Round|Natural|GIA

1.30ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 1553741939

Certificate GIA 1553741939

Diamond specifications and retailer prices

From £2,846 GBP
As of November 5, 2026
Save £1,176 GBP (29%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,253 GBP at NZ Jewellers · As of October 3, 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 1553741939. Listed at 17 retailers as of November 5, 2026, with a 41% 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
SymmetryExcellent
FluorescenceNone
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1553741939
Dimensions6.91 × 6.96 × 4.32 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.91 mm6.96 mm1.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553741939
Side View
Table 57.0%CrownGirdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £4,022 GBP|Low: £2,610 GBP|High: £5,963 GBP|Avg: £3,717 GBP|+9.7%
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
November 6, 2026
Retailer 5£2,610 GBP
Retailer 10£2,846 GBP
Retailer 13£2,953 GBP
Retailer 2£2,960 GBP
Retailer 15£3,175 GBP
Retailer 6£3,349 GBP
Retailer 7£3,529 GBP
Retailer 12£3,773 GBP
Retailer 14£3,773 GBP
Retailer 4£3,900 GBP
Retailer 8£3,922 GBP
Retailer 1£4,022 GBP
Retailer 3£4,090 GBP
Retailer 9£4,471 GBP
Retailer 11£5,931 GBP

35 data points across 15 retailers

17 retailers£2,846 GBP to £4,022 GBP

Retailer 1
-
£2,610 GBP
Price last confirmed 29 days ago
A
Retailer 2
-
£2,846 GBP
View
Retailer 3
-
£2,953 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
-
£2,960 GBP
View
Retailer 5
-
£3,175 GBP
View
Price last confirmed 14 days ago
Retailer 6
-
£3,349 GBP
View
Price last confirmed 30 days ago
B+
Retailer 7
-
£3,529 GBP
View
Retailer 8
-
£3,589 GBP
View
Price last confirmed 29 days ago
Retailer 9
-
£3,616 GBP
View
Price last confirmed 38 days ago
Retailer 10
-
£3,773 GBP
View
Price last confirmed 11 days ago
Retailer 11
-
£3,900 GBP
View
Price last confirmed 11 days ago
B+
Retailer 12
-
£3,922 GBP
View
B+
Retailer 13
-
£4,022 GBP
View
Retailer 14
-
£4,090 GBP
View
Price last confirmed 23 days ago
Retailer 15
-
£4,471 GBP
View
Price last confirmed 15 days ago
Retailer 16
-
£5,931 GBP
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
d80baec7-4a94-43f8-a93a-a290ef5acf79 · Oct 3
£6,253 GBP
$8,369 USD
View
Price last confirmed 34 days ago
16 more retailers have this diamond
Prices start from £2,846 GBPSave up to £1,176 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
£2,846 GBP