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Cushion|Natural|GIA

1.51ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 7442418012

Certificate GIA 7442418012

Diamond specifications and retailer prices

From £3,349 GBP
As of November 6, 2026
Save £3,080 GBP (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £6,428 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two 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 7442418012. Listed at 7 retailers as of November 6, 2026, with prices from £3,349 to £6,428, a £3,080 spread on the same certified stone. Wholesale Diamonds Direct lists it at £6,428. 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

1.51
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7442418012
Dimensions6.48 × 6.32 × 4.54 mm
L/W Ratio1.03
Top View
6.48 mm6.32 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7442418012
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 71.8%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £4,727 GBP|Low: £3,304 GBP|High: £4,784 GBP|Avg: £4,259 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3£3,349 GBP
Retailer 4£4,237 GBP
Retailer 2£4,721 GBP
Retailer 1£4,727 GBP

40 data points across 4 retailers

7 retailers£3,349 GBP to £6,428 GBP

B+
Cheapest Retailer
-
£3,349 GBP
B
Retailer 2
-
£3,467 GBP
View
B
Retailer 3
-
£3,550 GBP
View
B
Retailer 4
-
£4,237 GBP
View
B
Retailer 5
-
£4,721 GBP
View
B
Retailer 6
-
£4,727 GBP
View
Most Expensive
C
Wholesale Diamonds Direct
217369834 · Nov 6
£6,428 GBP
$8,604 USD
View
6 more retailers have this diamond
Prices start from £3,349 GBPSave up to £3,080 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+
1.51ct Cushion
£3,349 GBP