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Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 5221766607

Certificate GIA 5221766607

Diamond specifications and retailer prices

From £3,993 GBP
$5,350 USD
As of October 31, 2026
Save £3,443 GBP (46%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £7,436 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5221766607. Listed at 22 retailers as of October 31, 2026, with prices from £3,993 to £7,436, a £3,443 spread on the same certified stone. MOH London lists it at £7,436. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.84°
Pavilion angle40.61°
OriginNatural
Grading LabGIA
CertificateGIA 5221766607
Dimensions6.94 × 6.53 × 4.44 mm
L/W Ratio1.06
Top View
6.94 mm6.53 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5221766607
Side View
Table 69.0%Crown 29.84°Girdle: Very ThickPavilion 40.61°Culet: NoneDepth 68.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £7,436 GBP|Low: £3,636 GBP|High: £7,525 GBP|Avg: £5,057 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 4£3,636 GBP
Retailer 3£3,993 GBP
Retailer 11£4,215 GBP
Retailer 12£4,461 GBP
Retailer 5£4,489 GBP
Retailer 9£4,499 GBP
Retailer 10£4,833 GBP
Retailer 13£4,949 GBP
Retailer 2£5,116 GBP
Retailer 8£5,178 GBP
Retailer 7£5,830 GBP
Retailer 6£6,555 GBP
MOH London£7,436 GBP

44 data points across 13 retailers

22 retailers£3,993 GBP to £7,436 GBP

B
Cheapest Retailer
-
£3,993 GBP
$5,350 USD
B
Retailer 2
-
£4,168 GBP
$5,584 USD
View
B
Retailer 3
-
£4,215 GBP
$5,648 USD
View
B
Retailer 4
-
£4,272 GBP
$5,724 USD
View
B
Retailer 5
-
£4,379 GBP
A$9,026 AUD
View
B
Retailer 6
-
£4,461 GBP
$5,977 USD
View
Final sale: no returns
B
Retailer 7
-
£4,489 GBP
$6,015 USD
View
B
Retailer 8
-
£4,499 GBP
$6,028 USD
View
B
Retailer 9
-
£4,759 GBP
$6,377 USD
View
B
Retailer 10
-
£4,833 GBP
$6,476 USD
View
B
Retailer 11
-
£4,885 GBP
CA$9,092 CAD
View
B
Retailer 12
-
£4,949 GBP
$6,631 USD
View
B
Retailer 13
-
£5,116 GBP
View
Retailer 14
-
£5,178 GBP
A$10,675 AUD
View
Price last confirmed 11 days ago
B
Retailer 15
-
£5,291 GBP
$7,090 USD
View
B
Retailer 16
-
£5,291 GBP
$7,090 USD
View
B
Retailer 17
-
£5,458 GBP
$7,313 USD
View
B
Retailer 18
-
£5,471 GBP
$7,330 USD
View
B
Retailer 19
-
£5,830 GBP
€7,439 EUR
View
Retailer 20
-
£5,880 GBP
$7,878 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
£6,555 GBP
ZAR 141,893 ZAR
View
Most Expensive
B
MOH London
293E97D95 · Nov 1
£7,436 GBP
View
21 more retailers have this diamond
Prices start from £3,993 GBPSave up to £3,443 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
£3,993 GBP