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Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 7422774619

Certificate GIA 7422774619

Diamond specifications and retailer prices

From £1,341 GBP
As of November 6, 2026
Save £1,102 GBP (45%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,443 GBP at Frank Darling · As of November 6, 2026
View at Frank Darling

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 7422774619. Listed at 7 retailers as of November 6, 2026, with prices from £1,341 to £2,443, a £1,102 spread on the same certified stone. Frank Darling lists it at £2,443. 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
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7422774619
Dimensions5.71 × 5.67 × 4.20 mm
L/W Ratio1.01
Top View
5.71 mm5.67 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7422774619
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 74.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,443 GBP|Low: £1,341 GBP|High: £2,443 GBP|Avg: £1,753 GBP
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 3£1,341 GBP
Retailer 7£1,345 GBP
Retailer 6£1,353 GBP
Retailer 4£1,404 GBP
Retailer 5£1,718 GBP
Retailer 2£2,031 GBP
Retailer 8£2,380 GBP
Frank Darling£2,443 GBP

27 data points across 8 retailers

7 retailers£1,341 GBP to £2,443 GBP

B+
Cheapest Retailer
-
£1,341 GBP
B+
Retailer 2
-
£1,345 GBP
View
B+
Retailer 3
-
£1,353 GBP
View
B+
Retailer 4
-
£1,404 GBP
View
Retailer 5
-
£1,718 GBP
View
Price last confirmed 62 days ago
B
Retailer 6
-
£2,031 GBP
View
Most Expensive
B
Frank Darling
CU2550MR · Nov 6
£2,443 GBP
$3,270 USD
View
6 more retailers have this diamond
Prices start from £1,341 GBPSave up to £1,102 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+
1.20ct Cushion
£1,341 GBP