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Cushion|Natural|GIA

1.51ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 2557303410

Certificate GIA 2557303410

Diamond specifications and retailer prices

From £1,557 GBP
HK$16,300 HKD
As of November 1, 2026
Save £1,995 GBP (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,553 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557303410. Listed at 15 retailers as of November 1, 2026, with prices from £1,557 to £3,553, a £1,995 spread on the same certified stone. MOH London lists it at £3,553. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557303410
Dimensions7.53 × 6.01 × 4.14 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
7.53 mm6.01 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557303410
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

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: £3,553 GBP|Low: £1,557 GBP|High: £3,738 GBP|Avg: £2,262 GBP|-4.5%
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 12£1,557 GBP
Retailer 9£1,726 GBP
Retailer 7£1,727 GBP
Retailer 4£1,755 GBP
Retailer 11£1,829 GBP
Retailer 6£1,927 GBP
Retailer 10£1,948 GBP
Retailer 2£1,963 GBP
Retailer 13£2,005 GBP
Retailer 3£2,145 GBP
Retailer 8£2,208 GBP
Retailer 14£2,484 GBP
Retailer 5£3,409 GBP
MOH London£3,553 GBP

25 data points across 14 retailers

15 retailers£1,557 GBP to £3,553 GBP

A
Cheapest Retailer
-
£1,557 GBP
HK$16,300 HKD
A
Retailer 2
-
£1,726 GBP
$2,313 USD
View
A
Retailer 3
-
£1,727 GBP
$2,314 USD
View
Final sale: no returns
A
Retailer 4
-
£1,755 GBP
$2,351 USD
View
A
Retailer 5
-
£1,829 GBP
$2,451 USD
View
A
Retailer 6
-
£1,927 GBP
$2,582 USD
View
A
Retailer 7
-
£1,948 GBP
$2,610 USD
View
A
Retailer 8
-
£1,963 GBP
$2,630 USD
View
A
Retailer 9
-
£2,005 GBP
View
A
Retailer 10
-
£2,145 GBP
$2,874 USD
View
A
Retailer 11
-
£2,208 GBP
View
B+
Retailer 12
-
£2,395 GBP
A$4,938 AUD
View
B+
Retailer 13
-
£2,484 GBP
€3,170 EUR
View
Retailer 14
-
£3,409 GBP
$4,568 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
847DD2A5B · Nov 1
£3,553 GBP
View
14 more retailers have this diamond
Prices start from £1,557 GBPSave up to £1,995 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
£1,557 GBP