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Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 2547450823

Certificate GIA 2547450823

Diamond specifications and retailer prices

From £1,028 GBP
As of November 6, 2026
Save £1,233 GBP (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,261 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547450823. Listed at 10 retailers as of November 4, 2026, with prices from £1,028 to £2,261, a £1,233 spread on the same certified stone. MOH London lists it at £2,261. 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

1.20
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2547450823
Dimensions5.90 × 5.71 × 3.85 mm
L/W Ratio1.03
Top View
5.90 mm5.71 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2547450823
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.4%

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: £2,261 GBP|Low: £1,028 GBP|High: £2,305 GBP|Avg: £1,489 GBP|-1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2£1,028 GBP
Retailer 9£1,251 GBP
Retailer 3£1,255 GBP
Retailer 10£1,301 GBP
Retailer 8£1,396 GBP
Retailer 7£1,430 GBP
Retailer 5£1,436 GBP
Retailer 6£1,579 GBP
Retailer 4£1,757 GBP
MOH London£2,261 GBP

25 data points across 10 retailers

10 retailers£1,028 GBP to £2,261 GBP

A
Cheapest Retailer
-
£1,028 GBP
B+
Retailer 2
-
£1,251 GBP
View
A
Retailer 3
-
£1,255 GBP
View
Retailer 4
-
£1,301 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£1,396 GBP
View
B+
Retailer 6
-
£1,430 GBP
View
B+
Retailer 7
-
£1,436 GBP
View
B+
Retailer 8
-
£1,579 GBP
View
B
Retailer 9
-
£1,757 GBP
View
Most Expensive
B
MOH London
B9CF7B431 · Nov 4
£2,261 GBP
View
9 more retailers have this diamond
Prices start from £1,028 GBPSave up to £1,233 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
1.20ct Cushion
£1,028 GBP