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Round|Natural|GIA

1.25ct J IF Round Natural Diamond

EX • J/IF • GIA 6131428768

Certificate GIA 6131428768

Diamond specifications and retailer prices

From £3,384 GBP
As of November 4, 2026
Save £3,375 GBP (50%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £6,759 GBP at MOH London · As of November 4, 2026
View at MOH London

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 J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6131428768. Listed at 7 retailers as of November 4, 2026, with prices from £3,384 to £6,759, a £3,375 spread on the same certified stone. MOH London lists it at £6,759. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6131428768
Dimensions6.92 × 6.90 × 4.26 mm
L/W Ratio1.00
Star length55%
Lower girdle80%
Top View
6.92 mm6.90 mm1.25 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6131428768
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.6%

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 4
Current: £6,759 GBP|Low: £3,384 GBP|High: £6,860 GBP|Avg: £4,768 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4£3,384 GBP
Retailer 2£4,084 GBP
Retailer 5£4,278 GBP
Retailer 3£4,785 GBP
MOH London£6,759 GBP

41 data points across 5 retailers

7 retailers£3,384 GBP to £6,759 GBP

A
Cheapest Retailer
-
£3,384 GBP
B+
Retailer 2
-
£4,084 GBP
View
Retailer 3
-
£4,278 GBP
View
Price last confirmed 19 days ago
B+
Retailer 4
-
£4,366 GBP
View
Retailer 5
-
£4,695 GBP
View
Price last confirmed 14 days ago
B+
Retailer 6
-
£4,785 GBP
View
Most Expensive
B
MOH London
1ABB134E8 · Nov 4
£6,759 GBP
View
6 more retailers have this diamond
Prices start from £3,384 GBPSave up to £3,375 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
£3,384 GBP