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Round|Natural|GIA

1.30ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 7543911942

Certificate GIA 7543911942

Diamond specifications and retailer prices

From £1,655 GBP
As of November 6, 2026
Save £2,037 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,663 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7543911942. Listed at 19 retailers as of November 2, 2026, with a 123% 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7543911942
Dimensions6.97 × 7.00 × 4.36 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural, Needle
Top View
6.97 mm7.00 mm1.30 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7543911942
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°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: £1,713 GBP|Low: £1,655 GBP|High: £3,736 GBP|Avg: £2,316 GBP|-4.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 4£1,655 GBP
Retailer 1£1,713 GBP
Retailer 9£1,958 GBP
Retailer 8£2,003 GBP
Retailer 2£2,035 GBP
Retailer 5£2,048 GBP
Retailer 7£2,285 GBP
Retailer 6£2,296 GBP
Retailer 3£2,557 GBP
Retailer 10£2,575 GBP
Retailer 11£3,692 GBP

28 data points across 11 retailers

19 retailers£1,655 GBP to £3,692 GBP

A
Cheapest Retailer
-
£1,655 GBP
A
Retailer 2
-
£1,713 GBP
View
A
Retailer 3
-
£1,958 GBP
View
A
Retailer 4
-
£2,003 GBP
View
Final sale: no returns
A
Retailer 5
-
£2,035 GBP
View
A
Retailer 6
-
£2,048 GBP
View
A
Retailer 7
-
£2,080 GBP
View
Retailer 8
-
£2,207 GBP
View
Price last confirmed 17 days ago
Retailer 9
-
£2,207 GBP
View
Price last confirmed 21 days ago
Retailer 10
-
£2,230 GBP
View
Price last confirmed 39 days ago
A
Retailer 11
-
£2,244 GBP
View
A
Retailer 12
-
£2,285 GBP
View
A
Retailer 13
-
£2,296 GBP
View
Retailer 14
-
£2,316 GBP
View
Price last confirmed 38 days ago
B+
Retailer 15
-
£2,557 GBP
View
Retailer 16
-
£2,574 GBP
View
Price last confirmed 38 days ago
A
Retailer 17
-
£2,575 GBP
View
B
Retailer 18
-
£3,692 GBP
View
Most Expensive
NZ Jewellers
a1bf621d-fb83-4a27-815e-d3680ff2bb79 · Sep 28
£4,663 GBP
$6,276 USD
View
Price last confirmed 39 days ago
18 more retailers have this diamond
Prices start from £1,655 GBPSave up to £2,037 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
£1,655 GBP