer 9£3,422 GBP
Retailer 3£5,227 GBP

35 data points across 9 retailers

12 retailers£2,359 GBP to £5,227 GBP

A
Cheapest Retailer
-
£2,359 GBP
A
Retailer 2
-
£2,362 GBP
View
B+
Retailer 3
-
£2,893 GBP
View
Final sale: no returns
B+
Retailer 4
-
£2,981 GBP
View
Retailer 5
-
£2,982 GBP
View
Price last confirmed 10 days ago
B+
Retailer 6
-
£2,999 GBP
View
B+
Retailer 7
-
£3,204 GBP
View
Retailer 8
-
£3,312 GBP
View
Price last confirmed 39 days ago
B+
Retailer 9
-
£3,349 GBP
View
Retailer 10
-
£3,422 GBP
View
Price last confirmed 28 days ago
B
Retailer 11
-
£5,227 GBP
View
Most Expensive
NZ Jewellers
b35137df-e50c-491b-a2c0-f61ffd5b4380 · Sep 28
£5,771 GBP
$7,724 USD
View
Price last confirmed 39 days ago
11 more retailers have this diamond
Prices start from £2,359 GBPSave up to £2,867 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
£2,359 GBP