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Cushion|Natural|GIA

1.51ct J SI2 Cushion Natural Diamond

VG • J/SI2 • GIA 6522239125

Certificate GIA 6522239125

Diamond specifications and retailer prices

From £1,385 GBP
HK$14,500 HKD
As of November 1, 2026
Save £1,803 GBP (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,189 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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6522239125. Listed at 17 retailers as of November 1, 2026, with prices from £1,385 to £3,189, a £1,803 spread on the same certified stone. MOH London lists it at £3,189. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle34.1°
OriginNatural
Grading LabGIA
CertificateGIA 6522239125
Dimensions6.37 × 6.37 × 4.36 mm
L/W Ratio1.00
Top View
6.37 mm6.37 mm1.51 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6522239125
Side View
Table 60.0%Crown 39.7°Girdle: STK-THKPavilion 34.1°Culet: NoneDepth 68.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £3,189 GBP|Low: £1,328 GBP|High: £3,207 GBP|Avg: £1,805 GBP|+2.6%
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
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 11£1,385 GBP
Retailer 15£1,413 GBP
Retailer 7£1,452 GBP
Retailer 10£1,487 GBP
Retailer 8£1,490 GBP
Retailer 5£1,523 GBP
Retailer 4£1,649 GBP
Retailer 3£1,662 GBP
Retailer 13£1,754 GBP
Retailer 16£1,754 GBP
Retailer 2£1,800 GBP
Retailer 14£1,814 GBP
Retailer 9£1,929 GBP
Retailer 6£2,224 GBP
Retailer 12£2,273 GBP
MOH London£3,189 GBP

26 data points across 16 retailers

17 retailers£1,385 GBP to £3,189 GBP

A
Cheapest Retailer
-
£1,385 GBP
HK$14,500 HKD
A
Retailer 2
-
£1,413 GBP
$1,893 USD
View
A
Retailer 3
-
£1,452 GBP
$1,945 USD
View
A
Retailer 4
-
£1,487 GBP
$1,993 USD
View
A
Retailer 5
-
£1,487 GBP
$1,993 USD
View
A
Retailer 6
-
£1,490 GBP
$1,996 USD
View
B+
Retailer 7
-
£1,523 GBP
$2,040 USD
View
Final sale: no returns
A
Retailer 8
-
£1,649 GBP
$2,209 USD
View
A
Retailer 9
-
£1,662 GBP
$2,227 USD
View
A
Retailer 10
-
£1,754 GBP
$2,350 USD
View
A
Retailer 11
-
£1,754 GBP
$2,350 USD
View
A
Retailer 12
-
£1,800 GBP
View
A
Retailer 13
-
£1,814 GBP
$2,430 USD
View
A
Retailer 14
-
£1,929 GBP
View
B+
Retailer 15
-
£2,224 GBP
$2,980 USD
View
B+
Retailer 16
-
£2,273 GBP
€2,900 EUR
View
Most Expensive
B
MOH London
851C760DD · Nov 1
£3,189 GBP
View
16 more retailers have this diamond
Prices start from £1,385 GBPSave up to £1,803 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
1.51ct Cushion
£1,385 GBP