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Round|Natural|GIA

1.30ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6565142220

Certificate GIA 6565142220

Diamond specifications and retailer prices

From £1,909 GBP
As of November 4, 2026
Save £2,426 GBP (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,335 GBP at NZ Jewellers · As of November 2, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565142220. Listed at 18 retailers as of November 2, 2026, with prices from £1,909 to £4,335, a £2,426 spread on the same certified stone. NZ Jewellers lists it at £4,335. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6565142220
Dimensions6.95 × 6.90 × 4.38 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Cloud, Indented Natural
Top View
6.95 mm6.90 mm1.30 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6565142220
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.3%

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: £4,335 GBP|Low: £1,909 GBP|High: £4,335 GBP|Avg: £2,608 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
Retailer 16
November 5, 2026
Retailer 16£1,909 GBP
Retailer 8£1,961 GBP
Retailer 15£1,976 GBP
Retailer 7£2,254 GBP
Retailer 13£2,254 GBP
Retailer 6£2,303 GBP
Retailer 10£2,356 GBP
Retailer 12£2,421 GBP
Retailer 5£2,449 GBP
Retailer 14£2,449 GBP
Retailer 9£2,559 GBP
Retailer 2£2,719 GBP
Retailer 4£2,886 GBP
Retailer 3£2,922 GBP
Retailer 11£4,161 GBP
NZ Jewellers£4,335 GBP

36 data points across 16 retailers

18 retailers£1,909 GBP to £4,335 GBP

A
Cheapest Retailer
-
£1,909 GBP
A
Retailer 2
-
£1,961 GBP
View
A
Retailer 3
-
£1,976 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,080 GBP
View
A
Retailer 5
-
£2,254 GBP
View
Retailer 6
-
£2,254 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£2,303 GBP
View
A
Retailer 8
-
£2,356 GBP
View
Retailer 9
-
£2,421 GBP
View
Price last confirmed 19 days ago
A
Retailer 10
-
£2,449 GBP
View
A
Retailer 11
-
£2,449 GBP
View
A
Retailer 12
-
£2,559 GBP
View
B+
Retailer 13
-
£2,597 GBP
View
B+
Retailer 14
-
£2,601 GBP
View
B+
Retailer 15
-
£2,719 GBP
View
B+
Retailer 16
-
£2,922 GBP
View
B
Retailer 17
-
£4,161 GBP
View
Most Expensive
B
NZ Jewellers
5466e838-73e8-4ff3-86d4-dbf94caca483 · Nov 2
£4,335 GBP
$5,835 USD
View
17 more retailers have this diamond
Prices start from £1,909 GBPSave up to £2,426 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
£1,909 GBP