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Round|Natural|GIA

1.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7493732351

Shape and cutting style on the report: Round brilliant

Certificate GIA 7493732351

Diamond specifications and retailer prices

From £1,673 GBP
As of November 4, 2026
Save £3,002 GBP (64%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,675 GBP at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7493732351. Listed at 14 retailers as of November 4, 2026, with prices from £1,673 to £4,675, a £3,002 spread on the same certified stone. NZ Jewellers lists it at £4,675. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7493732351
Dimensions7.04 × 7.00 × 4.28 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
7.04 mm7.00 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7493732351
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

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 4
Current: £4,675 GBP|Low: £1,655 GBP|High: £4,675 GBP|Avg: £2,474 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
November 6, 2026
Retailer 11£1,673 GBP
Retailer 12£1,814 GBP
Retailer 14£1,903 GBP
Retailer 13£1,991 GBP
Retailer 4£2,025 GBP
Retailer 6£2,025 GBP
Retailer 3£2,103 GBP
Retailer 15£2,177 GBP
Retailer 5£2,337 GBP
Retailer 2£2,353 GBP
Retailer 10£2,375 GBP
Retailer 7£2,596 GBP
Retailer 8£2,729 GBP
Retailer 9£3,729 GBP
NZ Jewellers£4,675 GBP

43 data points across 15 retailers

14 retailers£1,673 GBP to £4,675 GBP

A
Cheapest Retailer
-
£1,673 GBP
A
Retailer 2
-
£1,814 GBP
View
B+
Retailer 3
-
£1,903 GBP
View
B+
Retailer 4
-
£1,991 GBP
View
B+
Retailer 5
-
£2,025 GBP
View
Retailer 6
-
£2,025 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£2,103 GBP
View
B+
Retailer 8
-
£2,337 GBP
View
B+
Retailer 9
-
£2,353 GBP
View
B+
Retailer 10
-
£2,375 GBP
View
Retailer 11
-
£2,596 GBP
View
Price last confirmed 14 days ago
B+
Retailer 12
-
£2,729 GBP
View
B
Retailer 13
-
£3,729 GBP
View
Most Expensive
B
NZ Jewellers
d9853eb9-a014-4d35-b548-87f36da0af22 · Nov 5
£4,675 GBP
$6,292 USD
View
13 more retailers have this diamond
Prices start from £1,673 GBPSave up to £3,002 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
£1,673 GBP