Round|Natural|GIA

1.30ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6555978872

Certificate GIA 6555978872

Diamond specifications and retailer prices

From £3,035 GBP
As of November 5, 2026
Save £526 GBP (15%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,777 GBP at NZ Jewellers · As of October 9, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555978872. Listed at 16 retailers as of November 2, 2026, with a relatively tight 17% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555978872
Dimensions6.91 × 6.94 × 4.37 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.91 mm6.94 mm1.30 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555978872
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.1%

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 5
Current: £5,777 GBP|Low: £2,644 GBP|High: £5,777 GBP|Avg: £3,639 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
Retailer 17
Retailer 18
November 2, 2026
Retailer 3£2,644 GBP
Retailer 8£2,694 GBP
Retailer 6£2,697 GBP
Retailer 9£2,995 GBP
Retailer 7£3,005 GBP
Retailer 16£3,005 GBP
Retailer 18£3,005 GBP
Retailer 11£3,035 GBP
Retailer 15£3,094 GBP
Retailer 12£3,151 GBP
Retailer 14£3,367 GBP
Retailer 4£3,467 GBP
Retailer 13£3,502 GBP
Retailer 2£3,561 GBP
Retailer 10£3,751 GBP
Retailer 5£4,844 GBP
Retailer 17£5,345 GBP
NZ Jewellers£5,777 GBP

23 data points across 18 retailers

16 retailers£3,035 GBP to £3,561 GBP

Retailer 1
-
£2,644 GBP
Price last confirmed 25 days ago
Retailer 2
-
£2,697 GBP
View
Price last confirmed 30 days ago
Retailer 3
-
£2,995 GBP
View
Price last confirmed 26 days ago
Retailer 4
-
£3,005 GBP
View
Price last confirmed 27 days ago
Retailer 5
-
£3,005 GBP
View
Price last confirmed 25 days ago
Retailer 6
-
£3,005 GBP
View
Price last confirmed 38 days ago
A
Retailer 7
-
£3,035 GBP
View
A
Retailer 8
-
£3,151 GBP
View
Retailer 9
-
£3,367 GBP
View
Price last confirmed 25 days ago
Retailer 10
-
£3,467 GBP
View
Price last confirmed 28 days ago
B+
Retailer 11
-
£3,502 GBP
View
B+
Retailer 12
-
£3,561 GBP
View
Retailer 13
-
£3,751 GBP
View
Price last confirmed 25 days ago
Retailer 14
-
£4,844 GBP
View
Price last confirmed 11 days ago
Retailer 15
-
£5,345 GBP
View
Price last confirmed 26 days ago
Most Expensive
NZ Jewellers
023a0375-c74b-4d1d-881d-f0cb36556b88 · Oct 9
£5,777 GBP
$7,776 USD
View
Price last confirmed 28 days ago
15 more retailers have this diamond
Prices start from £3,035 GBPSave up to £526 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
£3,035 GBP