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Round|Natural|GIA

1.25ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 5232753757

Certificate GIA 5232753757

Diamond specifications and retailer prices

From £3,233 GBP
As of November 3, 2026
Save £600 GBP (16%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £5,378 GBP at MOH London · As of October 29, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5232753757. Listed at 9 retailers as of November 3, 2026, with a relatively tight 19% 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5232753757
Dimensions6.89 × 6.94 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.89 mm6.94 mm1.25 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5232753757
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 3
Current: £5,378 GBP|Low: £2,690 GBP|High: £5,414 GBP|Avg: £3,641 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 4£2,725 GBP
Retailer 7£3,233 GBP
Retailer 2£3,414 GBP
Retailer 6£3,429 GBP
Retailer 9£3,429 GBP
Retailer 3£3,582 GBP
Retailer 5£3,798 GBP
Retailer 8£3,833 GBP
MOH London£5,378 GBP

37 data points across 9 retailers

9 retailers£3,233 GBP to £3,833 GBP

Retailer 1
-
£2,725 GBP
Price last confirmed 8 days ago
B+
Retailer 2
-
£3,233 GBP
View
Retailer 3
-
£3,414 GBP
View
Price last confirmed 7 days ago
B+
Retailer 4
-
£3,429 GBP
View
B+
Retailer 5
-
£3,429 GBP
View
Retailer 6
-
£3,582 GBP
View
Price last confirmed 28 days ago
Retailer 7
-
£3,798 GBP
View
Price last confirmed 14 days ago
B+
Retailer 8
-
£3,833 GBP
View
Most Expensive
MOH London
C572A3A6A · Oct 29
£5,378 GBP
View
Price last confirmed 8 days ago
8 more retailers have this diamond
Prices start from £3,233 GBPSave up to £600 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
£3,233 GBP