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1.25ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6224521440

Certificate GIA 6224521440

Diamond specifications and retailer prices

From £2,481 GBP
$3,324 USD
As of October 31, 2026
Save £221 GBP (8%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,702 GBP at Jared · As of October 30, 2026
View at Jared

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6224521440. Listed at 4 retailers as of October 30, 2026, with a relatively tight 9% 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

1.25
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6224521440
Dimensions6.85 × 6.88 × 4.29 mm
L/W Ratio1.00
Top View
6.85 mm6.88 mm1.25 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6224521440
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £2,702 GBP|Low: £2,481 GBP|High: £2,941 GBP|Avg: £2,715 GBP|-8.1%
Jared
Retailer 2
Retailer 3
Retailer 4
September 26, 2026
Retailer 2£2,481 GBP
Retailer 3£2,620 GBP
Retailer 4£2,620 GBP
Jared£2,702 GBP

5 data points across 4 retailers

4 retailers£2,481 GBP to £2,702 GBP

B+
Cheapest Retailer
-
£2,481 GBP
$3,324 USD
B
Retailer 2
-
£2,620 GBP
$3,510 USD
View
B
Retailer 3
-
£2,620 GBP
$3,510 USD
View
Most Expensive
B
Jared
157138344 · Oct 30
£2,702 GBP
$3,620 USD
View
3 more retailers have this diamond
Prices start from £2,481 GBPSave up to £221 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.

B+
1.25ct Round
£2,481 GBP