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Round|Natural|GIA

1.30ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7558130488

Certificate GIA 7558130488

Diamond specifications and retailer prices

From £3,287 GBP
As of November 4, 2026
Save £3,323 GBP (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,960 GBP at NZ Jewellers · As of September 10, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7558130488. Listed at 16 retailers as of November 4, 2026, with a 101% 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 7558130488
Dimensions6.92 × 6.97 × 4.39 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Knot, Feather, Needle, Indented Natural
Top View
6.92 mm6.97 mm1.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7558130488
Side View
Table 58.0%Crown 33°Girdle: Slightly ThickPavilion 41.8°Culet: NoneDepth 63.2%

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 4
Current: £4,469 GBP|Low: £3,287 GBP|High: £6,971 GBP|Avg: £4,365 GBP|+2.1%
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
November 6, 2026
Retailer 3£3,287 GBP
Retailer 7£3,534 GBP
Retailer 16£3,545 GBP
Retailer 5£3,734 GBP
Retailer 6£3,770 GBP
Retailer 12£3,784 GBP
Retailer 8£3,802 GBP
Retailer 13£3,960 GBP
Retailer 9£3,996 GBP
Retailer 15£4,168 GBP
Retailer 14£4,400 GBP
Retailer 1£4,469 GBP
Retailer 2£4,592 GBP
Retailer 11£5,115 GBP
Retailer 4£6,087 GBP
Retailer 10£6,610 GBP

38 data points across 16 retailers

16 retailers£3,287 GBP to £6,610 GBP

A
Cheapest Retailer
-
£3,287 GBP
B+
Retailer 2
-
£3,545 GBP
View
B+
Retailer 3
-
£3,734 GBP
View
Retailer 4
-
£3,770 GBP
View
Price last confirmed 56 days ago
B+
Retailer 5
-
£3,784 GBP
View
B+
Retailer 6
-
£3,960 GBP
View
B+
Retailer 7
-
£3,996 GBP
View
Retailer 8
-
£4,168 GBP
View
Price last confirmed 28 days ago
Retailer 9
-
£4,350 GBP
View
Price last confirmed 60 days ago
B
Retailer 10
-
£4,400 GBP
View
B+
Retailer 11
-
£4,469 GBP
View
Retailer 12
-
£4,592 GBP
View
Price last confirmed 14 days ago
B
Retailer 13
-
£5,115 GBP
View
B
Retailer 14
-
£6,087 GBP
View
B
Retailer 15
-
£6,610 GBP
View
Most Expensive
NZ Jewellers
ace354a6-b53f-42f0-9e5d-5103f7c77a96 · Sep 10
£6,960 GBP
$9,316 USD
View
Price last confirmed 57 days ago
15 more retailers have this diamond
Prices start from £3,287 GBPSave up to £3,323 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
£3,287 GBP