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Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

ID • J/SI1 • GIA 5232739201

Certificate GIA 5232739201

Diamond specifications and retailer prices

From £3,113 GBP
$4,171 USD
As of October 31, 2026
Save £3,467 GBP (53%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £6,580 GBP at MOH London · As of October 29, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5232739201. Listed at 24 retailers as of October 29, 2026, with prices from £3,113 to £6,580, a £3,467 spread on the same certified stone. MOH London lists it at £6,580. 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Pavilion angle36.05°
OriginNatural
Grading LabGIA
CertificateGIA 5232739201
Dimensions7.84 × 5.99 × 4.06 mm
L/W Ratio1.31
Top View
7.84 mm5.99 mm1.51 ctJ / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5232739201
Side View
Table 62.0%CrownGirdle: STK-THKPavilion 36.05°Culet: NDepth 67.8%

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: Oct 31
Current: £6,580 GBP|Low: £2,976 GBP|High: £6,623 GBP|Avg: £4,150 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 11£3,113 GBP
Retailer 7£3,435 GBP
Retailer 6£3,465 GBP
Retailer 3£3,504 GBP
Retailer 9£3,723 GBP
Retailer 10£3,842 GBP
Retailer 4£4,009 GBP
Retailer 8£4,116 GBP
Retailer 2£4,649 GBP
Retailer 5£5,051 GBP
MOH London£6,580 GBP

44 data points across 11 retailers

24 retailers£3,113 GBP to £6,580 GBP

B+
Cheapest Retailer
-
£3,113 GBP
$4,171 USD
B+
Retailer 2
-
£3,210 GBP
$4,301 USD
View
B+
Retailer 3
-
£3,247 GBP
$4,350 USD
View
Retailer 4
-
£3,273 GBP
$4,385 USD
View
Price last confirmed 18 days ago
B+
Retailer 5
-
£3,286 GBP
$4,403 USD
View
B
Retailer 6
-
£3,389 GBP
A$6,986 AUD
View
B
Retailer 7
-
£3,435 GBP
$4,603 USD
View
Final sale: no returns
B
Retailer 8
-
£3,465 GBP
$4,643 USD
View
B
Retailer 9
-
£3,504 GBP
$4,695 USD
View
B
Retailer 10
-
£3,688 GBP
$4,942 USD
View
B
Retailer 11
-
£3,723 GBP
$4,988 USD
View
B
Retailer 12
-
£3,822 GBP
A$7,878 AUD
View
B
Retailer 13
-
£3,830 GBP
CA$7,127 CAD
View
B
Retailer 14
-
£3,842 GBP
$5,148 USD
View
B
Retailer 15
-
£4,009 GBP
View
B
Retailer 16
-
£4,090 GBP
$5,480 USD
View
B
Retailer 17
-
£4,090 GBP
$5,480 USD
View
Retailer 18
-
£4,116 GBP
A$8,484 AUD
View
Price last confirmed 23 days ago
B
Retailer 19
-
£4,218 GBP
$5,652 USD
View
B
Retailer 20
-
£4,224 GBP
$5,660 USD
View
Retailer 21
-
£4,535 GBP
$6,076 USD
View
Price last confirmed 10 days ago
B
Retailer 22
-
£4,649 GBP
€5,932 EUR
View
B
Retailer 23
-
£5,051 GBP
ZAR 109,332 ZAR
View
Most Expensive
B
MOH London
3875FE8C0 · Oct 29
£6,580 GBP
View
23 more retailers have this diamond
Prices start from £3,113 GBPSave up to £3,467 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
£3,113 GBP