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Round|Natural|GIA

1.30ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6412546405

Certificate GIA 6412546405

Diamond specifications and retailer prices

From £1,845 GBP
As of November 6, 2026
Save £3,614 GBP (66%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £5,459 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 6412546405. Listed at 12 retailers as of November 5, 2026, with prices from £1,845 to £5,459, a £3,614 spread on the same certified stone. Diamond Quarter lists it at £5,459. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6412546405
Dimensions6.97 × 6.91 × 4.37 mm
L/W Ratio1.01
Top View
6.97 mm6.91 mm1.30 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6412546405
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 63.0%

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: £2,269 GBP|Low: £1,826 GBP|High: £4,181 GBP|Avg: £2,522 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8£1,845 GBP
Retailer 9£1,995 GBP
Retailer 10£2,196 GBP
Retailer 11£2,258 GBP
Retailer 1£2,269 GBP
Retailer 3£2,496 GBP
Retailer 5£2,529 GBP
Retailer 4£2,567 GBP
Retailer 2£2,580 GBP
Retailer 6£2,878 GBP
Retailer 7£4,137 GBP

32 data points across 11 retailers

12 retailers£1,845 GBP to £5,459 GBP

A
Cheapest Retailer
-
£1,845 GBP
A
Retailer 2
-
£1,995 GBP
View
A
Retailer 3
-
£2,196 GBP
View
A
Retailer 4
-
£2,258 GBP
View
A
Retailer 5
-
£2,269 GBP
View
A
Retailer 6
-
£2,496 GBP
View
A
Retailer 7
-
£2,529 GBP
View
A
Retailer 8
-
£2,567 GBP
View
A
Retailer 9
-
£2,580 GBP
View
A
Retailer 10
-
£2,878 GBP
View
B+
Retailer 11
-
£4,137 GBP
View
Most Expensive
B
Diamond Quarter
1.3SI2G6405A8E7N · Nov 5
£5,459 GBP
View
11 more retailers have this diamond
Prices start from £1,845 GBPSave up to £3,614 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
£1,845 GBP