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Round|Natural|GIA

1.25ct G IF Round Natural Diamond

EX • G/IF • GIA 6431588718

Certificate GIA 6431588718

Diamond specifications and retailer prices

From £6,919 GBP
As of November 4, 2026
Save £8,731 GBP (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £15,650 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6431588718. Listed at 13 retailers as of November 4, 2026, with prices from £6,919 to £15,650, a £8,731 spread on the same certified stone. Diamond Quarter lists it at £15,650. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
G
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6431588718
Dimensions7.11 × 7.09 × 4.18 mm
L/W Ratio1.00
Top View
7.11 mm7.09 mm1.25 ctG / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6431588718
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: NoneDepth 58.9%

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: £8,387 GBP|Low: £6,919 GBP|High: £12,476 GBP|Avg: £8,859 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10£6,919 GBP
Retailer 7£7,200 GBP
Retailer 9£7,310 GBP
Retailer 8£7,612 GBP
Retailer 1£8,387 GBP
Retailer 6£8,576 GBP
Retailer 5£8,807 GBP
Retailer 4£9,469 GBP
Retailer 2£10,385 GBP
Retailer 3£12,295 GBP

45 data points across 10 retailers

13 retailers£6,919 GBP to £15,650 GBP

A
Cheapest Retailer
-
£6,919 GBP
A
Retailer 2
-
£7,200 GBP
View
A
Retailer 3
-
£7,235 GBP
View
A
Retailer 4
-
£7,310 GBP
View
B+
Retailer 5
-
£7,612 GBP
View
Final sale: no returns
B+
Retailer 6
-
£8,387 GBP
View
Retailer 7
-
£8,576 GBP
View
Price last confirmed 14 days ago
B+
Retailer 8
-
£8,807 GBP
View
B
Retailer 9
-
£9,403 GBP
View
B+
Retailer 10
-
£9,469 GBP
View
Retailer 11
-
£10,385 GBP
View
Price last confirmed 14 days ago
B
Retailer 12
-
£12,295 GBP
View
Most Expensive
B
Diamond Quarter
1.25IFG64188C56N · Nov 5
£15,650 GBP
View
12 more retailers have this diamond
Prices start from £6,919 GBPSave up to £8,731 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
1.25ct Round
£6,919 GBP