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Cushion|Natural|GIA

1.23ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 6552049831

Certificate GIA 6552049831

Diamond specifications and retailer prices

From £1,186 GBP
As of November 6, 2026
Save £1,644 GBP (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,829 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural cushion diamond

This 1.23ct natural cushion sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552049831. Listed at 7 retailers as of November 4, 2026, with prices from £1,186 to £2,829, a £1,644 spread on the same certified stone. MOH London lists it at £2,829. 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

1.23
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle35.54°
OriginNatural
Grading LabGIA
CertificateGIA 6552049831
Dimensions7.15 × 5.51 × 3.85 mm
L/W Ratio1.30
Top View
7.15 mm5.51 mm1.23 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552049831
Side View
Table 61.0%CrownGirdle: STK-VTKPavilion 35.54°Culet: NoneDepth 69.9%

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: £2,829 GBP|Low: £1,186 GBP|High: £3,166 GBP|Avg: £1,965 GBP|-10.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5£1,186 GBP
Retailer 2£1,592 GBP
Retailer 4£1,654 GBP
Retailer 6£1,781 GBP
Retailer 3£2,029 GBP
MOH London£2,829 GBP

45 data points across 6 retailers

7 retailers£1,186 GBP to £2,829 GBP

A
Cheapest Retailer
-
£1,186 GBP
A
Retailer 2
-
£1,592 GBP
View
A
Retailer 3
-
£1,654 GBP
View
A
Retailer 4
-
£1,781 GBP
View
B+
Retailer 5
-
£1,849 GBP
View
B+
Retailer 6
-
£2,029 GBP
View
Most Expensive
B+
MOH London
1E737D36E · Nov 4
£2,829 GBP
View
6 more retailers have this diamond
Prices start from £1,186 GBPSave up to £1,644 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
1.23ct Cushion
£1,186 GBP