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Cushion|Natural|GIA

1.51ct J SI2 Cushion Natural Diamond

ID • J/SI2 • GIA 2557531375

Certificate GIA 2557531375

Diamond specifications and retailer prices

From £2,016 GBP
HK$21,100 HKD
As of November 1, 2026
Save £2,457 GBP (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,473 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 2557531375. Listed at 13 retailers as of November 1, 2026, with prices from £2,016 to £4,473, a £2,457 spread on the same certified stone. MOH London lists it at £4,473. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557531375
Dimensions7.62 × 5.83 × 4.01 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
7.62 mm5.83 mm1.51 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557531375
Side View
Table 65.0%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: £4,473 GBP|Low: £1,997 GBP|High: £4,637 GBP|Avg: £2,795 GBP|-3.5%
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 8£2,016 GBP
Retailer 7£2,153 GBP
Retailer 11£2,404 GBP
Retailer 5£2,451 GBP
Retailer 3£2,729 GBP
Retailer 4£2,765 GBP
Retailer 6£2,776 GBP
Retailer 10£2,806 GBP
Retailer 9£2,829 GBP
Retailer 2£3,109 GBP
MOH London£4,473 GBP

33 data points across 11 retailers

13 retailers£2,016 GBP to £4,473 GBP

A
Cheapest Retailer
-
£2,016 GBP
HK$21,100 HKD
A
Retailer 2
-
£2,153 GBP
₹274,724 INR
View
A
Retailer 3
-
£2,404 GBP
SGD 4,352 SGD
View
A
Retailer 4
-
£2,451 GBP
$3,284 USD
View
Final sale: no returns
B+
Retailer 5
-
£2,544 GBP
$3,409 USD
View
B+
Retailer 6
-
£2,682 GBP
A$5,528 AUD
View
Retailer 7
-
£2,729 GBP
$3,657 USD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
£2,765 GBP
$3,704 USD
View
B+
Retailer 9
-
£2,776 GBP
View
B+
Retailer 10
-
£2,806 GBP
SGD 5,081 SGD
View
B+
Retailer 11
-
£2,829 GBP
$3,790 USD
View
B+
Retailer 12
-
£3,109 GBP
€3,967 EUR
View
Most Expensive
B
MOH London
A856D8BF8 · Nov 1
£4,473 GBP
View
12 more retailers have this diamond
Prices start from £2,016 GBPSave up to £2,457 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
£2,016 GBP