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Cushion|Natural|GIA

1.23ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 1547747427

Certificate GIA 1547747427

Diamond specifications and retailer prices

From £1,186 GBP
As of November 6, 2026
Save £1,649 GBP (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,835 GBP at MOH London · As of November 2, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1547747427. Listed at 7 retailers as of November 2, 2026, with prices from £1,186 to £2,835, a £1,649 spread on the same certified stone. MOH London lists it at £2,835. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle38.31°
OriginNatural
Grading LabGIA
CertificateGIA 1547747427
Dimensions7.51 × 5.62 × 3.88 mm
L/W Ratio1.34
Key to symbols
Crystal, Feather, Needle
Top View
7.51 mm5.62 mm1.23 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1547747427
Side View
Table 63.0%CrownGirdle: STK-THKPavilion 38.31°Culet: NoneDepth 69.1%

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: £2,835 GBP|Low: £1,186 GBP|High: £3,183 GBP|Avg: £1,945 GBP|-10.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5£1,186 GBP
Retailer 2£1,591 GBP
Retailer 4£1,653 GBP
Retailer 6£1,780 GBP
Retailer 7£1,863 GBP
Retailer 3£2,037 GBP
MOH London£2,835 GBP

42 data points across 7 retailers

7 retailers£1,186 GBP to £2,835 GBP

A
Cheapest Retailer
-
£1,186 GBP
A
Retailer 2
-
£1,591 GBP
View
A
Retailer 3
-
£1,653 GBP
View
A
Retailer 4
-
£1,780 GBP
View
B+
Retailer 5
-
£1,863 GBP
View
B+
Retailer 6
-
£2,037 GBP
View
Most Expensive
B+
MOH London
209EDC4CD · Nov 2
£2,835 GBP
View
6 more retailers have this diamond
Prices start from £1,186 GBPSave up to £1,649 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