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Round|Natural|GIA

1.30ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 5533156164

Certificate GIA 5533156164

Diamond specifications and retailer prices

From £3,425 GBP
$4,561 USD
As of October 29, 2026
Save £4,235 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £7,660 GBP at NZ Jewellers · As of October 30, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5533156164. Listed at 19 retailers as of October 29, 2026, with prices from £3,425 to £7,660, a £4,235 spread on the same certified stone. NZ Jewellers lists it at £7,660. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5533156164
Dimensions6.95 × 6.91 × 4.35 mm
L/W Ratio1.01
Top View
6.95 mm6.91 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5533156164
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

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: Oct 29
Current: £7,660 GBP|Low: £3,351 GBP|High: £7,660 GBP|Avg: £4,803 GBP
NZ Jewellers
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
October 30, 2026
Retailer 3£3,425 GBP
Retailer 10£3,552 GBP
Retailer 12£3,686 GBP
Retailer 5£4,150 GBP
Retailer 6£4,150 GBP
Retailer 14£4,150 GBP
Retailer 7£4,385 GBP
Retailer 15£4,391 GBP
Retailer 2£4,407 GBP
Retailer 13£4,460 GBP
Retailer 4£4,788 GBP
Retailer 8£4,788 GBP
Retailer 11£6,701 GBP
Retailer 9£6,784 GBP
NZ Jewellers£7,660 GBP

42 data points across 15 retailers

19 retailers£3,425 GBP to £7,660 GBP

A
Cheapest Retailer
-
£3,425 GBP
$4,561 USD
A
Retailer 2
-
£3,552 GBP
$4,730 USD
View
A
Retailer 3
-
£3,552 GBP
$4,730 USD
View
A
Retailer 4
-
£3,653 GBP
$4,865 USD
View
A
Retailer 5
-
£3,686 GBP
$4,908 USD
View
Final sale: no returns
B+
Retailer 6
-
£4,150 GBP
$5,526 USD
View
B+
Retailer 7
-
£4,150 GBP
$5,526 USD
View
B+
Retailer 8
-
£4,385 GBP
$5,839 USD
View
B+
Retailer 9
-
£4,391 GBP
$5,848 USD
View
B+
Retailer 10
-
£4,407 GBP
View
Retailer 11
-
£4,460 GBP
View
Price last confirmed 30 days ago
B+
Retailer 12
-
£4,678 GBP
$6,230 USD
View
B+
Retailer 13
-
£4,678 GBP
$6,230 USD
View
B+
Retailer 14
-
£4,788 GBP
$6,376 USD
View
B+
Retailer 15
-
£4,788 GBP
€6,073 EUR
View
B+
Retailer 16
-
£4,836 GBP
$6,440 USD
View
B
Retailer 17
-
£6,701 GBP
$8,923 USD
View
B
Retailer 18
-
£6,784 GBP
View
Most Expensive
B
NZ Jewellers
1e68a94e-757c-4a76-99f5-a08284cf5bfd · Oct 30
£7,660 GBP
$10,201 USD
View
18 more retailers have this diamond
Prices start from £3,425 GBPSave up to £4,235 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
£3,425 GBP