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Cushion|Natural|GIA

1.20ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 6411297026

Certificate GIA 6411297026

Diamond specifications and retailer prices

From £1,283 GBP
As of November 6, 2026
Save £655 GBP (34%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,938 GBP at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6411297026. Listed at 6 retailers as of November 5, 2026, with prices from £1,283 to £1,938, a £655 spread on the same certified stone. 77 Diamonds lists it at £1,938. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6411297026
Dimensions5.87 × 5.77 × 3.97 mm
L/W Ratio1.02
Top View
5.87 mm5.77 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6411297026
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £1,938 GBP|Low: £1,283 GBP|High: £2,087 GBP|Avg: £1,609 GBP|-5.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 5£1,283 GBP
Retailer 3£1,287 GBP
Retailer 4£1,301 GBP
Retailer 2£1,338 GBP
Retailer 6£1,411 GBP
77 Diamonds£1,938 GBP
Retailer 7£2,004 GBP
Retailer 8£2,087 GBP

36 data points across 8 retailers

6 retailers£1,283 GBP to £1,938 GBP

B+
Cheapest Retailer
-
£1,283 GBP
B+
Retailer 2
-
£1,287 GBP
View
B+
Retailer 3
-
£1,301 GBP
View
B+
Retailer 4
-
£1,338 GBP
View
Retailer 5
-
£1,411 GBP
View
Price last confirmed 61 days ago
Most Expensive
B
77 Diamonds
CUSMB74JGRSTF · Nov 5
£1,938 GBP
View
5 more retailers have this diamond
Prices start from £1,283 GBPSave up to £655 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
£1,283 GBP