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Cushion|Natural|GIA

1.54ct J SI1 Cushion Natural Diamond

ID • J/SI1 • GIA 6512596055

Certificate GIA 6512596055

Diamond specifications and retailer prices

From £1,671 GBP
$2,239 USD
As of October 31, 2026
Save £1,598 GBP (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,269 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.54ct natural cushion diamond

This 1.54ct 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 6512596055. Listed at 14 retailers as of October 29, 2026, with prices from £1,671 to £3,269, a £1,598 spread on the same certified stone. MOH London lists it at £3,269. 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

1.54
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.68°
OriginNatural
Grading LabGIA
CertificateGIA 6512596055
Dimensions7.57 × 6.25 × 4.22 mm
L/W Ratio1.21
Top View
7.57 mm6.25 mm1.54 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512596055
Side View
Table 62.0%Crown 35.68°Girdle: Very ThickPavilionCulet: NoneDepth 67.6%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £3,269 GBP|Low: £1,564 GBP|High: £3,696 GBP|Avg: £2,089 GBP|-11.5%
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
November 2, 2026
Retailer 4£1,671 GBP
Retailer 11£1,676 GBP
Retailer 12£1,712 GBP
Retailer 7£1,791 GBP
Retailer 13£1,843 GBP
Retailer 14£1,856 GBP
Retailer 10£1,961 GBP
Retailer 2£1,983 GBP
Retailer 8£2,011 GBP
Retailer 3£2,015 GBP
Retailer 9£2,260 GBP
Retailer 6£2,453 GBP
Retailer 5£2,541 GBP
MOH London£3,269 GBP

28 data points across 14 retailers

14 retailers£1,671 GBP to £3,269 GBP

A
Cheapest Retailer
-
£1,671 GBP
$2,239 USD
A
Retailer 2
-
£1,676 GBP
$2,246 USD
View
A
Retailer 3
-
£1,712 GBP
$2,294 USD
View
Final sale: no returns
A
Retailer 4
-
£1,791 GBP
View
A
Retailer 5
-
£1,843 GBP
$2,470 USD
View
A
Retailer 6
-
£1,856 GBP
$2,487 USD
View
A
Retailer 7
-
£1,961 GBP
$2,627 USD
View
A
Retailer 8
-
£1,983 GBP
View
A
Retailer 9
-
£2,011 GBP
$2,695 USD
View
A
Retailer 10
-
£2,015 GBP
$2,700 USD
View
A
Retailer 11
-
£2,260 GBP
ZAR 48,918 ZAR
View
Retailer 12
-
£2,453 GBP
A$5,057 AUD
View
Price last confirmed 25 days ago
Retailer 13
-
£2,837 GBP
$3,801 USD
View
Price last confirmed 66 days ago
Most Expensive
B+
MOH London
9DFD4E605 · Oct 29
£3,269 GBP
View
13 more retailers have this diamond
Prices start from £1,671 GBPSave up to £1,598 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
1.54ct Cushion
£1,671 GBP