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Cushion|Natural|GIA

1.23ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 17263757

Certificate GIA 17263757

Diamond specifications and retailer prices

From £2,052 GBP
As of November 6, 2026
Save £810 GBP (28%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,862 GBP at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

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 17263757. Listed at 2 retailers as of November 6, 2026, with prices from £2,052 to £2,862, a £810 spread on the same certified stone. 77 Diamonds lists it at £2,862. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 17263757
Dimensions6.10 × 5.92 × 4.12 mm
L/W Ratio1.03
Top View
6.10 mm5.92 mm1.23 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 17263757
Side View
Table 64.0%CrownGirdlePavilionCuletDepth 69.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £2,862 GBP|Low: £2,831 GBP|High: £2,901 GBP|Avg: £2,881 GBP|+1.1%
November 7, 2026
77 Diamonds£2,862 GBP

34 data points across 1 retailer

2 retailers£2,052 GBP to £2,862 GBP

B+
Cheapest Retailer
-
£2,052 GBP
Most Expensive
B
77 Diamonds
CUSZHWY2WBFK · Nov 7
£2,862 GBP
View
1 more retailer has this diamond
Prices start from £2,052 GBPSave up to £810 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+
1.23ct Cushion
£2,052 GBP