Round|Natural|GIA

1.30ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 6562025542

Certificate GIA 6562025542

Diamond specifications and retailer prices

From £2,495 GBP
As of November 6, 2026
Save £1,261 GBP (34%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £6,109 GBP at NZ Jewellers · As of September 21, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6562025542. Listed at 8 retailers as of November 5, 2026, with a 51% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6562025542
Dimensions6.88 × 6.93 × 4.34 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.88 mm6.93 mm1.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562025542
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.8%

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 6
Current: £2,495 GBP|Low: £2,495 GBP|High: £5,600 GBP|Avg: £3,507 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1£2,495 GBP
Retailer 4£2,863 GBP
Retailer 6£3,022 GBP
Retailer 2£3,168 GBP
Retailer 3£3,756 GBP
Retailer 5£5,526 GBP

20 data points across 6 retailers

8 retailers£2,495 GBP to £3,756 GBP

A
Cheapest Retailer
-
£2,495 GBP
A
Retailer 2
-
£2,863 GBP
View
Retailer 3
-
£3,022 GBP
View
Price last confirmed 7 days ago
A
Retailer 4
-
£3,168 GBP
View
Retailer 5
-
£3,507 GBP
View
Price last confirmed 50 days ago
B+
Retailer 6
-
£3,756 GBP
View
Retailer 7
-
£5,526 GBP
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
e7bd5ec2-8a92-4cee-b5ab-a9b2110a59a8 · Sep 21
£6,109 GBP
$8,177 USD
View
Price last confirmed 46 days ago
7 more retailers have this diamond
Prices start from £2,495 GBPSave up to £1,261 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
£2,495 GBP