CaratHunter
Plans
Round|Natural|GIA

1.30ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1558372388

Certificate GIA 1558372388

Diamond specifications and retailer prices

From £1,417 GBP
As of November 4, 2026
Save £2,473 GBP (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,890 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558372388. Listed at 15 retailers as of November 4, 2026, with prices from £1,417 to £3,890, a £2,473 spread on the same certified stone. NZ Jewellers lists it at £3,890. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1558372388
Dimensions6.92 × 6.95 × 4.32 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.92 mm6.95 mm1.30 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558372388
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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: £3,890 GBP|Low: £1,379 GBP|High: £3,912 GBP|Avg: £1,926 GBP|-0.6%
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 10£1,417 GBP
Retailer 11£1,471 GBP
Retailer 5£1,514 GBP
Retailer 14£1,523 GBP
Retailer 13£1,556 GBP
Retailer 15£1,559 GBP
Retailer 6£1,623 GBP
Retailer 7£1,658 GBP
Retailer 3£1,686 GBP
Retailer 9£1,764 GBP
Retailer 12£1,945 GBP
Retailer 2£1,957 GBP
Retailer 8£2,170 GBP
Retailer 4£3,206 GBP
NZ Jewellers£3,890 GBP

31 data points across 15 retailers

15 retailers£1,417 GBP to £3,890 GBP

A
Cheapest Retailer
-
£1,417 GBP
A
Retailer 2
-
£1,471 GBP
View
A
Retailer 3
-
£1,514 GBP
View
A
Retailer 4
-
£1,523 GBP
View
A
Retailer 5
-
£1,556 GBP
View
Final sale: no returns
A
Retailer 6
-
£1,559 GBP
View
A
Retailer 7
-
£1,623 GBP
View
Retailer 8
-
£1,658 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£1,686 GBP
View
A
Retailer 10
-
£1,764 GBP
View
B+
Retailer 11
-
£1,945 GBP
View
B+
Retailer 12
-
£1,957 GBP
View
B+
Retailer 13
-
£2,170 GBP
View
B
Retailer 14
-
£3,206 GBP
View
Most Expensive
B
NZ Jewellers
eb213151-6507-4408-8adc-17db97831ab7 · Nov 5
£3,890 GBP
$5,236 USD
View
14 more retailers have this diamond
Prices start from £1,417 GBPSave up to £2,473 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
£1,417 GBP