CaratHunter
Plans
Round|Natural|GIA

1.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7552962813

Certificate GIA 7552962813

Diamond specifications and retailer prices

From £1,502 GBP
As of November 4, 2026
Save £2,649 GBP (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,151 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 7552962813. Listed at 17 retailers as of November 4, 2026, with prices from £1,502 to £4,151, a £2,649 spread on the same certified stone. NZ Jewellers lists it at £4,151. 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
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7552962813
Dimensions6.89 × 6.94 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.89 mm6.94 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7552962813
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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: £4,151 GBP|Low: £1,255 GBP|High: £4,222 GBP|Avg: £1,965 GBP|+13.4%
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
Retailer 16
November 6, 2026
Retailer 5£1,502 GBP
Retailer 12£1,568 GBP
Retailer 6£1,625 GBP
Retailer 13£1,627 GBP
Retailer 4£1,660 GBP
Retailer 3£1,661 GBP
Retailer 14£1,670 GBP
Retailer 8£1,768 GBP
Retailer 7£1,799 GBP
Retailer 15£1,882 GBP
Retailer 16£2,076 GBP
Retailer 2£2,089 GBP
Retailer 9£2,317 GBP
Retailer 10£2,424 GBP
Retailer 11£3,469 GBP
NZ Jewellers£4,151 GBP

23 data points across 16 retailers

17 retailers£1,502 GBP to £4,151 GBP

A
Cheapest Retailer
-
£1,502 GBP
A
Retailer 2
-
£1,568 GBP
View
A
Retailer 3
-
£1,625 GBP
View
A
Retailer 4
-
£1,627 GBP
View
B+
Retailer 5
-
£1,660 GBP
View
B+
Retailer 6
-
£1,661 GBP
View
Final sale: no returns
A
Retailer 7
-
£1,670 GBP
View
A
Retailer 8
-
£1,762 GBP
View
Retailer 9
-
£1,768 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£1,799 GBP
View
B+
Retailer 11
-
£1,882 GBP
View
B+
Retailer 12
-
£2,076 GBP
View
B+
Retailer 13
-
£2,089 GBP
View
B
Retailer 14
-
£2,317 GBP
View
B
Retailer 15
-
£2,424 GBP
View
B
Retailer 16
-
£3,469 GBP
View
Most Expensive
C
NZ Jewellers
b5b6782a-54cf-498b-a633-c457fc6742ca · Nov 5
£4,151 GBP
$5,587 USD
View
16 more retailers have this diamond
Prices start from £1,502 GBPSave up to £2,649 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
£1,502 GBP